秸秆还田结合秋覆膜对旱地冬小麦耗水特性和产量的影响

陈玉章,柴守玺,程宏波,柴雨葳,杨长刚,谭凯敏,常磊

Effects of straw-incorporation combined with autumn plastic mulching on soil water consumption characteristics and winter wheat yield in arid farming areas

Yu-Zhang CHEN,Shou-Xi CHAI,Hong-Bo CHENG,Yu-Wei CHAI,Chang-Gang YANG,Kai-Min TAN,Lei CHANG

表2 小麦各生育阶段耗水量及其占总耗水量的比例

Table 2 Water consumption amounts and ratios to total water consumption in different periods of wheat growth

处理 Treatment 播种至返青 Sowing to revival 返青至拔节 Revival to jointing 拔节至开花 Jointing to flowering 开花至成熟 Flowering to maturity 数量 Amount (mm) 比例 Ratio (%) 数量 Amount (mm) 比例 Ratio (%) 数量 Amount (mm) 比例 Ratio (%) 数量 Amount (mm) 比例 Ratio (%) 2011-2012 CF 45.1 b 15.4 b 31.2 a 10.6 ab 119.4 a 40.8 a 97.1 b 33.2 a CNF 71.5 a 23.0 a 23.1 a 7.4 c 107.2 a 34.5 b 108.7 a 35.0 a WF 52.1 b 16.9 b 33.6 a 10.9 a 118.8 a 38.6 a 103.2 ab 33.5 a WNF 75.5 a 24.5 a 26.1 a 8.4 abc 108.0 a 35.1 b 98.4 ab 32.0 a CK 72.4 a 23.2 a 24.8 a 7.9 bc 108.2 a 34.7 b 106.4 ab 34.2 a 2012-2013 CF 22.0 b 8.0 b 78.1 a 28.3 a 106.1 a 38.6 a 68.8 b 25.0 c CNF 47.3 a 17.5 a 19.3 c 7.3 c 112.3 a 42.1 a 88.6 ab 33.1 b WF 19.1 b 7.1 b 60.0 ab 22.4 ab 107.6 a 40.1 a 81.4 ab 30.4 bc WNF 34.4 ab 14.0 ab 37.2 bc 15.1 bc 90.0 a 36.7 a 84.0 ab 34.2 b CK 20.0 b 8.7 b 17.8 c 8.0 c 95.3 a 42.7 a 92.0 a 40.7 a