耕作、施氮和密度及其互作对旱地春玉米土壤水分及产量形成的影响
李敖,张元红,温鹏飞,王瑞,董朝阳,宁芳,李军(
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Effects of Tillage, Nitrogen Application, Planting Density and Their Interaction on Soil Moisture and Yield Formation of Spring Maize in Dryland
LI Ao,ZHANG YuanHong,WEN PengFei,WANG Rui,DONG ZhaoYang,NING Fang,LI Jun()
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图2. 2017—2018年不同处理春玉米水分利用效率
不同小写字母代表同一耕作下不同施氮与密度间统计检验在5%水平差异显著
Fig. 2. Water use efficiency of spring maize under different treatments from 2017 to 2018
Different lowercase letters represent significant differences at 5% level between different nitrogen application and density under the same tillage treatments
