Soils with thin, sticky and heavy soils These types of soils are generally more viscous, poor in permeability, more water- and nutrient-rich, easily accumulate water, high potential nutrient content, slow decomposition of organic matter, easy accumulation, long fertility, low temperature difference between day and night, and difficult to cultivate , Shortage of suitable tillage, poor quality of cultivation, poor seal structure.
Improved method: First, re-apply organic fertilizer. The applied organic fertilizer tends to form humus, thus promoting the formation of granule structure, sending soil structure and ploughing. Generally, 15-20 tons of organic fertilizer is applied per acre per year, and a good vegetable field can be established within 3-4 years. The second is pressure reduction to reduce viscosity. Under conditional conditions, 20-30 tons of river sand will be applied per mu. For two consecutive years, organic fertilizers will be applied to improve the viscous soil.
The low-lying saline-alkali soil of the low-lying saline-alkali soil is generally prone to water accumulation and high salt content. Its PH value is above 8, impeding the normal growth of the crop.
Improved methods: First, increase the organic fertilizer and promote the increase of organic matter content. The most basic way to improve the saline-alkali soil is to cut off the capillary connection between topsoil and subsoil. The humus that can be converted into organic fertilizers promotes the formation of agglomerate structure on the topsoil and acts as a salt press. Therefore, deep plowing combined with large amounts of organic fertilizers is an effective measure. The second is agricultural biological measures, including leveling land, soil fertility, planting alkali-tolerant crops and green manure. The third is chemical improvement measures, mainly using soil amendments.
Improvement of sandy soils: Sandy soils generally exhibit excessive looseness, leakage of water and fertilizer, lack of organic matter, large evaporation, low insulation performance, short fertility, and easy defertilization in the later period.
Improved methods: First, apply organic fertilizers in large quantities. This is the most effective way to improve sandy soils. That is, various manures and composts are turned into soil in spring or autumn tillage. Due to the buffering effect of organic matter, more soluble chemical fertilizers can be applied. In particular, ammonium nitrogen and phosphorus fertilizers can be preserved. Not lost in the soil. The second is to use a large amount of river mud and pond mud, which is also a good way to improve the sand. If you can apply mud 4-10 tons per mu per year. Combining tillage and organic manure to make the soil rich in soil and manure: Since most of the topsoil rich in organic matter is removed during the new construction of the solar greenhouse, the primary problem in the new greenhouse is to increase the content of organic matter in the soil. Soil organic matter has the functions of providing nutrients needed for crops and improving nutrient availability, improving soil physical and chemical properties, and enhancing soil fertility and buffering performance. After a few years, the soil fertility will inevitably greatly increase, excessive loose water leakage, and the leakage of fertilizer will improve. The third is to plant leguminous vegetables in intercropping seasons between the two seasons, intercropping and rotation to increase humus and nitrogen fertilizers in the soil. The fourth is that the thinner sand layer can press sand in the late autumn to mix the clay and sand in the bottom layer to reduce the sand quality.
Improved method: First, re-apply organic fertilizer. The applied organic fertilizer tends to form humus, thus promoting the formation of granule structure, sending soil structure and ploughing. Generally, 15-20 tons of organic fertilizer is applied per acre per year, and a good vegetable field can be established within 3-4 years. The second is pressure reduction to reduce viscosity. Under conditional conditions, 20-30 tons of river sand will be applied per mu. For two consecutive years, organic fertilizers will be applied to improve the viscous soil.
The low-lying saline-alkali soil of the low-lying saline-alkali soil is generally prone to water accumulation and high salt content. Its PH value is above 8, impeding the normal growth of the crop.
Improved methods: First, increase the organic fertilizer and promote the increase of organic matter content. The most basic way to improve the saline-alkali soil is to cut off the capillary connection between topsoil and subsoil. The humus that can be converted into organic fertilizers promotes the formation of agglomerate structure on the topsoil and acts as a salt press. Therefore, deep plowing combined with large amounts of organic fertilizers is an effective measure. The second is agricultural biological measures, including leveling land, soil fertility, planting alkali-tolerant crops and green manure. The third is chemical improvement measures, mainly using soil amendments.
Improvement of sandy soils: Sandy soils generally exhibit excessive looseness, leakage of water and fertilizer, lack of organic matter, large evaporation, low insulation performance, short fertility, and easy defertilization in the later period.
Improved methods: First, apply organic fertilizers in large quantities. This is the most effective way to improve sandy soils. That is, various manures and composts are turned into soil in spring or autumn tillage. Due to the buffering effect of organic matter, more soluble chemical fertilizers can be applied. In particular, ammonium nitrogen and phosphorus fertilizers can be preserved. Not lost in the soil. The second is to use a large amount of river mud and pond mud, which is also a good way to improve the sand. If you can apply mud 4-10 tons per mu per year. Combining tillage and organic manure to make the soil rich in soil and manure: Since most of the topsoil rich in organic matter is removed during the new construction of the solar greenhouse, the primary problem in the new greenhouse is to increase the content of organic matter in the soil. Soil organic matter has the functions of providing nutrients needed for crops and improving nutrient availability, improving soil physical and chemical properties, and enhancing soil fertility and buffering performance. After a few years, the soil fertility will inevitably greatly increase, excessive loose water leakage, and the leakage of fertilizer will improve. The third is to plant leguminous vegetables in intercropping seasons between the two seasons, intercropping and rotation to increase humus and nitrogen fertilizers in the soil. The fourth is that the thinner sand layer can press sand in the late autumn to mix the clay and sand in the bottom layer to reduce the sand quality.
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