Compound fertilizer having growth promotion and high slow-release properties and used for rice planting as well as preparation method of compound fertilizer

Abstract

The invention discloses compound fertilizer having growth promotion and high slow-release properties and used for rice planting. The compound fertilizer is prepared from raw materials as follows: ammonium nitrate, monopotassium phosphate, urea, urea phosphate, calcium superphosphate, ammonium dihydrogen phosphate, potassium sulfate, magnesium sulfate, potassium nitrate, amino sodium dicarboxylate, Trichoderma, yeast powder, straw fermentation bacteria, cellulase, potassium mineral powder, rare earth, low-rank coal, silico-calcium powder, turf powder, fly ash, pine sawdust, kaolin, rice hull powder, poultry manure, maize straw, blue-green alga powder, dolomite, diatomite, calcite, humic acid, lignin, EDTA (ethylene diamine tetraacetic acid) chelate zinc, amino acid chelated molybdenum, dicyandiamide, phosphoric triamide and a modified slow-release agent. The invention further discloses a preparation method of the compound fertilizer having growth promotion and high slow-release properties and used for rice planting. The compound organic fertilizer has outstanding slow-release performance and can effectively increase the rice yield and improve the rice quality.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a compound fertilizer with growth-promoting and high slow-release performance for rice planting and a preparation method thereof. Background technique [0002] Rice is a kind of herbaceous Oryza genus, and it is also the most important and oldest kind of grain in Oryza genus. It is also called Asian cultivated rice, and it can be said to be rice in simple terms. Rice likes high temperature, high humidity, and short sunshine, and is not strict with soil, but paddy soil is the best. Fertilization is an important step in the process of growing rice. At present, in the process of domestic rice planting and fertilization, there are partial application of chemical fertilizers and imbalances in various nutrients, which cannot meet the nutrients required by each stage of the rice production process. At the same time, the process of nitrogen fertilizer application is likely to cause ...

AI Technical Summary

Problems solved by technology

At present, in the process of domestic rice planting and fertilization, there are partial application of chemical fertilizers and imbalances in various nutrients, which cannot meet the nutrients required by each stage of the rice production process. At the same time, the process of nitrogen fertilizer application is likely to cause excess growth of rice seedlings and easy lodging , serious problems such as various diseases and insect pests

[0003] Excessive nitrogen release at the initial stage of fertilizer application will result in volatilization and leaching, which will not only cause losses, but also be detrimental to the growth of rice seedlings. Many nitrogen fertilizers have such problems, but most research data only focus on the regulation of excessive nitrogen release from fertilizers. and inhibition, while ignoring that most organic and inorganic compound fertilizers also have such problems

Especially when the compound fertilizer made of fermented organic matter and inorganic nitrogen fertilizer is damp or applied to the soil, urine enzyme will quickly become active and release ammonia nitrogen. At the same time, the action of digestive bacteria will also convert nitrogen to nitrate nitrogen, which will pollute the environment. larger