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Deep can effectively reduce soil bulk density, improved plough layer of physical and chemical properties of soil, straw can increase soil organic matter, enhance soil fertility, but larger farming experiments under the influence of environment and climate.

The depth ploughs may reduce the soil bulk specific gravity effectively, the improvement soil topsoil physics and chemistry nature, the straw stalk also field may increase the soil ulmin, enhances the soil fertility, but the cultivation localization experiment is been big the environment weather eff

put down deep roots can be an effective way to reduce soil bearing capacity, improve soil tillage layer physiochemical nature, Straw also tin can increase soil organic matter, soil fertility improvement, but farming positioning test subject to environmental impacts.

Deep can effectively reduce soil bulk density, improved plough layer of physical and chemical properties of soil, straw can increase soil organic matter, enhance soil fertility, but larger farming experiments under the influence of environment and climate.