Conditioner for relieving saline-alkaline stress and waterlogging stress of cotton as well as preparation method and application of conditioner

Abstract

The invention discloses a conditioner for relieving saline-alkaline stress and waterlogging stress of cotton as well as a preparation method and an application of the conditioner. The conditioner for relieving saline-alkaline stress and waterlogging stress of cotton is prepared as follows: a compound liquid preparation is prepared from a polymer saline-alkaline reduction agent, a reactive oxygen scavenger, probiotics and a soil pore improver by dissolving in wood vinegar and is adsorbed by the soil pore improver; the preparation method is simple, the prepared conditioner for relieving saline-alkaline stress and waterlogging stress of cotton is applied to a ridge as basic fertilizer during land preparation and ridging, and can reduce the salinity and alkalization degree of soil, scavenge reactive oxygen in cotton plants and improve the total aeration porosity of the soil, meanwhile, harm of salinity-alkalinity and waterlogging to cotton growth is eliminated, and high and stable yield of cotton in coastal saline-alkaline areas is guaranteed after the cotton suffers from floods.

Description

technical field [0001] The invention belongs to the technical field of crop planting, and relates to a conditioning agent for relieving cotton salinity and waterlogging stress, a preparation method and application thereof. Background technique [0002] As the main producing area of ​​crops, my country's coast is the most vulnerable area to floods. At the same time, the problem of salinization of cultivated land is very prominent, and saline-alkali soil is widely distributed. Salinity-alkali waterlogging stress affects almost all important life processes of crops, resulting in abnormal growth and even death. Therefore, saline-alkali waterlogging endangers the sustainable development of coastal agriculture and poses a serious threat to ecological security and human survival. [0003] Cotton is a crop with strong stress resistance. It is widely planted in saline-alkali soil in coastal areas, and the growing season overlaps with the rainy season. Cotton in saline-alkali land oft...

AI Technical Summary

Problems solved by technology

Among them, saline-alkali stress is the result of the joint action of osmotic effect and ion toxicity, while waterlogging stress is caused by excessive water, which will cause root hypoxia, reduce the absorption rate of mineral ions and beneficial trace elements, and change the aerobic respiration pathway to harmful. Anaerobic respiration and the accumulation of a large number of harmful substances affect the growth and development of the root system, resulting in reduced root mass, brown root tips, and root rot. It is manifested as a decrease in leaf emergence speed, chlorosis and wilting of leaves, which will adversely affect the high and stable yield of cotton

[0004] However, so far there are few reports on the control of cotton saline-alkali and waterlogging stress. It is of great guiding significance to study a conditioner for relieving cotton salinity-alkali and waterlogging stress to relieve the harm of saline-alkali and waterlogging damage to cotton growth and development. Ensure high and stable cotton yields in coastal saline-alkali areas after floods