Efficient fertilizer special for corn

Abstract

A disclosed efficient fertilizer special for corn is prepared as follows: uniformly mixing pond trench mud, oil shale ash, ferrous sulphate, monoammonium phosphate, manganese sulfate, potassium chloride, zinc sulfate, a magnesium-potassium sulfate fertilizer, ammonium molybdate and attapulgite powder, so as to obtain a material A; adding animal hair into a sulfuric acid solution for hydrolysis, adding proper amount of calcium bicarbonate to adjust the pH value of the hydrolysis solution to be 6.75-6.83, then adding carboxymethylcellulose sodium and stirring uniformly to obtain a mixed solution, adding sweet potato powder, urea, dicyandiamide powder and polyvinyl alcohol into the mixed solution, and uniformly mixing to obtain a material B; and spraying the material B to the continuously-rotated material A, and pelleting to obtain the efficient fertilizer special for corn. The efficient fertilizer special for corn is capable of improving the lodging resistant capability of corn and satisfies various elements demands by corn growth, and the release speed accords with different demands of corn on nutrition elements at all growth periods, and also the efficient fertilizer special for corn is capable of improving the soil physical and chemical properties and increasing soil fertility.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special high-efficiency corn fertilizer. Background technique [0002] Corn is the main food crop in my country. Corn needs a large amount of fertilizer. Scientific and rational fertilization is an important aspect of high-quality, high-yield, and efficient development of corn production. After ordinary fertilizers are applied to the soil, due to the short fertilizer effect period, topdressing is required in the later stage. Spring corn areas in my country generally start sowing at the end of April and harvesting in October, with an average yield of 500 kg. However, with the increase in fertilization in recent years, although the yield has increased, the soil fertility has declined at the same time, the soil has hardened, and the bottom of the plow is getting worse. Shallow, corn lodging is very serious in the late stage. Although the country strongly advocates the use of or...

AI Technical Summary

Problems solved by technology

Spring corn areas in my country generally start sowing at the end of April and harvesting in October, with an average yield of 500 kg. However, with the increase in fertilization in recent years, although the yield has increased, the soil fertility has declined at the same time, the soil has hardened, and the bottom of the plow is getting worse. Shallow, corn lodging is very serious in the late stage. Although the country strongly advocates the use of organic fertilizers to improve the soil and improve the plow layer environment of the soil, but because organic fertilizers are troublesome to use, the amount of application is large, and the cost of labor input is too high, farmers do not use them now. They are willing to use organic fertilizers, so farmers now use a large amount of inorganic fertilizers. It is precisely because of the extensive use of inorganic fertilizers that the soil is compacted and the soil structure is destroyed.