71results about How to "Extended green period" patented technology

The fertilizer specially for lawn includes inorganic fertilizer 35-75 wt%, organic fertilizer 25-35 wt%, and stuffing and adhesive for the rest. Its production includes one improved pelletizing process, in which, one improved granulating disc resulting in high balling degree and fine homogeneous pellets, one improved drier with external heating and completing one second balling at 60-65 deg.c and one improved sieving system coompleting one third balling comprising sieving, polishing, rounding, coating, oil coating and fine treatment are adopted. The present invention provides one new pelletizing technology.

The invention relates to a method for preparing green seed curtain with water absorber, slow-release fertilizer and protector, wherein the method comprises that: the prector comprises 5-20% pesticide, 5-20% herbicide, 3-10% antimold, 1-5% diacid, 1-5% hydrazides, 0.01-0.1% crosslinker, and 40-84% porous adsorption material. The invention coats one adhesive layer on the degradable plastic film; compresses the fiber layer on it and holes; coats adhesive layer on it; sprays needed plant seed, protector, absorber, and slow-release fertilizer on it; compresses the fiber layer. The invention can reduce waste water discharge, high yield, etc.

The multifunctional slow releasing lawn fertilizer is prepared through mixing cake residue, turf, humic acid, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, trace elements, and plant growth regulator. It has perfect nourishing and curing function, slow releasing function, and fast, stable and lasting fertilizer effect. Test shows that lawn with the fertilizer applied has early regreening in spring, no excessive growth in summer, fast restoring in autumn, less diseases and pests and long green period, and is environment friendly.

The invention discloses a method for maintaining and reproducing an evergreen lawn. The method includes technological steps of (1), selecting a warm-season lawn green land and determining rejuvenation and maintenance time of a lawn; (2), taking rejuvenation and maintenance measures; (3), manufacturing a cold-season soil-free grass carpet; (4) selling the cold-season soil-free grass carpet and restoring the growth of the warm-season lawn. The method has the advantages that the built lawn is rejuvenated and maintained on the same lawn area, the new lawn with the area one to two times that of the built lawn is reproduced simultaneously, accordingly, the green period of the built lawn is prolonged, the new lawn with the large area is reproduced, and a novel mode for maintaining and reproducing the evergreen lawn is formed; the land productivity is high, the production cost is low, and economical, social and environmental benefits are obvious; as observed by tests, manufacture of the soil-free grass carpet rarely affects the lawn of the green land, and the growth of the lawns is unaffected even if dormant periods in different years are properly shortened.

The invention provides a cultivation method of mixed-lawn, providing the cultivation method of novel mixed-lawn, which solves the problems of high maintenance cost and high consumption of the water, nutrient and energy for the cold season lawn, as well as the problems of short green stage, poor greening effect and difficult cultivation for the warm season lawn through the mixed-lawn method of the stalked meadow grass which is the cold season lawn grass and the zoysia which is the warm season lawn grass, and the process of preparing, snowing, maintaining the seedling, pruning, managing the finished lawn and the like.

The invention discloses a related culture technology and a method for constructing phalaris arundinacea population in ecological concrete spheres on a river bank protection slope, belonging to the technical field of ecological environmental protection and restoration of a watercourse bank slope. The method provides a series of culture integration technologies such as a picking and storage method of phalaris arundinacea seeds, a selective criterion of a vinegar residue matrix, a sowing date determination principle, sowing density, a sowing method and irrigation and fertilization management after sowing. With the adaptation of the integration technologies, the acidity and the basicity of the ecological concrete are significantly improved, the growing time of the phalaris arundinacea before a next-year wet season is prolonged, the proportion of planting the phalaris arundinacea in gaps in the concrete spheres is increased, the vegetation coverage reaches over 100 percent, and the averagebiomass can reach 1.36kg / m<2> (dry weight above the ground). Moreover, the number of the phalaris arundinacea which is washed away is significantly reduced after the next-year wet season, and the vegetation is stable.

The invention discloses a fertilizer for prolonging the green period of lawn grass and a preparation method thereof. The fertilizer comprises the following components in part by weight: 85 to 90 parts of solution of nitrogen-containing compound, 9 to 14 parts of solution of iron-containing compound or solution of iron-containing chelate, 0.001 to 0.5 part of solution of vitamin C and 0.01 to 0.5 part of solution of salicylic acid. The solution of nitrogen-containing compound, the solution of vitamin C, the solution of salicylic acid and the solution of iron-containing compound or the solutionof iron-containing chelate are mixed uniformly to obtain the fertilizer for prolonging the green period of the lawn grass. The fertilizer has the advantages of simple preparation, convenient use, foliage fertilization, less using amount and less loss, and can be applied to the prolonging of the green period of the lawn grass and also used for the plants of which the physiological activity of the leaves are kept to prolong the green period.

A binary expression carrier of Agrobacterium for culturing the seeds of plant by genetic engineering contains the closely linked corm ubiquitin promoter Pubi regulated Arabidopsisí» cold response gene transcription activation factor gene cbf1 and the Arabidopsis specific senescence gene promote SAG12 regulated iso-pentenyl transferase ipt geneí»s two-valence stress-resistant gene. Its preparing process includes such steps as inserting the T-Nos of sag12-ipt fusion gene into a binary carrier, inserting ubi-cbf1 fusion gene and inserting sag12-ipt fusion gene.

The invention discloses a method for cultivating evergreen lawn quickly. According to the method, the lawn is established by planting two types of grass, namely warm-season type grass and cool-season type grass, in a mixed mode according to different growing periods so that the green period of the lawn can be prolonged, non-woven fabric is laid before sowing, through the underground film covering mode, underground weeds can be sealed and prevented from entering the growing area of the lawn, the circumstance that the weeds and the lawn grow simultaneously is prevented, the weeds are prevented from adversely affecting the normal growth and reproduction of the lawn, and cost for removing the weeds can be greatly reduced.

The invention belongs to the field of landscaping, and provides a controlled-release nutritional type soilless lawn matrix. The controlled-release nutritional type soilless lawn matrix is composed of the following raw materials in parts by weight: 30-40 parts of rice chaff powder, 25-30 parts of spent mushroom compost, 10-15 parts of sasangua cake having grain size less than 5mm, 15-20 parts of humic acid phosphorus-potassium fertilizer, and 5-10 parts of calcium sulfate. The spent mushroom compost and the sasangua cake of which the grain size is less than 5mm are separately fermented or fermented after being mixed, the microbial zymophyte is added for fermenting, the mass content ratio of C to N in the material is regulated to be less than 25, and after sufficient fermenting, the humic acid phosphorus-potassium fertilizer, the rice chaff powder and calcium sulfate are added according to the above proportion and then uniformly mixed to obtain the controlled-release nutritional type soilless lawn matrix. The controlled-release nutritional type soilless lawn matrix provided by the invention is high in nutrient content, small in maintenance, capable of reducing nutrient loss, improving the nutrient utilization rate, and is in favor of the environmental protection.

The invention relates to a plant protectant, especially to a plant cold-resistant anti-freezing protectant, which is prepared from the following raw materials: ethylene glycol, edible amino acids, guaiacol, glucose, ascorbic acid, vitamin E, paraffin, castor oil and water that are in a weight ratio of 5.0-15:5.0-15:10-25:1.0-10:0.5-3.5:0.5-5.0:1.0-10:2.0-12:90-120. The invention can enhance the water retention and cold resistance of plants, mitigate freezing damage, has alleviating and restoring effects on freezing-damaged plants of moderate and mild degrees, and is ineffective on severe damage. The plant freezing point can be lowered by 5-8DEG C. With the protectant provided in the invention, the effects of inducing plants to generate sugar and other antifreezing materials, accelerating nutrient absorption and running, increasing chlorophyll, improving crop yield and quality, reducing leaf water and nutrient loss, resisting cold and preventing freezing, and prolonging the green period can be reached. With the advantages of no toxicity, no pollution, no phytotoxicity, as well as green environmental protection, the protectant provided in the invention is a good helper for plant growth.

The invention discloses a method for establishing and planting a composite lawn through overseeding of cool season turfgrass and warm season turfgrass and the composite lawn, and relates to the technical field of football field lawn establishing and planting. The method includes the following steps that warm season turfgrass seeds are sowed at a to-be-sowed lawn, and after the warm season turfgrass is budded and before the dormant period, and the cool season turfgrass seeds are sowed, wherein the warm season turfgrass is zoysia japonica, and the cool season turfgrass is one of bluegrass, red fescue and carex stenophylloides or a composition of bluegrass, red fescue and carex stenophylloides. According to the method, the suitable cool-season-turfgrass-seed one of the bluegrass, the red fescue and the carex stenophylloides or the composition of the bluegrass, the red fescue and the carex stenophylloides is selected and is subjected to overseeding with warm-season-turfgrass zoysia japonica, the two seeds are separately sowed, namely, the two seeds are sowed at different time periods, and therefore the formed composite lawn has the long green period and good uniformity.

The invention provides a plant foliar fertilizer with the antifreezing function, relating to the technical field of pesticides. The plant foliar fertilizer is prepared from a fertilizer composition and an antifreezing composition in a ratio of 2:1, wherein the fertilizer composition comprises the following components in parts by weight: 5-15 parts of humic acid, 4-6 parts of amino acid, 2-3 parts of plant protein, 1-3 parts of copper sulfate, 1-2 parts of a water-soluble film coating agent and 25-35 parts of NPK (nitrogen, phosphorus and potassium); the antifreezing composition comprises the following components in parts by weight: 5 parts of Chinese ivy, 5 parts of hoya carnosa, 15 parts of epipremnum aureum, 5 parts of syngonium podophyllum, 20 parts of monstera deliciosa, 30 parts of euonymus japonicus, 0.05 part of antifreezing fluid for automobiles, 0.01 part of castor oil and 0.1 part of preservative. The plant foliar fertilizer can be used for perennial plants in most parts of China, such as all the vegetables, fruit trees, flowers and plants and bonsai, can enhance the water retention and cold resistance of the plants, has relief and recovery effects on the plants suffering moderate and mild freezing injuries, adds chlorophyll, increases the yields and quality of crops and lengthens the green period.

The invention provides a plant antifreezing solution which comprises the following components in parts by weight: 2 to 5 parts of paraffin, 5 to 8 parts of vegetable oil, 4 to 8 parts of polybutylene, 3 to 9 parts of potassium fulvic, 5 to 9 parts of benzoic acid, 2 to 6 parts of tea polyphenol, 2 to 5 parts of citric acid and 2 to 5 parts of a cooking liquor of cassia twig, sappanwood, ginger and ampelopsis japonica. The ion content of Cu, Fe, Mn, Zn and B in the antifreezing solution is greater than or equal to 100 g / L. The plant antifreezing solution is simple in composition and convenient to use, the freeze injury damage on trees can be greatly reduced, the antifreezing effect is good, and the plant antifreezing solution activates biological enzyme, prevents the generation of ice nucleus bacteria, breaks ice forming activity of freezing protein, and increases heat. The ice point value of plant cells is reduced, the flow of cellular plasm is promoted, the cell viability is improved by 4 to 8 times, the water holding and drought resisting abilities of the plant are improved, freeze injury danger is reduced, functions of reducing and recovering are played on middle and light freeze injury plants, effects on serious damage are in vain, and the ice point value of the plant is reduced by 5 to 8 degrees.

The invention belongs to the field of crop fertilizer, and particularly relates to a special harmless liquid pesticide-fertilizer capable of preventing pests in lawns and degrading pesticide residues and a preparation method thereof. The special harmless liquid pesticide-fertilizer comprises microbial florae, humic acid, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, iron fertilizer, pesticide, a water-soluble isolating agent and the like. The special harmless liquid pesticide-fertilizer is capable of providing nutrient substances for crops while eliminating diseases and pests; the nutrient substances are rapidly absorbed through leaf surfaces of crops, so that the nutrient substances are unlikely to lose; and the microbial florae are also capable of improving the photosynthesis of the crops, promoting the adsorption and utilization of the nutrient substances and the rapid growth of the lawns, degrading the pesticide residues and the like.

The invention discloses a method for raising cool-season lawn grass heat resistance through a treatment of foliage spray of citric acid, and relates to the technical field of landscaping lawn management. The method includes the steps of: 1, Festuca arundinacea lawn building and planting, which includes the substeps of sowing and lawn management; and 2, foliage spray of a citric acid solution, wherein sodium citrate is prepared into an optimum concentration of 2mmol / L, and for the built Festuca arundinacea lawn, the sodium citrate solution is uniformly sprayed on the Festuca arundinacea lawn 100kg per mu through a foliage spray method at the high temperature initial stage in summer, and the sodium citrate solution is sprayed again after one week. The method for raising the cool-season lawn grass heat resistance through the treatment of foliage spray of the citric acid obviously raises the heat resistance of Festuca arundinacea by applying the citric acid to the Festuca arundinacea lawn, raises the lawn quality, prolongs the green period, and reduces the yellowing rate. In comparison with the method of seed selection of heat-resistant Festuca arundinacea, the method of the invention has the advantages of short period, fast effect, strong operationality, and low cost.

The invention belongs to the technical field of compound fertilizer production, and relates to an ammoniation method to process weathered coal to produce potassium sulfate type compound fertilizer and a manufacturing method thereof. It is formed by adding powdered weathered coal to the traditional ammoniated granulation potassium sulfate compound fertilizer production and activated by ammonia and acid. The product of the invention has reasonable compatibility and balanced nutrients, and has the functions of improving soil, stimulating the development of plant roots and improving fertilizer utilization rate, and is a new type of sulfur-based compound fertilizer rich in organic matter and various nutrient elements.

The invention relates to the field of microbes, in particular to a method for preparing a composite probiotic spraying agent. The method comprises the following steps of: performing propagation culture in respective culture medium according to the inoculation quantity of 1 to 4 weight percent, then mixing, inoculating 3 to 4 weight percent of mixture into a liquid fermentation medium, and finallyperforming fermentation culture for 48 to 72 hours at the temperature of between 25 and 37 DEG C. The leaf surface spraying agent can prolong the growth period of vegetables and improve the yield andthe taste of the vegetables, and the yield of the vegetables can be improved by 5.5 to 10.0 percent; and the ornamental period of flowers can be prolonged by 8 to 10 days.

The invention provides a plant antifreeze protective agent and a preparation method thereof. The plant antifreeze protective agent is prepared from the following raw materials in mass ratio: glycerol:edible amino acid: sodium nitrophenolate: trehalose: methyl jasmonate: vitamin C: chlorine calcium: liquid paraffin: olive oil: monoglyceride: water is equal to (5.0-15):(2.0-8.0):(12-24):(2.0-8.0):(0.1-0.15):(0.5-2.5):(0.5-5.0):(1.0-8.0):(1.0-6.0):(0.02-0.2):(95-110). The plant antifreeze protective agent and the preparation method thereof have the advantages of enhancing the resistance of plants to external injury, enhancing the ability of the plant to resist abiotic stress, reducing the low temperature freezing injury, relieving, eliminating and healing medium and mild freezing injury plants, activating the cold induced stress reaction of the plants, promoting flowing of plant cell plasma membranes, promoting lignification of leaves, slowing down the dehydration effect of plant cell membranes, reducing the toxic effect of oxygen free radicals such as hydrogen peroxide and the like on plant cells, increasing the leaf thickness, increasing the fruit tree yield and quality and reducing the loss of leaf moisture and nutrition.

The invention relates to a leaf fertilizer formula capable of prolonging the green period of vertical greening plants. The formula comprises the following components in parts by weight: 1-3 parts of ammonium sulfate, 2-4 parts of ammonium phosphate, 1-3 parts of potassium sulphate, 0.4-0.8 part of calcium chloride, 0.2-0.5 part of sodium decaborate, 0.2-0.6 part of zinc nitrate, 0.2-0.5 part of magnesium oxide, 1-2 parts of ammonium ferrous sulfate, 0.2-0.6 part of copper sulfate pentahydrate, 0.2-0.6 part of sodium molybdate, 0.1-0.4 part of chlormequat chloride, 0.5-2 parts of chitosan, 1-3 parts of sugar alcohol and 79-92 parts of deionized water. The formula provided by the invention is used for leaf fertilizer compensation of vertical greening plants Sedum sarmentosum and sedum lineare, and the application period is 20 days. The formula is characterized in that the formula not only can supplement nutrients required by plant growth, but also can prolong the green period of the vertical greening plants by 20-30 days.

Provided is a crop frost damage prevention fertilizing method, specifically comprising the followings: (1) a week before autumn early frost, using an atomizer to spray clear water once on plant leaf surfaces, if the weather is rainy, spraying water being not needed, an objective being humidifying plant leaf surfaces and making plant water content increased; (2) the second day after spraying water, using a plant antifreezing solution to uniformly mix with water according to proportion of weight ratio of 1 to 80, atomizing on plants at 6-8 o' clock; after sunset in the afternoon, atomizing on the plants again; if in a rainy day, spraying in the second day after the weather clears up; (3) after a week, spraying once respectively in the morning and evening, to enhance the plants, so the antifreezing solution can adhere on the surfaces of the plants and form a layer of protection film; (4) after freeze injury occurs, spraying once again in the morning and evening, to rescue plant freeze injury.

The invention discloses slow-release, anti-drought and salt-tolerant lawn paper and a preparation method thereof. The method is characterized by comprising the following steps: using plant straws as main materials, processing the plant straws into gel through modification and ultrasonic treatment; adding nutrient solution into the gel for soaking to prepare nutrient absorbent resin, spraying the nutrient absorbent resin to paper, covering a layer of cotton pulp soft paper and drying, thereby obtaining the slow-release, anti-drought and salt-tolerant lawn paper. The lawn paper is suitable for any kind of soil, and can reduce the grass planting workload and also the conventional cumbersome process with soil fertilizers. The operation is simple, and the lawn paper is breathable and water-permeable and can not be bonded with the foundation. When the lawn paper is used, the grass planting environment is acidic with good ventilation, nutrients needed in each growth stage of the grass can be released slowly, and the grass with thick and strong roots can be obtained. Therefore, the lawn paper is suitable for growth of roof greening plants, lawn greening plants, greening plants for the saline-alkali soil and the like.

The invention provides a lawn grass fertilizer used in cold seasons wherein the effective constituents in the fertilizer include (by weight ratio) nitrogen 40-32, phosphorus pentoxide 18-14, potassium oxide 28-21, sulfur 16-11, magnesium 6-3, zinc 2-1, ferrum 5-3. By applying the fertilizer formula to grassplot, the construction period can be shortened by over ten days.

The invention provides a plant foliar bactericide with the antifreezing function, relating to the technical field of pesticides. The plant foliar bactericide is prepared from a bactericidal composition and an antifreezing composition in a ratio of 1:2, wherein the bactericidal composition comprises the following components in parts by weight: 5-15 parts of garlic powder, 10-30 parts of lime powder, 0.1-1 part of alkaloids from tea, 0.1-2 parts of capsaicin, 5-15 parts of calcium hypochlorite and 20-55 parts of hydrogen peroxide; the antifreezing composition comprises the following components in parts by weight: 5 parts of pine needles, 5 parts of dracaena sanderiana, 5 parts of cinnamomum camphora, 15 parts of chimonanthus praecox, 15 parts of holly, 1 part of wheat seedling, 3 parts of oxyspora paniculata, 0.05 part of antifreezing fluid for automobiles, 0.01 part of castor oil and 0.1 part of preservative. The plant foliar bactericide can be used for perennial plants in most parts of China, such as all the vegetables, fruit trees, flowers and plants and bonsai, can enhance the water retention and cold resistance of the plants, has relief and recovery effects on the plants suffering moderate and mild freezing injuries, adds chlorophyll, increases the yields and quality of crops and lengthens the green period.

The invention provides a use method of a tree anti-freezing spraying agent. The use method includes the use steps of A, diluting the tree anti-freezing spraying agent into 800-volume-fold liquid through water to be sprayed in late autumn and before plant dormancy; B, diluting the tree anti-freezing spraying agent into 600-volume-fold liquid through water to irrigate roots 3-7 days before frosting or cold waves; C, diluting the tree anti-freezing spraying agent into 1000-volume-fold liquid through water to irrigate the roots before and after plant transplanting; D, diluting the tree anti-freezing spraying agent through water by 50-80 volume folds to conduct trunk and branch brushing operation before winter. The steps are required to be conducted at the temperature between 3 DEG C and 8 DEG C. The tree anti-freezing spraying agent comprises 1-hydroxy ethylidene-1,1-diphosphonic acid, tolyl triazole sodium, polybutylene, fulvic acid potassium, benzoic acid, tea polyphenol, phosphoric acid triethanolamine, Chinese mosla herbs, ginger, chrysanthemum and burdock. The use method is simple in ratio, convenient to use, capable of greatly reducing cold injury loss of trees and good in anti-freezing effect.

The invention discloses an efficient compound growth regulator for garden vegetations and a preparation method of the efficient compound growth regulator. The efficient compound growth regulator is prepared from the following raw materials in parts by weight: 16-25 parts of urea, 6-11 parts of multi-effect triazole, 7-11 parts of fermented earthworm excrement, 3-5 parts of potassium dihydrogen phosphate, 4-7 parts of ferrous sulfate, 2-6 parts of sodium copper chlorophyllin, 15-21 parts of glycol, 7-12 parts of ferric citrate, 6-12 parts of methanol, 1-4 parts of a rooting agent, 3-8 parts of fatty acid, 1-7 parts of vitamin C, 2-8 parts of buckthorn and 2-8 parts of calcium lignosulphonate. According to a lawn greening and growth-promoting agent utilizing a scientific and environment-friendly constitution formula, a lawn can be rapidly greened, nutrients can be provided to the lawn, the rooting and sprouting of the lawn can be promoted, the growth situations of the lawn can be improved, and the draught resistance, disease resistance and salt-alkali resistance of plants can be enhanced; and furthermore, by utilizing a leaf surface spraying technique, a large number of manpower and money can be saved, so that the efficient compound growth regulator is high in coat performance and has relatively good economic benefits.

The invention provides an antifreezing agent, wherein the antifreezing agent comprises the following components in parts by weight: 2-5 parts of paraffin, 5-8 parts of vegetable oil, 4-8 parts of glycerinum, 3-9 parts of acetic acid, 5-9 parts of salicylic acid, 2-6 parts of tea polyphenol, 2-5 parts of glacial acetic acid, and 2-5 parts of a cooking liquor of bamboo leaves, ochre, Chinese mosla herb and pine needles. The antifreezing agent is simple in ratio and convenient to use, greatly reduces the loss caused by the freeze injury of a tree, and has an excellent antifreezing effect. The antifreezing agent activates the biological enzyme, stops the production of ice nucleating bacteria, breaks the icing activity of frozen protein, increases the heat, reduces the freezing point of a vegetable cell, promotes the flow of the cellular plasm, and improves the cell viability by 4-8 times. The water-retaining and drought-resisting abilities of the plant are improved, the freeze injury is alleviated, the antifreezing agent has an effect of alleviating and recovering the moderate and mild freeze injury plants, has no effect on the severe injury, and reduces the freezing point of the plant by 5-8 DEG C.

A fertilizer specially for lawn includes the following components: 35-75% of inorganic fertilizer, 25-35% of organic fertilizer, the total amount of the inorganic fertilizer being 1.5-2 times of the organic fertilizer; and balance of stuffing and adhesive. The inorganic fertilizer is a combination of urea superphosphate, calcium-magnesia phosphate fertilizer, potassium sulfate and potassium chloride, and the N, P and K are preferably mixed according to 9-11: 7-9: 5-7. THe organic fertilizer is mixture of dry animal stool and plant ash, wherein the animal stool accounts for 60-85% of the total amount of the organic fertilizer, and the balance of the plant ash. The invention also improves the granulation technology, namely rebuilding a granulating disc, adding accessories in the granulating disc, increasing the balling rate, the shape being fine and even; rebuilding a drier from inner heating into outer heating, secondary balling under a temperature of 60-65 DEG C; rebuilding a sieving system, besides sieving, polishing and milling, rounding and shaping, enveloping and coating with oil, fine machining the product, which is called third balling to make the product bright and round. The technology is a new breakthrough to the granulation technology at present.

The invention provides a preparation method of an antifreezing agent, wherein the preparation method comprises the following steps: A, mixing and uniformly stirring glycerinum, salicylic acid, tea polyphenol and glacial acetic acid, adding acetic acid into the mixture, choosing liquid paraffin, adding the paraffin into the mixture, stirring uniformly and standing; B, putting bamboo leaves, ochre, elsholtzia, pine needles into a closed container, adding an ethanol solution with the mass percent of 75%, infiltrating and steeping the active components for 12 hours, putting the active components into a percolator, adding the ethanol solution with the mass percent of 75%, soaking, starting to collect a percolate, heating the collected 75% ethyl alcohol percolate, and recovering ethyl alcohol so as to obtaining an extract; adding the extract into the vegetable oil, dissolving the extract into the vegetable oil, heating the vegetable oil dissolved with drugs to 40-50 DEG C, and sterilizing for use; C, fully mixing the mixture obtained in the step A and the mixture obtained in the step B, and detecting the ion content, wherein the contents of Cu, Fe, Mn, Zn and B are larger than or equal to 100 g / L. The preparation method is simple in coordination, convenient to use and good in antifreezing effect, and greatly reduces the loss caused by the freeze injury of a tree.

The invention discloses a lawn grass fertilizer used in warm seasons wherein the effective constituents in the fertilizer include (by weight ratio), nitrogen 48.7-40.3, phosphorus pentoxide 20.5-15.1, potassium oxide 34.6-28.4, magnesium 5.2-2.8, zinc 2.0-1.0, boron 0.7-0.4, molybdenum 0.2-0.1. Compared with the prior art, the beneficial effects of the invention include full nutrient content, reasonable nourishing proportion, and higher utilization efficiency of fertilizer.