A flue-cured tobacco fertilization method capable of effectively preventing and controlling tobacco planting soil diseases and insect pests

Abstract

The invention discloses a flue-cured tobacco fertilization method capable of effectively preventing and controlling tobacco planting soil diseases and insect pests. Firstly, the tobacco field is prepared, and undecomposed organic fertilizer is evenly spread on the ridge line of the tobacco field, and the spreading amount is 2000-5000kg / 667m 2 , spread with a thickness of 10-20cm, then cover the undecomposed organic fertilizer with soil to a ridge shape, cover with plastic film and seal it tightly with fine soil, ferment and decompose for 20-40 days, and then remove the film and ventilate for 1-3 days. The invention can kill black shank disease bacteria, root black rot disease bacteria and their spores, root-knot nematodes and their eggs in the plow layer soil by using high temperature during the decomposition process of organic fertilizer, effectively preventing black shank disease, root The occurrence of black rot and root-knot nematode; while killing the pests and diseases, the process of applying basal fertilizer to flue-cured tobacco is completed without additional agricultural operations; the raw materials of undecomposed organic fertilizers have the advantages of good air permeability, and their Fertilizers can improve soil physical and chemical properties.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco planting, and in particular relates to a flue-cured tobacco fertilization method capable of effectively preventing and controlling soil diseases and insect pests in tobacco planting. Background technique [0002] Currently in the cultivation of flue-cured tobacco, black shank, root black rot, and root-knot nematode are common diseases and insect pests that endanger the normal growth of flue-cured tobacco. Among them, black shank disease is caused by Phytophthora nicotiana, a facultative parasite that likes high temperature and high humidity. There are water-soaked black spots at the base of the plant stem, which can expand to more than ten centimeters above the ground, causing the leaves of the whole plant to suddenly wither and then die, and the blackleg disease has a strong ability to spread, and the disease is severe during the transplanting period of tobacco seedlings and the long-t...

AI Technical Summary

Problems solved by technology

[0003] Chemical control is one of the main ways to control flue-cured tobacco diseases and insect pests. However, the use of chemical agents will not only enhance the resistance of diseases and insect pests, but also lead to the deterioration of cultivation environment conditions, affecting the physical and chemical properties of soil and the yield and quality of flue-cured tobacco.

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