播种方式和播量对干旱区旱地小麦土壤水分利用及产量的影响

罗晓颖, 房彦飞, 胡冬平, 唐江华, 徐文修, 王怀港

Effects of Sowing Methods and Sowing Rates on Soil Water Use and Yield of Dryland Wheat in Arid Region

Luo Xiaoying, Fang Yanfei, Hu Dongping, Tang Jianghua, Xu Wenxiu, Wang Huaigang

表2 各生育阶段土壤水分消耗量及其所占比例的变化

Table 2 Changes of soil water consumption and its ratio during different growth periods

播种方式 Sowing method 播量 Sowing rate 播种期-拔节期Sowing-jointing 拔节期-开花期Jointing-anthesis 开花期-成熟期Anthesis-maturity 耗水量 Water consumption (mm) 占总耗水量比例 Proportion in total water consumption (%) 耗水量 Water consumption (mm) 占总耗水量比例 Proportion in total water consumption (%) 耗水量 Water consumption (mm) 占总耗水量比例 Proportion in total water consumption (%) C1 D1 161.84ab 64.97ab 49.14a 19.72a 37.94h 15.23e D2 152.63c 60.61c 38.90bc 15.45c 60.08f 23.86cd D3 160.45b 64.07b 34.35c 13.72c 55.41g 22.13d D4 165.54a 66.77a 47.77a 19.27ab 34.41h 13.88e 均值 160.12A 64.11A 42.54A 17.04A 46.96C 18.78B C2 D1 141.84de 56.52de 39.43bc 15.71bc 69.48d 27.69abc D2 139.16def 54.77def 38.81bc 15.27c 75.89bc 29.87ab D3 141.41de 56.18de 38.21bc 15.18c 71.91cd 28.57ab D4 143.76d 57.47d 41.75b 16.69abc 64.45ef 25.76bcd 均值 141.54B 56.24B 39.55B 15.71A 70.43B 27.97A C3 D1 141.06de 55.76de 37.89bc 14.98c 73.83bcd 29.18ab D2 137.69ef 53.92ef 39.30bc 15.39c 78.16ab 30.61a D3 135.90f 52.98f 38.01bc 14.82c 82.41a 32.13a D4 142.34de 56.49de 41.34b 16.41abc 68.09de 27.02abc 均值 139.25C 54.79C 39.14B 15.40A 75.62A 29.74A F值 F-value C 88.28** 83.78** 1.01 1.39 33.74** 33.43** D 5.06* 6.80* 2.04 2.38 6.21* 5.69* C×D 3.19* 1.87 5.68** 1.88 11.96** 2.61