Special base fertilizer for spring corn and preparation method thereof

Abstract

The invention provides a special base fertilizer for spring corn. The special base fertilizer is prepared from the following raw materials expressed in weight parts: 10 to 20 of oil tea cakes, 5 to 6 of coated urea, 20 to 25 of ammonium dihydrogen phosphate, 18 to 22 of coated potassium chloride, 20 to 30 of bentonite, 0.2 to 0.5 of ferrous sulfate, 1 to 2 of zinc sulfate, 0.1 to 0.3 of ammonium molybdate, 10 to 12 of attapulgite, 5 to 7 of brown coal, 3 to 4 of neem leaf powder, 3 to 4 of euphorbia powder, 10 to 15 of bagasse, 10 to 15 of potash feldspar, 18 to 22 of livestock and poultry manures, 3 to 4 of carboxymethyl cellulose, 15 to 20 of 30% sulfuric acid, 5 to 10 of lime, 10 to 15 of bone meal and 4 to 6 of liquid paraffin. A preparation method for the fertilizer comprises the following steps: carrying out acidolysis on hairs to produce amino acid; producing amino acid chelated micro and medium fertilizer liquid; sintering potash feldspar to prepare a fertilizer carrier; fermenting an organic fertilizer; mixing a nitrogen-phosphorus-potassium fertilizer with the carrier, the organic fertilizer and a botanical pesticide; spraying the amino acid chelated micro and medium fertilizer liquid; carrying out granulation; and finally carrying out coating with the liquid paraffin. The fertilizer provided by the invention can obviously improve the utilization rate of fertilizer efficiency, exerts a slow release effect, reduces a fertilizer application amount and pesticide residue and improves the output and quality of the spring corn.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a special fertilizer for spring corn base fertilizer and a preparation method thereof. Background technique [0002] my country is a large agricultural country. Chemical fertilizers and pesticides play a very important role in agricultural production. With the improvement of people's living standards and health awareness, people attach great importance to the safety of agricultural products, and the demand for pollution-free and green food is increasing year by year. . [0003] There are many types of fertilizers currently used for spring corn planting, among which the special fertilizer for spring corn is mostly NPK compound fertilizer available on the market, which is mainly composed of three inorganic elements N, P, and K, which can meet the growth needs of corn in a short time . However, long-term use will destroy the soil aggregate structure, easily cause soil compac...

AI Technical Summary

Problems solved by technology

However, long-term use will destroy the soil aggregate structure, easily cause soil compaction and soil hardening, thus affecting the growth of corn, and the promotion effect on corn growth is not obvious

At the same time, although pure organic fertilizer is rich in organic matter, it releases nutrients slowly, absorbs slowly by corn, and has low fertilizer efficiency. The effective balance between various effective nutrients cannot be achieved.

[0004] At present, the prevention and control of spring corn pests and diseases is mainly made of chemically synthesized pesticides and toxic chemical raw materials, applied to the soil or on agricultural corn, and used for a long time year after year. A large number of pesticides and fertilizers have caused the pests to develop resistance. Pollution of water sources, soil and agricultural corn, decline in the quality of agricultural products, and excessive pesticide residues seriously affect people's physical and mental health and the competitiveness of my country's corn in the international market