Growth-promoting and insect-killing slow release fertilizer and preparation method thereof

Abstract

The invention discloses a growth-promoting and insect-killing slow release fertilizer and a preparation method thereof. The growth-promoting and insect-killing slow release fertilizer comprises a composition A and a composition B, wherein the composition A contains urea, calcium superphosphate, fur, feather, carbon black, polypropylene glycol, diammonium phosphate, potassium chloride, modified plant ash, bamboo charcoal, radix stemonae powder, dry silkworm excrement, gelatin, zinc sulfate, a micronutrients fertilizer, ferrous sulfate and nitrogen-fixing bacteria; and the composition B contains municipal sludge, sodium diacetate, glycerol, amino acid, calcium powder, zanthoxylum planispinum, radix euphorbiae lantu powder, ammonium molybdate, liquid paraffin and silicate potash fertilizer. The feather and the like are hydrolyzed with acid to generate the amino acid, and then secondary elements and trace elements are chelated, a chelating structure is increased due to the adoption of carboxymethylcellulose, thus invalid release of the secondary elements and the trace elements is reduced. According to the growth-promoting and insect-killing slow release fertilizer, the fertilizer efficiency utilization rate can be remarkably increased, once fertilizing and slow effective release can be realized, fertilizing frequency can be reduced, fertilizer cost is lowered, and economic benefit is increased.

Description

technical field [0001] The invention relates to the field of organic fertilizer manufacturing, in particular to a slow-release fertilizer for promoting growth and killing insects and a preparation method thereof. Background technique [0002] Lettuce is an annual or biennial herbaceous plant of Compositae. It likes cold and humid climate and has strong adaptability. It is widely cultivated in my country and has many varieties. Guoyang special lettuce is a kind of pointed leaf lettuce. Dried moss not only contains high protein, but also contains iron, calcium, magnesium and other minerals. It is rich in nutrition. It is one of the famous and precious special vegetable varieties in my country. The products are not only sold well in major domestic cities, but also exported to Japan, the United States and Southeast Asia. Region, well-known at home and abroad; special lettuce (Guoyang dried moss) is mainly distributed in Yimen Town, Guoyang County, Anhui Province and the adjacent Q...

AI Technical Summary

Problems solved by technology

[0002] Lettuce is an annual or biennial herbaceous plant of Compositae. It likes cold and humid climate and has strong adaptability. It is widely cultivated in my country and has many varieties. Guoyang special lettuce is a kind of pointed leaf lettuce. Dried moss not only contains high protein, but also contains iron, calcium, magnesium and other minerals. It is rich in nutrition. It is one of the famous and precious special vegetable varieties in my country. The products are not only sold well in major domestic cities, but also exported to Japan, the United States and Southeast Asia. Region, well-known at home and abroad; special lettuce (Guoyang dried moss) is mainly distributed in Yimen Town, Guoyang County, Anhui Province and the adjacent Qiaocheng District, Bozhou City, with a perennial cultivation area of ​​nearly 20,000 hectares, accounting for the total area of ​​special lettuce used for dried moss in the country In recent years, lettuce growers have one-sidedly pursued high yields, applied nitrogen or nitrogen and phosphorus fertilizers, and applied no or less potassium fertilizers, resulting in an imbalance in the ratio of nitrogen, phosphorus and potassium, resulting in a sharp drop in lettuce production and poor quality of dried moss

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