Ecological soil conditioner capable of improving acid soil and preparation method

Abstract

The invention belongs to the technical field of soil improvement and particularly relates to an ecological soil conditioner capable of improving acid soil and a preparation method. The ecological soil conditioner comprises raw materials in parts by weight as follows: 30-60 parts of carbonized distillers' grains, 10-20 parts of industrial and agricultural waste, 10-15 parts of sargassum, 10-15 parts of water hyacinth, 5-10 parts of plant ash, 5-15 parts of nano-modified clay, 5-10 parts of sodium alginate, 1-10 parts of tamarind polysaccharide gum, 1-5 parts of chelated secondary elements and trace elements and 0.1-3 parts of graphene oxide. The ecological soil conditioner can regulate the pH value of the soil, promote granular structure formation of the soil, improve the physical and chemical structures of the acid soil, increase organic matter content of the soil, improve the moisture and fertilizer retention capacity, improve physical characteristics of the soil, creates a good ecological environment for plant growth, is excellent, meets the organic and pollution-free agricultural development trend and has larger popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to an ecological soil conditioner for improving acidic soil and a preparation method. Background technique [0002] Acidic soil is soil with a pH less than 7. In recent years, with the unreasonable large-scale application of inorganic chemical fertilizers, the area of ​​acidified soil has increased year by year, and the degree of soil acidification has accelerated significantly. At the same time, due to the influence of continuous planting mode, climate and other factors, the area of ​​acidic soil in my country has reached 200 million hectares. . Soil acidification has the following effects on crop production: first, it destroys the soil structure, causes compaction, reduces soil permeability and microbial activity, and makes the soil poor; second, it leads to an increase in the content of aluminum ions in the soil, causing crops to The yield is reduced, the qu...

AI Technical Summary

Problems solved by technology

[0007] In summary, the current traditional application of lime in large quantities or for a long time in acidic soil will not only cause soil compaction, but also easily cause the imbalance of soil calcium, potassium, magnesium and other elements, resulting in crop yield reduction. Change local soil acidity, after a period of cultivation, the soil quickly becomes acidic again, and the improvement effect lasts for a short time

The researchers found that the application of organic fertilizers to improve acidic soil has the advantages of good use effect and no secondary pollution. However, there are still problems such as high cost of improvement and inconvenient operation in the application of organic fertilizers to improve acidic soil, and large-scale promotion and application have not yet been realized.