Soil Drought and Anti-drought Tillage Methods in the Plateau of Hebei Province

By analysing the reasons of soil drought in the plateau of Hebei Province,it was concluded out that the principles and technologies of soil tillage can be applied to improving the soil moisture and nutrient environments in the region.Dry and windy climate,sandy and poor soil are the main reasons of soil drought and unrationally reclaiming wasteland and land utilization had intensified the processof soil drought.The experiments conducted in this region showed that reduced tillage with strip subsoiling,furrow planting and mulching increased soil water retaining capacity and crop root growth.As a result crop yield was increased by 18.54-23.51% than conventional tillage,soil water use efficiency in the top layer of soil (2m) was increased from 4.05kg/mm. ha to 4.65kg/mm.ha.