53results about How to "Improve acidic environment" patented technology

The invention belongs to the tea tree planting field, and specifically relates to a planting method being able to reduce fluorine content in tea leaves. The planting method being able to reduce fluorine content in tea leaves is characterized by applying a root fertilization method to cultivation of low fluorine spring tea, before the end of December in winter in the first year, ditching with a depth of 15-20 cm and a width of 9-10 cm by using a water drip line of tea plant rows, and applying the root selenium fertilizer to the soil in the ditches; and applying a leaf surface spraying method tocultivation of low fluorine summer and autumn tea, before picking the summer and autumn tea in the second year, trimming the tea trees, and before and after germination of the tea trees, spraying theleaf surface selenium fertilizer to leaf surfaces of the tea trees uniformly. The planting method being able to reduce fluorine content in tea leaves has the advantages of changing the occurrence form of the fluorine in the soil through biochar and humic acid, reducing the absorption of fluoride ions by the roots of the tea trees, using the enzyme bacteria to jointly improve the acidic environment of the soil at the same time, and promoting selenite to exist in the state of anions so as to enable the roots of the tea trees to preferably absorb the selenite to achieve the aim of comprehensively controlling reduction of the fluorine content of the tea leaves.