Strategies:
Biological improvement:
- planting salt-tolerant plants and pastures
香蒲 (耐盐度0.3-0.4%)
珠美海棠 (耐盐度0.6%，PH9.2)
The aboveground growth part of the plant has a shading effect, which can reduce the evaporation of soil moisture, reduce the rate of salt accumulation on the surface, plant salt absorption can reduce the soil salt content, plant roots interspersed in the soil can change the physical properties of the soil, promote soil desalination, and the biochemical effect of plant roots can also improve soil nutrients and chemical properties, and inhibit the occurrence of soil salinization. Compared with physical and chemical improvement measures, biological measures are low-cost, environmentally friendly, and can produce economic benefits, which are quite popular among farmers.
2.green manure
The soil structure of saline-alkali land is poor, and organic fertilizer promotes the formation of soil aggregates, increases soil aeration and water permeability, and improves soil buffering capacity by decomposing microorganisms and forming humus. The decomposition of organic matter in humus fertilizer will form organic acids, which can not only neutralize soil alkalinity, but also enhance the decomposition of nutrients and increase the effectiveness of phosphorus
All four aspects have a certain scope of application and conditions, so they must be adapted to local conditions and comprehensively managed.