Effects of ridge-furrow tillage on soil water and crop yield in semiarid region
Through field experiments, effects of ridge-furrow tillage with different surface configurations and crop planted in furrow, on the efficiency for rainwater harvesting and crop production, were evaluating to determine the optimal surface configuration of ridge-furrow tillage. Two parameters of ridge heights (HR) and ridge-furrow ratios (RH/W, ratio between HR and furrow width, WF) were defined to determine the configuration of ridge-furrow tillage. The results indicate that relative to conventional field tillage (CT), ridge-furrow tillage increased volumetric soil water content of the plow layer (0-30 cm) and crop yields. And the practice with 25 cm HR (ridge height) and 1/24 RH/W (ratio between HR and furrow width) was the most optimal configuration of ridge-furrow tillage for rainfed agriculture in semiarid region.
ridge-furrow tillage furrow planting Aboveground biomass Rainfed agriculture
MuXing Liu Yongqin Ge
College of city and environment of Hua Zhong Normal University Wuhan 430079, P.R. China Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education Beijing 100875,
国际会议
上海
英文
3251-3254
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）