Flue-cured tobacco base fertilizer capable of reducing application amount of chemical bactericide pesticide as well as preparation method and application of flue-cured tobacco base fertilizer

Abstract

The invention belongs to the technical field of agricultural fertilizers, and relates to a flue-cured tobacco base fertilizer capable of reducing the application amount of a chemical bactericide pesticide, and a preparation method and application of the flue-cured tobacco base fertilizer. The flue-cured tobacco base fertilizer comprises the components in parts by weight on a dry basis: 0.1-1 part of tobacco seed oil, 5-40 parts of tobacco seed meal, 5-150 parts of sunflower straw carbide, 5-40 parts of three-section type converted weathered coal, 0.01-1 part of a microbial agent, 20-50 parts of potassium nitrate, 5-50 parts of a calcium magnesium phosphate fertilizer, 0-40 parts of a silicon calcium potassium magnesium fertilizer, 0-60 parts of mineral potassium and 0-16 parts of potassium sulfate. The prepared flue-cured tobacco base fertilizer is used for reducing the application amount of chemical bactericides used for preventing and treating black rot, black shank and bacterial wilt of tobacco roots, the application amount of the chemical bactericides can be reduced by 50%-100%, meanwhile, soil acidification and hardening cannot be caused, the properties of the acidified and hardened soil are gradually improved, and the morbidity of root and stem diseases is reduced; therefore, pesticide residues are reduced, and agricultural product safety is improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and relates to a flue-cured tobacco base fertilizer, in particular to a flue-cured tobacco base fertilizer which reduces the application amount of chemical fungicides and pesticides, and a preparation method and application thereof. Background technique [0002] Improper fertilization can easily cause soil acidification and compaction, which will lead to a series of problems such as aggravation of flue-cured tobacco rhizome diseases, excessive use of chemical fungicides, and excessive pesticide residues in tobacco leaves. In tobacco-producing areas, improper fertilization is mainly caused by improper fertilizer structure, excessive application of potassium sulfate, and unknown raw materials for tobacco-specific fertilizer formulations. [0003] Improper fertilizer structure is reflected in the low input of organic matter and microorganisms, and the long-term excessive single use ...

AI Technical Summary

Problems solved by technology

This kind of special fertilizer that uses acidic raw materials as formula components in a large proportion, if it continues to be used, the acidification and compaction of the soil will become more and more severe, the root and stem diseases will become more and more serious, and the phenomenon of excessive pesticide residues will inevitably be difficult. be effectively controlled

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