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1 马铃薯生育期多年（2000—2018）平均降水量和气温 横坐标中数字表示月份,E、M、L 分别表示上旬、中旬和下旬

Fig. 1 Average precipitation and air temperature at potato growth season during 2000-2018 The number in x-axis represents the month, with E, M and L represent the early, middle and late ten-days of the month, respectively