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紧实坚硬的犁底层对土壤可耕性和理化性质产生极为不利的影响,既阻碍了根系向下伸展,又影响到根系对养分和水分的吸收,降低了玉米的抗倒伏性。同时由于土壤通透性差,也影响到土壤蓄水保墒能力,使雨季大量的降水白白浪费掉。因此研究深松对土壤以及玉米生长效应是十分必要的。
The firm and hard plow bottom has a very adverse effect on the soil arable and physicochemical properties, which not only hinder the downward extension of the root system, but also affect the absorption of nutrients and water by the root system and reduce the lodging resistance of the corn. At the same time due to poor soil permeability, but also affect the soil water storage capacity, so that a large number of rainy season rainfall wasted. So it is very necessary to study the effect of subsoiling on soil and maize growth.