Anti-disease synergistic Guizhou sterile acidified yellow soil conditioner and preparation and use method thereof

Abstract

The invention discloses an anti-disease synergistic Guizhou sterile acidified yellow soil conditioner and a use method thereof. The conditioner is prepared from, by weight, 25-35 parts of vinasse-based biochar, 10-20 parts of yellow phosphorus slag, 5-10 parts of calcium magnesium phosphate, 10-20 parts of potassium humate, 10-20 parts of rapeseed cake powder, 1-5 parts of alkali lignin, 1-5 parts of wood vinegar and 5-10 parts of microelement. Different amounts of Guizhou sterile acidified soil conditioners are applied according to different pH values. The conditioner is simple in preparation method, raw materials can be obtained locally and are easy to obtain, and cost and price are low. Soil hardening caused when a single conditioner is used is prevented. The granular structure of soil is increased, and soil quality is improved. The C / N ratio of the soil can also be adjusted, the problems of continuous cropping obstacles, soil fertility reduction and the like caused when people get much from the soil but give little to soil for a long time are solved, the activity of beneficial microorganisms of the soil is improved, and the virtuous cycle of the soil is benefited.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a disease prevention and synergistic Guizhou barren acidified yellow soil conditioner and a preparation and use method thereof. Background technique [0002] Guizhou is a low-mountain and hilly area with thin soil layers and severe karst geology. Heavy rainfall leads to serious soil leaching, which can easily cause nutrient accumulation and large-scale loss after fertilizer application. This has great impact on agricultural production. Said it was a big problem. Yellow soil is the largest zonal soil in Guizhou Province, with a total area of ​​7.384 million hm2, accounting for 46.4% of the total soil area of ​​the province. At present, the area of ​​strongly acidic yellow soil with a pH less than 5.5 accounts for 41.2% of the total area of ​​yellow soil, and the acid (aluminum toxicity) and thinness (nutrient deficiency and low availability) have become one of the main f...

AI Technical Summary

Problems solved by technology

[0006] All of the above are simple application of one or two materials, and their functions and functions are single.

This method of improvement aimed solely at reducing soil acidity requires a large amount of soil amendment per unit area, mostly dozens of tons per hectare, which results in high application costs and labor, and can easily cause soil nutrient imbalance; The problems of soil acidification and its derived soil fertility and soil-borne diseases lack comprehensive control functions; the existing acidified soil improvement has not stopped and controlled the origin of soil acidification, and it is not a cure for the symptoms

However, there is no systematic exploration of different improvement methods for different soil properties, crops and acidification causes