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分析了豫西地区旱农生产中存在的主要问题,阐明了高留茬深松技术的技术要点和增产原理及其对土壤物理性状的影响,可以打破犁底层,增加土壤蓄水纳墒能力,降低土壤容重,改变土壤空气组成,提高土壤饱和导水率,实现旱作农业持续发展。
This paper analyzes the main problems existing in the dry farming in the west of Henan province, expounds the technical points, the principle of yield increase and the effect on the soil physical properties of the deep-stubble deep subsoiling technique, which can break the plow bottom and increase soil moisture storage capacity, Reduce the bulk density of soil, change the composition of soil air, increase the saturated hydraulic conductivity of soil and achieve the sustainable development of dry farming.