Modified-rice-straw soil modifier for red soil

Abstract

The invention discloses a modified-rice-straw soil modifier for red soil. The soil modifier is made from the following raw materials, by weight part, 23-25 of cassava residue, 27-28 of bird droppings, 4-5 of quick lime, 3-4 of chitosan oligosaccharide, 2.8-3.2 of sodium ferric ethylene diamine tetraacetic acid, 2-3 of sodium pyrophosphate, 7-8 of calcium ammonium nitrate, 52-55 rice straw, 2.2-2.4 of monochloro acetic acid, 13-14 of kaolin, 5-6 of calcium-based bentonite and a proper amount of water. The soil modifier aims to solve problems of hardening and acidification of red soil. Through addition of alkaline raw materials and organic raw materials, the unit weight of the red soil is effective reduced, the content of water stable aggregate and organic matters in the red soil are added, and the red soil is loosened. The physical biological indices of the red soil are overall improved, thereby achieving the purpose of high yield of plant growing in the red soil.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a special modified rice straw soil modifier for red 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 phy...

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.