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Due to the excessive use of chemical fertilizers, low input of organic fertilizers, unreasonable farming, etc., the more thin the soil tillage layer is, the fertility of the soil has been inescapable. Fertilization and improvement of soil fertility should start with the transformation of soil environmental conditions and soil properties. There are mainly six ways: 1. Do a good job in basic farmland construction. According to the factors constraining the improvement of soil fertility, various measures for the basic construction of farmland with water control and soil improvement will be adopted according to local conditions. Renovate the soil environment and fertilize the soil so that the soil fertility will continue to increase. 2, the use of biological soil. Afforestation, maintaining water and soil, conserving water resources, adjusting rainfall, reducing water and drought disasters, and establishing a solid foundation for fertilizing soil. The cultivation of green manure fertility is an effective measure to cultivate land and improve the physical and chemical shape of the soil. 3, increase fat and soil. The addition of farmyard fertilizers has a special effect on improving soil fertility. Farmyard manure can improve soil physical and chemical shape and cultivation performance, enrich plant nutrient elements, promote activities of soil beneficial microorganisms, help to maintain water and fertilizer, increase permeability. 4, farming to improve soil. Adopt farming methods such as ploughing, hoeing, grinding, pressing, etc., with deep plowing, or using draughts to change paddy fields to accelerate ripening of raw soil, thicken the soil tillage layer, improve soil structure, and improve soil fertility. 5, soil reform soil. The use of ponds, ditches, rubbish dumps, and topsoil in the ground to improve soil structure can improve soil fertility. 6, a reasonable rotation. The correct crop rotation can make a reasonable use of nutrients and water in the soil and give full play to the beneficial effects of biological soil cultivation and fertilization. At the same time, it can also reduce the damage of pests to crops and promote the bumper harvest.