不同降雨年型黑膜垄作对土壤水肥环境及马铃薯产量和效益的影响
杨封科,何宝林,董博,王立明

Effects of Black Film Mulched Ridge-Furrow Tillage on Soil Water- Fertilizer Environment and Potato Yield and Benefit Under Different Rainfall Year in Semiarid Region
YANG FengKe,HE BaoLin,DONG Bo,WANG LiMing
图3 黑膜覆盖垄作不同垄型马铃薯种植示意图
Fig. 3 Sketch of black film mulched ridge-furrow tillage with different ridge shapes for potato planting