Alkaline land improvement requires a combination of factors, including the physical properties, chemical composition, biological activity, and environmental conditions of the soil. Here are some commonly used modifications:
Water Conservancy Improvement: Establish a sound drainage and irrigation system to ensure that soil moisture can be discharged in a timely manner and reduce the accumulation of salt in the soil. At the same time, through irrigation and washing, flood diversion and siltation, etc., the salt in the soil is continuously leached and eliminated to reduce the alkalinity of the soil.
Agricultural technology improvement: through deep tillage, land leveling, filling guest soil, grass covering, silting, sand cover and other measures, improve soil structure, increase soil permeability, and promote the flow and distribution of water and nutrients in the soil. At the same time, increase the application of organic fertilizer, improve the content of soil organic matter, enhance the buffering performance of the soil, and reduce the harm of salt to crops.
Biological improvement: planting and turning green manure forage, straw returning to the field, etc., to increase the organic matter and microbial activity in the soil, and improve soil fertility. At the same time, planting salt-tolerant plants, such as sea buckthorn and alfalfa, can adapt to the saline-alkali environment and improve the physical and chemical properties of the soil.
Chemical improvement: Applying gypsum, alum and other amendments to alkaline soil, alkalized soil and soda salt soil can reduce or eliminate soil alkalinity and improve soil physical and chemical properties. At the same time, the application of acidic fertilizers such as ammonium sulfate can also neutralize soil alkalinity and improve soil fertility.
When implementing improvement measures, the following points need to be noted:
Adaptation to local conditions: Choose the appropriate improvement method according to the local climate, soil conditions and crop types.
Comprehensive policy: comprehensive use of water conservancy, agricultural technology, biology and chemistry and other improvement methods to achieve the best improvement effect.
Long-term persistence: The improvement process needs long-term persistence and cannot be rushed. Through continuous improvement measures and management, the soil quality will be gradually improved and the efficiency of agricultural production will be improved.
In short, the improvement of alkaline land requires comprehensive consideration of various factors and comprehensive measures. Through long-term efforts and practice, we will gradually improve soil quality and provide a good soil environment for agricultural production. This is purely a personal opinion, if you have a different opinion, please discuss it in the comment area.
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