Fertilizer application method for inhibiting continuous cropping disease of tomato and cotton in dry district

Abstract

The invention relates to a fertilizer application method for inhibiting continuous cropping disease of tomato and cotton in dry district, which comprises a basic fertilizer application step and a top application step. The basic fertilizer is prepared by natural mineral powder and chemical fertilizer, the mineral powder and the chemical fertilizer are uniformly mixed according to a mass ratio of 55 to 70 percent: 30 to 45 percent to be used as the basic fertilizer, 50 kilograms of basic fertilizer are applied per Mu, subsoiling is carried out during the autumn ploughing in the first year, and the application depth of the fertilizer is 25cm; about 4 to 6 times of top application is carried out for plants by adopting a drop irrigation way at different growth periods of tomato and cotton, five kilograms of the fertilizer are applied at the flowering period, the topdressing quantity is gradually increased every time, and the final general quantity of the fertilizer is 50 kilograms per Mu. After the technology is applied to the tomato, the red period of the tomato can be advanced for five days, the yield of the tomato is improved by 20.6 percent in a small field trial, and bacteria speck disease, early blight disease and cotton bollworm of the tomato can be simultaneously prevented. After the technology is applied to the continuous cropping cotton, the greensickness of the cotton can be effectively controlled, budding period, bolling period and boll opening period of the cotton can also be promoted to be earlier than expected, the breeding period can be shortened, the final yield can be increased by 4.3 percent, and the disease-prevention and yield increase effect on the cotton can be better by continuously adopting the technology for multiple years.

Description

technical field [0001] The invention belongs to the technical field of intensive agricultural production, and in particular relates to a fertilization method for suppressing continuous cropping diseases of tomato and cotton in arid areas. To overcome continuous cropping barriers for processing tomato and cotton in arid regions. Background technique [0002] High-intensity use of soil, and large or even excessive fertilization that does not match new crop varieties have caused serious health problems in many cultivated soils. The first is soil physical degradation, including structural deterioration, shallowing of cultivated soil, and degradation of water, vapor, and heat regulation capabilities; the second is soil chemical degradation, including nutrient imbalance, soil acidification, secondary salinization, and soil pollution; and the third is soil pollution. The degradation of biological functions includes the reduction of soil biodiversity, the reduction of beneficial or...

AI Technical Summary

Problems solved by technology

In modern agriculture, especially under intensive conditions, the degradation of soil fertility quality and soil environment quality is mainly due to the degradation of soil self-repair function under the conditions of excessive fertilization and spraying pesticides. Elemental imbalance, soil nutrient conversion ability declines

At the same time, under the condition of unbalanced nutrient height and soil quality deterioration, the ability of plant roots to grow and absorb water and nutrients drops sharply, leading to problems in plant health, and the ability to resist diseases, insect pests and other adversities declines, resulting in obvious degradation of farmland ecosystems