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修建水平梯田是黄土丘陵沟壑区坡耕地控制水土流失、增加水分入渗的一条成功经验,也是强化农业系统功能,提高抗御自然灾害能力的极为有效途径之一。新建梯田的生土熟化和选种先锋作物是两个关键性问题。我们在黄土丘陵沟壑区安塞县纸坊沟流域综合治理区,通过田间布设的小区试验,对新修梯田上不同作物的耕作施肥效应进行研究分析,以期寻求出适宜的作物种类和耕作施肥技术,为山区新
The construction of horizontal terraces is a successful experience of controlling soil and water loss and increasing water infiltration in slope land in the hilly and gully region of Loess Plateau. It is also one of the most effective ways to strengthen the function of agricultural system and improve the capability of resisting natural disasters. The new terracing of soil preparation and selection of pioneer crops are two key issues. In the comprehensive control area of Zhifanggou basin in Ansai County, Loess Plateau, we conducted field experiments on the fertilization effect of different crops on the newly-built terraced fields in order to find suitable crop species and cultivation and fertilization techniques , New for the mountains