Soil conditioner suitable for southern red soil and production method thereof

Abstract

The invention provides a soil conditioner suitable for southern red soil and a preparation method, and belongs to the technical field of soil conditioner preparation and utilization. The soil conditioner is composed of, by mass, 12.5-25% of bio-active humic acid, 5-11.5% of chicken manure, 4-12% of tobacco waste, 2.5-7.5% of corn straw, 3-9% of rice straw, 5-11.5% of grass coals, 5-12.5% of sucrose filter mud, 1-6% of calcium superphosphate, 1-4.5% of urea, 2-6% of potassium sulphate, 9-17.5% of calcium magnesium phosphate, 0.5-2.5% of manganese sulfate, 0.5-2.5% of ferrous sulfate, 0.5-3% of zinc sulfate, 0.5-2.5% of ammonium molybdate, 2.5-7.5% of boric acid, 0.5-4% of BFA microbial agents and 1.5-4% of bentonite, and the sum of all the components is 100%. The soil conditioner takes the organic nutrient humic acid as the main component and contains a large quantity of readily oxidized organic matter, active groups and exchangeable magnesium, therefore, the physical and chemical properties of the acid soil can be obviously improved, comprehensive and reasonable nutrients are supplied to crops, the crop growth is promoted, the crop quality and yield are improved, the arable soil quality can be comprehensively improved, and the conservation soil fertility is improved.

Description

technical field [0001] The invention belongs to the technical field of soil conditioner preparation and utilization, and in particular relates to a soil conditioner suitable for southern red soil and a production method thereof. Background technique [0002] Red soil spreads across thirteen provinces (regions) in the south. It is one of the main soil types in southern my country, with a total area of ​​about 5.69 million hectares, accounting for 6.5% of the total soil area in my country. It is an important production area of ​​food crops and economic crops in China. Red soil is in my country It plays an important role in agricultural development and ecological environment construction. However, in recent years, the red soil ecosystem is facing the following severe problems: First, due to the frequent use of clear tillage in cultivation, the consumption of soil organic matter is relatively large, and at the same time, it cannot be compensated in time, resulting in the reductio...

AI Technical Summary

Problems solved by technology

However, in recent years, the red soil ecosystem is facing the following severe problems: First, due to the frequent use of clear tillage in cultivation, the consumption of soil organic matter is relatively large, and at the same time, it cannot be compensated in time, resulting in the reduction of organic matter in red soil, the loss of mineral nutrients, and the loss of soil nutrients. Fertility decreases, effective water storage and permeability are poor, soil plow layer becomes shallow, and some red soil areas cannot even be cultivated; secondly, due to natural weathering and leaching, the barrenness of red soil increases and fertility declines, N, P, K Insufficient nutrient supply and lack of various medium and trace elements lead to an imbalance of soil nutrients and cannot meet the needs of crop growth; third, due to unreasonable chemical fertilizer application and acid deposition, the acidification process of red soil is accelerated, which affects the plant's ability to respond to potassium, ammonium, At the same time, the concentration and activity of elements such as aluminum and manganese that have toxic effects on crops are enhanced; finally, due to the excessive input of chemical fertilizers and pesticides in agricultural production, heavy metals, salts, and The content of arsenic, selenium, fluorine compounds, phenols, cyanide, etc. increases, soil pollution intensifies, and affects the normal physiological activities of crops

At present, in agricultural production, lime and humic acid are often used to improve the acidic soil in the south, but long-term or large-scale use of lime will cause soil compaction, and it will also cause imbalances in the balance of calcium, magnesium, potassium and other elements in the soil, which will also lead to crop yield reduction

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