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Saline-alkali soils are typically characterized by low organic matter content, poor soil structure, and an imbalance of both positive and negative ions that can be harmful to plant growth. These soils often have low fertility, making it difficult for crops to establish strong seedlings. The presence of excessive salts and alkaline compounds further limits water availability and nutrient uptake, leading to reduced crop yields.
The use of *kappa bacterial fertilizer* can significantly improve the quality of saline-alkali soils. It enhances soil fertility, improves soil structure, and reduces the rate of capillary water movement, which helps in minimizing water loss through evaporation. This type of fertilizer also effectively suppresses salt accumulation, reducing the risk of soil salinization. Additionally, it increases the availability of calcium in the soil, which is essential for plant growth.
Microorganisms present in the bacterial fertilizer break down organic matter, producing organic acids that help activate calcium bound in the soil. This process also promotes the exchange of sodium ions, reducing soil salinity and improving overall soil health. As a result, the harmful ion concentration and pH level of the soil decrease, enhancing its buffering capacity and increasing the crop's tolerance to salt stress.
When fertilizing saline-alkali soils, it's important to follow specific guidelines. A common practice is to increase the application of microbial fertilizers while carefully managing the use of chemical fertilizers. Applying organic fertilizers with high organic content as a base can help reduce the need for chemical inputs. Fertilizers should be kept away from seeds to prevent high soil solution concentrations that may inhibit germination.
It’s crucial to apply fertilizers based on actual field conditions and at the right time to avoid over-application. Where possible, farmers can adopt additional practices such as returning crop residues, planting salt-tolerant green manure, or using other soil improvement techniques to further reduce the adverse effects of salinity and alkalinity on crops. These integrated approaches not only improve soil quality but also support sustainable agricultural development in challenging environments.
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