Biological source nematode prevention medium trace element granular fertilizer and preparation method thereof

Abstract

The invention discloses a biological source nematode prevention medium trace element granular fertilizer which comprises the following components in percentage by weight: 0.5-2.0 percent of compound nematode prevention components, 5.0-50 percent of medium elements, 20-70 percent of trace elements and 8.0-12 percent of adhesive, wherein the compound nematode prevention components refer to one or two of abamectin and bacillus thuringiensis. The medium trace elements selected from the abamectin and bacillus thuringiensis serve as carriers, benzene, xylene and other toxic and harmful solvents are reduced, soil pollution and benzene residues are avoided, damage to crop root systems is alleviated, the insecticidal and insect prevention effects are obvious, the harm of nematode is greatly reduced, and an excellent soil environment is provided for crop growth. Moreover, drying operation is not needed in the granulating process, the characteristic of stable water absorption of each material is fully utilized, the energy consumption is reduced, greenhouse gases are not produced, three wastes are not discharged, the use is convenient and high-efficiency, loss of nutrients is reduced, the yield and quality of agricultural products are improved, and the income of farmers is increased.

Description

technical field [0001] The invention relates to a granular fertilizer and a preparation method thereof, in particular to a biological source nematode-resistant trace element granular fertilizer and a preparation method thereof. Background technique [0002] Compound fertilizers have played an important role in agricultural development, increasing production and saving production costs, but the elements needed for crop growth are not limited to nitrogen, phosphorus, and potassium. Large amounts of nitrogen, phosphorus, and potassium will gradually reduce the trace elements in the soil. Directly affect the absorption of nitrogen, phosphorus and potassium by crops, resulting in the lack of supplement of nitrogen, phosphorus, potassium and trace elements required by crops, and nutritional imbalance in plants, resulting in the decline of crop quality and the occurrence of deficiency syndrome. [0003] In recent years, only nitrogen, phosphorus, and potassium are applied to plots ...

AI Technical Summary

Problems solved by technology

In particular, due to the rapid expansion of the area of ​​vegetables in protected areas in China, uninterrupted planting throughout the year has resulted in a large accumulation of nematodes and other pathogenic microorganisms, resulting in reduced vegetable production, seriously affecting the quality and export of vegetables, and seriously threatening the production of vegetables in protected areas.

[0005] How to improve the level of trace elements in the soil, reduce the amount of macronutrient fertilizers and pesticides, and restore the soil ecological environment; how to develop a kind of biosource nematode-resistant microelement granular fertilizer, change the physical and chemical environment of the soil, and improve the biochemical activity of the soil, Improving the utilization rate and application effect of fertilizers and improving the soil disinfection effect is an urgent problem to be solved at present; however, there are no relevant reports on the use of microelement granular fertilizers in biological source control and nematode killing