Special fertilizer for watermelon base fertilizer as well as preparation method of special fertilizer

Abstract

The invention provides a special fertilizer for a watermelon base fertilizer. The special fertilizer is prepared by the following raw materials by weight: 10-20 parts of oil tea cakes, 5-6 parts of coated urea, 20-25 parts of ammonium dihydrogen phosphate, 18-22 parts of coated potassium chloride, 20-30 parts of bentonite, 0.2-0.5 parts of ferrous sulfate, 1-2 parts of zinc sulfate, 0.1-0.3 part of manganese sulfate, 10-12 parts of attapulgite, 5-7 parts of plant ashes, 3-4 parts of neem bark powders, 3-4 parts of bone powders, 10-15 parts of bagasse, 10-15 parts of potassium feldspar, 18-22 parts of municipal sludge, 3-4 parts of carboxymethylcellulose, 15-20 parts of 30% of sulfuric acid, 5-10 parts of limes, 10-15 parts of animal hairs and 4-6 parts of liquid paraffin. A preparation method for the special fertilizer comprises the steps as follows: carrying out acidolysis on the hairs to obtain amino acid; generating an amino acid chelated micro or medium fertilizer solution; sintering the potassium feldspar to prepare a fertilizer carrier; fermenting by an organic fertilizer; mixing a nitrogen-phosphorus-potassium mixed fertilizer and the carrier with the organic fertilizer and a plant insecticide; spraying the amino acid chelated micro or medium fertilizer solution; granulating; and coating with the liquid paraffin at last. According to the special fertilizer, the utilization rate of fertilizer efficiency can be remarkably increased, the slow release effect is achieved, the fertilizing amount is reduced, and the pesticide residues are reduced, so that the yield of watermelon is increased and the quality of watermelon is increased.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a special fertilizer for watermelon 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 watermelon cultivation, among which the special fertilizer for watermelon mostly adopts NPK compound fertilizer available in the market, which is mainly composed of three inorganic elements N, P, and K, which can meet the growth needs of watermelon in a short time. However, long-term use will damage the soil aggregate structure, which will easily...

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 watermelon, and the promotion effect on watermelon growth is not obvious

At the same time, although simple organic fertilizers are rich in organic matter, they release nutrients slowly, absorb watermelons slowly, and have low fertilizer efficiency. Effective balance of various effective nutrients cannot be achieved.

[0004] At present, the prevention and control of watermelon pests and diseases is mainly made of chemically synthesized pesticides and toxic chemical raw materials, which are applied to the soil or on agricultural watermelons, and used for a long time year after year. Water source soil and agricultural watermelons cause pollution, the quality of agricultural products declines, and pesticide residues exceed the standard, seriously affecting people's physical and mental health and the competitiveness of my country's watermelons in the international market