研究了新修梯田不同培肥措施对其土壤理化性质的影响。结果表明，有机肥与氮、磷、钾肥配合施用是改善新修梯田土壤理化性质的重要农艺措施，可使挖方区耕层(0～10 cm)土壤有机质、全氮、全磷分别提高88.1%、90.7%、58.3%，同时使速效养分含量得到大幅度提高，并能有效的减小土壤容重，增加土壤孔隙度，改善土壤水分状况。

Effects of Dingxi city in Gansu province in the newly built terraced different fertilizing their physical and chemical properties of the soil， Importance of agricultural development in the region. The result indicates that organic manure and nitrogen， phosphorus， and potassium combined application is an important agronomic measures to improve the new terracing soil physical and chemical properties. Topsoil can cut soil zone organic matter， total nitrogen， total phosphorus increased by 88.1%， 90.7%， 58.3%，while the available nutrient content has been greatly improved，and can effectively reduce soil bulk density，increase soil porosity，improve soil moisture conditions.

S147.2

国家科技支撑计划项目(2012BAD05B003 )、 国家自然科学基金项目(31460547)、公益性行业(农业)科研专项(201503120)资助。