Special higher-utilization-ratio environment-friendly coated fertilizer for blueberries and preparation method thereof

Abstract

The invention discloses a special higher-utilization-ratio environment-friendly coated fertilizer for blueberries. The invention is characterized in that the fertilizer is prepared from the following raw materials in parts by weight: 1-3 parts of rhizobia, 1-2 parts of Azotobacter chroococcum, 1-3 parts of Bacillus megatherium, 34-37 parts of soybean meal, 30-34 parts of rape seed cake, 45-50 parts of clover stover, 1-2 parts of borax, 3-5 parts of bentonite, 7-11 parts of sodium humate, 4-6 parts of castor oil, 3-5 parts of diglycol, 2-5 parts of vitrified microbead, 14-20 parts of hydroxypropyl methyl cellulose, 4-7 parts of gypsum, 7-9 parts of effective microorganisms and 9-12 parts of soil conditioner. The fertilizer solves the problem of low utilization ratio of nitrogen; the nitrogen fixation fungus added in the fertilizer can reduce the application amount of the nitrogen fertilizer, and lowers the ecological environment for land pollution protection; proper proportions of phosphate fertilizer and potassium fertilizer are added according to the fertilizer demand characteristics of blueberries to satisfy the nutrients required in the whole blueberry growth period; the coating technique is utilized to enable the fertilizer to release nutrients slowly for a long time and implement balanced wants and needs of the blueberries, thereby avoiding the phenomenon of seedling burning due to overfertilization; and the fertilizer can promote blossoming and fruiting of the blueberries and enable the blueberries to come into the market in advance.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to an environment-friendly coated fertilizer specially used for blueberries to improve the utilization rate of fertilizers and a preparation method thereof. Background technique [0002] Coated fertilizers are also called coated fertilizers and film fertilizers. Fertilizers made of quick-acting fertilizer granules wrapped with semi-permeable or impermeable film substances. Film-forming substances include plastics, resins, paraffin, polyethylene and elemental sulfur. The purpose of the coating is to slowly release the quick-acting nutrients in the coated fertilizer after it is applied to the soil, so as to prolong the fertilizer effect. The release rate depends on the type of coating, thickness, particle size, fertilizer solubility, soil temperature, soil water content, and soil microbial activity. It is suitable for crops with high economic value, long growth period, large amount of fe...

AI Technical Summary

Problems solved by technology

[0003] my country is a large agricultural country, but the average per capita land is very small. In order to meet the existing land supply for people's living needs and increase the output of economic crops, people apply a large amount of nitrogen fertilizer to the land to increase crop output. In the initial stage of use, my country's agricultural industry The value-added effect is obvious, but now due to the long-term application of large amounts of nitrogen fertilizers, the land salinization is serious. The reason is that the effective utilization rate of chemical fertilizers is very low, and only a small part is absorbed by plants, and the rest is left in the land.