Modified-rice-straw soil modifier for desertificated soil

Abstract

The invention discloses a modified-rice-straw soil modifier for desertificated soil. The soil modifier is made from the following raw materials, by weight part, 24-25 of konjac flour, 5-7 of guar gum powder, 28-30 of diatomite, 3-4 of carboxymethyl cellulose, 2-3 of ferric citrate, 2.0-2.4 of silicon sulfate, 6-7 of potassium dihydrogen phosphate, 45-47 of rice straw, 1.6-1.8 of monochloro acetic acid, 15-16 of kaolin, 6-7 of calcium-based bentonite and a proper amount of water. The soil modifier aims at a desertificated soil structure. Through addition of guar gum powder and cured diatomite, adhesion power among desertificated soil particles is improved, and through the addition of water-retention materials, the water retention ability of desertificated soil is improved, thereby improving and solidifying the quality and structure of desertificated soil. The soil modifier is simple to apply and is suitable for large-scale popularization for improvement of desertificated soil.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a modified rice straw soil modifier for sandy soil. Background technique [0002] my country's agriculture is relatively developed, and it is a large agricultural country with a long history. A large amount of agricultural solid waste is produced every year, such as sugarcane dregs, rice husks, rice and wheat straw, etc. These agricultural solid wastes are often not comprehensively utilized in a timely manner, and are dumped and incinerated indiscriminately, causing huge pollution to the environment. The use of low-quality agricultural solid waste as raw material for soil improvement has become a research hotspot in the field of high-quality solid waste utilization and environmental restoration. Through simple physical or chemical treatment of these solid wastes, the adsorption performance of heavy metals and organic pollutants in the soil can be improved, the physical ...

AI Technical Summary

Problems solved by technology

[0004] At present, the effect of common soil modification and modification materials is single, and the performance of modified materials is less explored, and there is more room for improvement in terms of stability, adsorption, and environmental protection.

Sandy soil has a lot of sand and poor water and fertilizer retention capacity, which makes it impossible to use it efficiently. Therefore, the improvement of sandy soil is an important development direction for the preparation of soil modifiers.