82 results about "Early winter" patented technology

The invention discloses a cocoa tea great parental stock grafting method of cultivation, comprising: (1) the choice of the grafting time: the grafting time is from the late autumn or the early winter to the February of the next year; (2) the choice of parental stock: a 5-15 year-old pu erh tea plant growing in tea garden with broken parental stock and repaired fault plane is selected as the parental stock; (3) the choice of cion of the cocoa tea: the cion of the cocoa tea is the clonal fine variety of cocoa tea and the cion wattle is the lignified wattle born in the last year or the semi-lignified wattle born in the current year; (4) cion cutting: the cut cion is immerged into the auxin accelerating the generation of callus; (5) grafting: the cion is engrafted into the parental stock; (6) bag-covering colligating: the parental stock connected with the cion is colligated by a transparent and enduring plastic bag; (7) an awning is established by a rack to protect; (8) the fallow and the supplement of water; (9) the remove of bag: the plastic bag and a sunshade net can be gradually removed after the cion survives. The method of cultivation of the invention has a high survival rate and a high garden forming speed, with unchanged basic property of cocoa tea, thereby increasing the quality of theanine.

The present invention relates to antifreezing concrete, which is prepared by the following components by weight percent: 16.5-17.0% of Portland cement or ordinary Portland cement, 6-7% of water, 26.5-27.5% of fine aggregate, 34.5-37% of coarse aggregate, 12.5-15.0% of a phase change material, and 1.0-2.0% of an additive, wherein the phase-transition temperature of the phase change material is 4.0-6.0 DEG C, and the enthalpy of phase change is 240-270 J / g. The beneficial effects of the invention are that: the antifreezing concrete containing the phase change material provided by the present invention effectively uses the specific thermal performance of the phase change material in order to prevent the occurrence of freezing and thawing cycles or reduce times of suffering freezing and thawing cycles. Therefore, when the temperature is not too low, especially in late autumn, early winter, late winter and early spring, the influence on traffic safety of concrete bridge and road surface from freezing can be effectively prevented. In severe cold areas, the damage or deterioration degree of concrete structures caused by repeated freezing and thawing can be relieved. For concrete projects constructed in winter, concrete before reaching critical strength can be prevented from freezing damage.

The invention discloses a low-temperature diesel exhaust reducing agent and a preparation method thereof. The reducing agent is composed of a component A, a component B, a component C and a component D and is characterized in that the components A, B, C and D are dissolved and mixed in a certain ratio. The component A is high-purity water with mass fraction of 40 to 70%; the component B is urea with mass fraction of 20 to 35%; the component C is micromolecular liquid amide with mass fraction of 5 to 20%; and the component D is micromolecular alcohol with mass fraction of 2 to 35%. Compared with a traditional urea reducing agent, the low-temperature diesel exhaust reducing agent can be used at low and ultralow temperature. The freezing point of the prepared reducing agent is lower than -15 to -35 DEG C, has surface tension obviously smaller than common urea reducing agents and is applicable in four seasons in the south China and in spring, summer, autumn, early winter and cold seasons in north China.

The invention relates to a quick cultivation method of grafted sweet cherry seedlings and belongs to the field of plant cultivation. The method comprises steps as follows: collection and storage of variety scions; preparation of a cutting bed, cuttage and management after cuttage of rootstock, grafting of the scions and management of nursery stock after grafting. A greenhouse is adopted for special cultivation, grafting of the variety scions is performed in the second half of May, transplantation can be performed in the very year after leaf falling, the seedling raising time is greatly shortened, and the grafted sweet cherry seedlings are obtained quickly. With the adoption of the method, sweet cherries only take one growth season from rootstock seedlings to transplantation of the grafted variety scions, and cultivation time of the grafted sweet cherry seedlings is 1 year shorter than that of the seedlings cultivated with a conventional seedling raising method. The nursery stock can be transplanted after leaf falling in the early winter, the seedlings are 1.5-2.0 m high, the base of each seedling is 1.0-1.5 m thick, sprouts are plump, the germination rate is high, and the nursery stock is high in quality and strong. The seedling raising cost is greatly reduced due to the fact that the seedling raising time is shortened by 1 year.

The invention relates to an early-stage automatic winter wheat drawing method based on Sentinel-2 image data. The method includes following steps of obtaining Sentinel-2 image data of early winter wheat in the study area; performing atmospheric correction and cloud mask processing on the data; calculating and generating NDVI vegetation index; combining the prior knowledge of winter wheat phenologyto generate phenological characteristics of multiple winter wheat targeting; establishing the classification rules of winter wheat by using the generated phenological characteristics. The distribution results of winter wheat in the study area and the corresponding area monitoring information are obtained by using the classification rules. According to the method, winter wheat phenological characteristics are used for constructing winter wheat-targeted phenological characteristics, high-precision winter wheat recognition independent of ground data can be achieved, and a refined winter wheat drawing result with the spatial resolution of 10 meters can be obtained 5 months before winter wheat is harvested.

The invention relates to a method for winter protection of trees by utilizing an aluminum plating reflective membrane. For the winter protection of gardening shrubs such as highbush blueberries and the like and arbor young trees, the aluminum plating reflective membrane used as a winter protection material is made into a tubular bag with proper length; during end-autumn and early-winter, tubular bags are sleeved outside tree bodies of which branches are bound into fasciculation by nylon cords in advance, and then are tightly bounded and sealed; for the winter protection of shrub-like trees such as lowbush blueberries and the like, vine plants such as grape vines and the like, and nursery-grown plants, the aluminum plating reflective membranes are directly covered above the plants, the planted row and a seed bed with necessary winter protection, of which branches are bound in advance, and the aluminum plating reflective membranes are compacted around by soil; and for the prevention of frost crack of trunks of planting tree species, the aluminum plating reflective membrane covers 1 to 2m from the bottom of the trunk. The method has the advantages that: 1, damage to trees caused by overhigh local temperature and overlarge temperature difference between day and night of the trunk due to direct solar irradiation to the day side of the tree is avoided; and 2, the bag covering mode has the effects of heat insulation and moisture resistance, and the method is low in cost and can be easily operated.

The invention discloses a method for planting transplanting type alfalfa. The method for planting the transplanting type alfalfa comprises the following steps that alfalfa varieties which are strong in disease resistance and early in dormancy are selected, seeds are selected through the winnowing and screening modes, and the seeds are spread and placed under the blazing sun for 3-4 days; a land which is leeward, exposed to the sun, high in terrain, dry in soil, good in water draining and close to a water source is selected to serve as a seedbed land; the sowing time is selected between March and April, a nutrition pot is used for growing seedlings, the seeding rate is 20 grams per square meter, and seeds are covered by soil by 2 centimeters; water is supplemented and covering is carried out timely according to the soil water regime of a seedbed; transplanting is carried out when the rainy season comes in mid-to-late June, the transplanting method of digging dibble water sitting sowing or digging pits is adopted, or transplanting is carried out before rainy days or after rainy days; weeds around rice seedlings are removed at the time of soil freezing and melting in the late autumn and early winter, in the late autumn and early winter, the land is irrigated once with frozen water and is irrigated with green resuming water when the alfalfa begins to return to green every spring; the alfalfa is not harvested in the year when the alfalfa is transplanted to enable the alfalfa to live through the winter safely, and the alfalfa can be harvested in autumn next year. The method is simple and convenient to operate, and the yield of the alfalfa is improved.

The invention relates to a low-temperature condition release ammonia reducing agent composition and a preparation method thereof, and belongs to the low-temperature condition release ammonia reducing agent composition and the preparation method thereof. The composition is prepared by the following raw materials in parts by mass: 15-21 parts of ammonium carbonate, 0.79-1 part of urea, 0.80-1.57 parts of ammonium formate, 2.0-8.3 parts of low molecular alcohols, and 25-31 parts of high-purity water. Compared with a traditional urea reducing agent, the composition can release an ammonia source under a lower temperature. The obtained product can be used under the environment below -15 DEG C, and can totally satisfy normal operation of an SCR system. The freezing point of the product is -15 DEG C; and the product can be used in four reasons in the south and in spring, summer, autumn and early winter in the north.

The subject of this invention is the anti-inflammatory activity of a formulation of Barbarea verna (upland cress, early winter cress, or winter cress) seed preparation (BSP) containing phenethylisothiocyanate as its main active ingredient. BSP is a promising anti-inflammatory agent, which can be used for treatment of many inflammation-related conditions, including but not limited to rheumatoid and osteoarthritis, acute and chronic pains, lupus, irritable bowl disease, cancer and metabolic syndrome.

The invention discloses a pond polyculture method for Yangtze-river two-year-old coilia ectenes fingerlings and scatophagus argus. The method is characterized by comprising the following steps: firstly, an estuary-area pond and natural brackish water with an inflow salinity of 0.5-1.5% are chosen, and food organism is inoculated in the pond; secondly, fingerlings are put in the pond in winter or in early spring, wherein the stocking size of Yangtze-river two-year-old coilia ectenes fingerlings is a total length of 10 to 12 cm, and the stocking density thereof is 500 to 600 fishes per mu; thirdly, the scatophagus argus is put in the pond from the end of April to the beginning of May, wherein the stocking density is 150 to 250 fishes per mu,and the stocking size is 20 to 30 gram per fish; fourthly, 1 / 3 of water is changed each month from January to June, 1 / 3 of water is changed each half month from July to September, and 1 / 3 of water is changed each month from October to December; fifthly, food organism is supplemented timely when the density of the food organism is lower than 1 per litre; sixthly, during a cultivation period, artificial pellet feed is supplemented as the feed for the scatophagus argus, opossum shrimp and crustacean 1 to 2 jin per mu and 1 time per day; finally, fishes are captured with nets in early winter, wherein the specification of captured coilia ectenes is 16 to 20 gram per fish while the specification of the scatophagus argus is 110 to 130 gram per fish.

The invention discloses a method for planting grapes in a northwest arid region. The method mainly comprises the following steps of (a) nursery-grown plant preparation: digging out propagated grape nursery-grown plants and treating the nursery-grown plants; (b) digging of planting furrows: digging the planting furrows before freezing up of the ground in an early winter; (c) backfilling of the planting furrows: filling straws, organic fertilizers and mellow soil in the dug planting furrows; (d) film covering: smoothening the planting furrows after backfilling, watering and settlement and covering the planting furrows by using mulching films; (e) nursery-grown plant planting: planting the treated nursery-grown plants in the planting furrows; and (f) soil covering: covering the planted nursery-grown plants by using fine grained soil with the thickness of 7-8 centimeters. Compared with the prior art, the method for planting the grapes in the northwest arid region has the advantages that grape seedlings planted in the northwest arid region are robust and the yield is high.

The invention discloses a lagerstroemia plant stem tip chromosome tablet preparation method which comprises the following steps of: selecting a part with a length of 0.5-1.0 cm at the innermost side of a lagerstroemia plant annual branch stem tip growing point or a newly-grown stem tip growing point after a branch which is pruned or refrigerated in early winter is subjected to water culture, fixing with stationary liquid (Ethanol: glacial acetic acid: chloroform is equal to 5:3:2 according to the to volume ratio), carrying out hypotonic treatment, carrying out hypotonic treatment again after mixed enzyme liquid is subjected to enzymatic hydrolysis and preparing a tablet by adopting a flame drying method. The chromosome tablet preparation method has the beneficial effects that the processes of pretreatment, dissociation and chromosome tabletting are omitted, the tablet preparation efficiency is improved through directly fixing, the toxic effect of pretreatment liquid and dissociation liquid on a chromosome is avoided, the original form of the chromosome is maintained, the better chromosome dispersion effect is obtained, and meanwhile, the sampling range and the time of lagerstroemia plant stem tip chromosome preparation are enlarged. The tablet prepared by the method can be used for a fluorescence in-situ hybridization experiment to lay a good foundation for the further research of a lagerstroemia genome.

The invention discloses a method for breeding a high-temperature resistant strain of stropharia rugosoannulata. The method comprises the following steps: (1) collecting stropharia rugosoannulata strains or sporocarp, carrying out genetic diversity and genetic relationship analysis, rejecting strains in close genetic relationships, and collecting rest strains as test strains; (2) carrying out hyphahigh-temperature resistant progressive circulation domestication on the test strains, and screening high-temperature domesticated strains of stropharia rugosoannulata; (3) inoculating the high-temperature domesticated strains of the stropharia rugosoannulata into a liquid medium, leaving to stand and culture, collecting hyphae, and carrying out enzymolysis with lywallzyme so as to obtain protoplast; (4) carrying out high-temperature regeneration testing on the protoplast, and screening a high-temperature resistant strain. A high-quality high-yield high-temperature resistant strain is screenedby using the method, the problems that early sowing hyphae in early autumn are not capable of enduring high temperatures and the cap of sporocarp is liable to open at the end of spring and at the beginning of summer if seeds are sown in late autumn in production can be solved, and high-quality high-yield strains can be provided for cultivation in early autumn and harvesting in early winter and prolonging of mushroom harvesting periods in spring in the Eastern China.

The invention discloses a special white washing agent for apple trees, belonging to the technical field of fruit tree trunk protection coatings. The white washing agent comprises the following raw materials: honey, flour, quick lime, table salt, copper sulfate, pricklyash peel extracting liquid, castor-oil plant extracting liquid, garlic extracting liquid, indigowoad root powder, ginger juice, pumpkin seed powder and sulfur powder. The white washing agent disclosed by the invention can be firmly stuck on tree barks aiming at plant diseases and insect pests of the apple trees and the tree bark properties of the apple trees; the honey, the flour and various plant source insecticidal and sterilizing medicines are added into the white washing agent so that light reflecting and warm keeping effects can be realized; and the white washing agent has remarkable prevention and treatment effects on the common plant diseases and insect pests of the apple trees. The white washing agent prepared by the method has a pure white color and long lasting time, and only needs to be coated once in early spring or late fall and early winter in one year, so that the white washing agent has the advantages of saving labor, saving time, saving resources, lasting for a long time and having good prevention and treatment effects on the plant diseases and insect pests.

The invention provides a method for sampling wetland soil. The method uses the climate characteristics, the sampling time is selected in the early winter in a seasonal or permanent freeze-thaw zone, the column-core sampling of the wetland soil is carried out by cooperating a gasoline power soil auger and a depth control peat drill when a surface layer of the wetland soil is frozen with at least 20cms of thickness. The frozen wetland surface layer is convenient for depth sampling, the operation is relatively convenient, even the portable vehicles can be carried in the wetland, so that a great deal of sampling time can be saved, the labor intensity of operators can be reduced simultaneously, and the work efficiency is greatly enhanced. In addition, under the condition of freezing the surface layer soil, no disturbance is generated when the activity is carried out on the wetland, more importantly, the collected column-core is easy for forming and segmenting. According to the wetland soil sampling of the Sanjiang Plain wetland proves that the method for sampling wetland soil of the invention is capable of solving the wetland soil sampling problem in the seasonal or permanent freeze-thaw zone.

The invention belongs to the technical field of agricultural planting, and particularly relates to a wheat high-yield planting method. The planting method comprises the steps of tillage, soil preparation, moisture formation, variety selection, fertilizer delivery, field management and the like; the technology of integrated nitrogen management is used, and under the condition that the nitrogen amount is not changed in the whole growth period of wheat, a base fertilizer and topdressing are combined, and the proportion of the nitrogen application amount in the middle and later periods is controlled to be 7:3 or 6:4; an early winter watering, two-increase and one-reduction high-yield and high-efficiency cultivation technology of winter wheat is used, a one-spraying three-proofing method is also used, foliage fertilizer spraying is carried out for three times before heading, in the initial blooming period and in the grouting period respectively, and winter watering is carried out in the mid-to-late November before winter, so that wheat investment is low, the cost and the consumption are reduced, residues of compounds in the land are reduced, and the yield of the wheat is increased.

The invention relates to a mixed microbial inoculant suitable for biogas digesters to generate biogas under low temperature conditions in the Northeast of China. The mixed microbial inoculant is obtained by mixing 1.4-1.8 parts of a fermentation broth of Trichoderma viride, 1.8-2.3 parts of a fermentation broth of Bacillus subtilis, 4.1-6.5 parts of a fermentation broth of Pseudomonas putida, 1.1-1.5 parts of a fermentation broth of Bacillus licheniformis and 0.1-0.2 parts of a fermentation broth of Alcaligenes. The mixed microbial inoculant is adopted to make most biogas digesters in the Northeast of China be normally used in winter, and biogas digesters stopped in early winter be started. The invention relates to a preparation method of the mixed microbial inoculant generating the biogas at a low temperature in the Northeast of China.

The present invention discloses a delayed cultivation method of an extremely late-maturing wild peach variety. The method comprises the following steps: shading in spring to delay flowing, gradually raising temperature, performing temperature and humidity control in florescence, performing pesticide application managing, performing bagging treatment on a wild peach, delaying fruit bearing in late autumn and early winter, and keeping fresh after bag removal. The present invention also discloses a delayed fresh-keeping method of the extremely late-maturing wild peach variety. According to the methods disclosed by the present invention, greenhouse thermal insulation and high performance of delay management are integrated, and commercial value of a product is greatly improved. According to the methods disclosed by the present invention, by adopting the living body fresh-keeping technology, drug residue of the fruit is reduced, and the safety of the fruit after being on the market is ensured.

The invention discloses a flora and fauna comprehensive utilization restoring method of heavy metal contaminated soil. The method is realized through the following technical schemes with the following steps: (1) selecting to-be-restored heavy metal contaminated soil, artificially eliminating weeds and shrub, sufficiently applying decomposed organic agricultural miscellaneous fertilizer at late autumn and early winter, deeply ploughing, weathering the soil to freeze overwintering injurious insects to death, thoroughly ploughing and harrowing; (2) transplanting woody fast-growing arbor mulberry with capacity of enriching heavy metal when the average temperature achieves 10 DEG C or more after the soil is unfrozen in spring; (3) after the transplanting, introducing earthworms restoring process when the temperature achieves 15 DEG C or more, and then collecting the earthworms; (4) introducing herbage ramie with super-accumulation effect for Cu<2+> and fast growth speed after the first earthworm collection in the earthworm restoring process, enhancing the enrichment effect to the shallow soil copper ion, and then entirely removing the ramie plant with the root; and re-introducing the earthworms and the ramie in the restored soil in spring of the next year.

The invention relates to a cultivation method of haloxylon ammodendron suitable in an arid desert region. The method comprises following steps: (1) excavating planting furrows of haloxylon ammodendron: opening furrows which are 35-45 cm wide and 25-35 deep along a latitudinal direction by utilizing a tractor with ploughshares in the arid desert region from late autumn to early winter such that the distance between furrows ranges from 3 to 5 m; (2) selecting seedlings for haloxylon ammodendron: selecting seedlings without plant diseases and insect pests of annular haloxylon ammodendron; (3) planting haloxylon ammodendron: adopting a seedling planting tool to plant haloxylon ammodendron seedlings after soil thawing in spring next year; (4) performing maintenance management of haloxylon ammodendron.The cultivation method of haloxylon ammodendron suitable in the arid desert region has following beneficial effects: intensity of labour is greatly reduced; planting and irrigation of haloxylon ammodendron seedlings can be integrated; planting time is shortened; survival rate of seedlings is increased and time and water can be saved.

The invention belongs to a cultivation method of fruit trees, and particularly relates to a cultivation method of northern Lycium chinense. The cultivation method solves the defect that the resource amount of northern Lycium chinense in Gansu Province is sharply reduced since the traditional northern Lycium chinense is influenced by altitude and excessively harvested in recent years, and chemical grass killers are popularized. The cultivation method is characterized in that the pH (potential of Hydrogen) value of sandy soil in a planting land is 7.5.to 8.5; and the land is deeply tilled, prepared and irrigated with winter water in late autumn and early winter of the previous year before sowing, and seeds are sown when the soil is unfrozen in spring of the next year. The cultivation method has the beneficial effects that selected soil is suitable for the growth of Lycium chinense, and scarifying treatment is performed on the seeds before sowing, so that the germination rate of the seeds is greatly increased, the yield of Lycium chinense is increased, the cold resistance and drought resistance of the seeds are improved, the using amounts of agricultural chemicals and chemical fertilizers are reduced, and the quality of Lycium chinense is improved; and the cultivation method is little in planting investment and high in benefit, can bring considerable social and economical benefits, and also can generate great ecological environment benefit.

The invention provides a method for cultivating shepherd's purses at low temperature and at high altitude. The plant cultivating method comprises the steps of (1) soil selection and treatment: selecting planting land having an average sun light exposure time of more than 8-10h during late spring and early summer; (2) seed treatment: soaking seeds in water at the temperature of 20-25 DEG C, soaking the seeds in a growth accelerator, and mixing the seeds with wet soil fine powder at a mass ratio of 1:10; (3) seedling culture: scattering the treated seeds on the land uniformly for seedling culture; (4) topdressing and harvesting: after each seedling grows two leaves, performing topdressing, killing pests with pesticides and harvesting shepherd's purses thoroughly after late autumn and early winter. The growth accelerator can promote germination of the seeds, can prevent the seeds from being frostbitten in high-altitude and low-temperature regions, and can guarantee the rate of emergence. Shepherd's purses cultivated with the method are high in yield and high in nutritional value.

The invention relates to durable antifreezing concrete which is prepared from the following ingredients by mass percentage: 16.5-17.0% of Portland cement or ordinary Portland cement, 6-7% of water, 26.5-27.5% of fine aggregates, 34.5-37% of coarse aggregates, 12.5-15.0% of a phase-change energy storage material and 1.0-2.0% of an additive, wherein a phase change temperature of the phase-change energy storage material is 4.0-6.0 DEG C; and a phase change enthalpy is 240-270J / g. The antifreezing concrete has the beneficial effects that the antifreezing concrete comprising the phase-change energystorage material effectively utilizes special thermal performance of the phase-change energy storage material to prevent a freezing and thawing cycle of the concrete or reduce the number of the freezing and thawing cycles. Therefore, when the temperature is not too low, particularly in late autumn, early winter, late winter and early spring, the influence of freezing of a concrete bridge and a pavement on traffic safety can be effectively avoided; in extremely cold areas, a damage or deterioration extent of a concrete structure due to the repeated freezing and thawing cycles can be reduced; and for concrete works constructed in the winter, the concrete can avoid freezing damage before reaching critical freezing intensity.

The invention provides a pregermination method of potato in early winter, comprising the steps of processing potato, pregerminating, and slicing. The pregermination method is characterized by comprising the following steps: (a) potato seed processing: putting a potato seed into mixed liquor of 700-900 times of liquid of 58% of metalaxyl and gibberellin with concentration of 1-2 ppm at the volume ratio of 1:1, and dipping for 2-5 minutes; (2) pregermination: carrying out circumcision on processed potato seed by 3 / 4 near the terminal bud, putting on a wet straw, stacking 3-4 layers according to the principle that straw and potato are alternately arranged, covering by a film or a sack, and stopping pregermination when the length of the bud is 2-3 cm; and (3) slicing: slicing the pregerminated potato seed by a sterilized tool according to the specification of 30-40g of rhombic bisphenoid, wherein each rhombic bisphenoid has one bud; sterilizing the tool again after used for 10 minutes or when the tool cuts diseased and rotten potatoes; and naturally drying the sliced potato blocks until wound surface is suberized, and sowing. The invention can effectively lower potato consumption amount, prevent cross infection of germs (virus), lower rotten potato rate and improve rate of emergence.

The invention discloses a diesel oil tail gas reducing agent for improving low temperature performances, and a preparation method thereof. The problem of poor low temperature resitance of urea solutions for present traditional vehicles is solved in the invention, the atomization effect of the urea solution is effectively improved, and the NOx reducing efficiency is improved. The reducing agent comprises, by mass, 45-70% of highly pure water A, 20-35% of urea B, and 5-35% of micro-molecular liquid amide C. The product disclosed in the invention is suitable for being used at a low temperature, has a freezing point reaching -15 ~ -25 DEG C, has obviously lower surface tension than traditional common urea reducing agents, is suitable for being used in four seasons in south, and is suitable for being used in spring, summer, autumn and early winter in north.

The invention relates to the field of mulberry planting, and in particular relates to a high-yield pruning method for mulberries in the north of China. The method aims to solve the problems such as anirregular tree shape, random spring pruning of branches and insufficient number of branches exist in a current pruning method for the mulberries in the north of China; and the method includes the following steps: 1) training a tree shape, planting the mulberries in late autumn and early winter, and performing cultivation to obtain a strong branch in a first year; performing cultivation to obtainthree strong branches in a second year; performing cultivation to obtain six strong branches in a third year; and performing cultivation to obtain twelve strong branches in a fourth year; 2) performing spring pruning: performing spring pruning on branches of one same mulberry by taking a main trunk as a center, determining the number of branches for spring pruning, determining the number of buds to be retained, and shortening the pruned branch distance; and 3) in the growth process after the tree shape is trained, performing one-branch-twice-cutting in spring and one-branch-twice-cutting in autumn. The method provided by the invention standardizes the reasonable number range of branches per mu of a mulberry field, innovates the high-yield structure of the mulberry field, improves the yieldof mulberry leaves to a maximum extent, reduces the costs of silkworm breeding, creates a high yield of the mulberry field and a new achievement of autumn mulberry shoot labor-saving breeding of silkworms, and fills the gap of the autumn mulberry shoot labor-saving breeding of silkworms in China.

The invention pertains to technical fields of plant cultivation and seed breeding and relates to a method for adjusting the flowering phase of iris germanica.The method comprises following steps: excavating 3-plus years of seedlings of iris germanica before two to three weeks of an initial flowering phase of iris germanica in Spring; transplanting to sandy loam applied with peat and urea for field plantation; thoroughly watering field planting water; manually watering twice at the interval of four to five days without rain in the seedling recovering phase and supplying no water; paying attention to water drainage in a plum rain season between June and July; dressing compound fertilizers before 2 to 3 weeks in the pre-flowering phase of Autumn; transplanting iris germanica and starting flowering during the period from the end of September to the early October around; and prolonging the flowering phase of each flower from 3 to 4 days in Spring to 6 to 8 days in Autumn and prolonging the flowering phase of each variety of flowers from 15 to 20 days in Spring to 50 to 60 days in Autumn. The method for adjusting the flowering phase of iris germanica has following beneficial effects: the flowering phase of iris germanica is adjusted and prolonged; popularization and application value of iris germanica are increased; and the diversity of outdoor flowers in Autumn and early winter of the middle and lower reaches of Yangtze river is improved.

The invention discloses compound anti-freezing liquid for vegetables and a preparation method thereof. The compound anti-freezing liquid is prepared from the following components: 50 to 70 parts of tea seed meal, 140 to 180 parts of biogas liquid, 15 to 20 parts of a plant growth regulator, 30 to 50 parts of polyglutamic acid, 5 to 8 parts of rare-earth micro-fertilizer, 20 to 35 parts of fulvic acid, 10 to 15 parts of a microelement additive, 8 to 12 parts of choline chloride, 16 to 20 parts of silicon fertilizer and 12 to 18 parts of polyethylene glycol 200. The compound anti-freezing liquidprepared by the preparation method is mainly applied when the temperature is 10 to 15 DEG C in late autumn, early winter and late spring coldness, and can be used for preventing the vegetables from freezing injuries after being applied; normal growth of the vegetables during an anti-freezing period is protected, and the photosynthesis time of the vegetables can be prolonged; meanwhile, various nutrient elements are provided for the vegetables and the vegetables are prevented from being invaded by external diseases.

The invention relates to the technical field of crop planting, in particular to a method for planting winter wheat on concave-convex ground surfaces. The method comprises the steps: performing interval and deep loosening on soil within a week after a former crop of wheat is harvested, performing ridging in areas which are not loosened deeply, performing ditching in deeply loosened areas, and covering the interior of ditches with crop straw so as to form concave-convex ground surfaces and a soil-gas barrier interface and promote gathering and accumulation of rainwater in the soil; controlling weeds with herbicide in the summer slack season; performing seed dressing by using fungicide or / and pesticide before wheat sowing is conducted, performing sowing at an equal row spacing and an equal furrow width, and performing integrated operation of fertilization, strip rotary tillage, sowing and repression so as to achieve wheat planting on the concave-convex ground surfaces; performing chemicalweeding in early winter; performing spraying of a plant growth regulator and top dressing at green-returning and jointing stages; and at a heading to flowering stage, performing combination of one spray of a foliar fertilizer with three prevention. According to the method, negative impact of water and fertilizer stress on growth and development of dry land wheat is reduced by modifying the soil,performing straw covering for rainwater collection and soil moisture conservation, adopting concave-convex ground planting, and performing localized fertilization in root zones, so that the material production capacity and utilization efficiency of water and fertilizer are improved, and the yield of wheat is increased stably.

The invention discloses an oil-tea camellia high-yield planting technology. The technology comprises the steps that a, preparation before planting: the growth of oil-tea camellia is poor in an area where soil contains calcareous substances so that the area cannot be selected as a forestry field, soil preparation is conducted in autumn and winter of the first year, and the area is selected according to local conditions based on forestry conditions, operation levels and the like; b, seeding breeding: oil-tea camellia seeds are directly sowed in a seedling bead, culturing is conducted for 1-2 years, bare-rooted seedlings are taken out of a planting field, after the planting field is turned and plowed in early winter, rotted manures are uniformly applied, the rotten manures are broken by rakesto make farmland pieces, rat plaque is prevented when winter sowing is conducted, the seeds are soaked for 2-3 days 25 days before spring sowing, germination acceleration is conducted 18-22 days in asand bed before the seeds are sowed in the planting field, 20,000 seeds are sowed in each mu, which takes up approximately 40 kg of the weight of the seeds, the soil thickness is 1.5-2.0 cm, slight tamping is conducted, and a quick-acting nitrogen fertilizer (0.5%) is applied for once when the height of the seedlings reaches 10 cm. The technology has the advantages that the topdressing of the fertilizer is emphasized to prevent less seeds of oil-tea camellia, and yield improving is achieved.