极端年型旱地麦田深松和覆盖播种水分消耗与植株氮素吸收、利用关系的研究

李念念, 孙敏, 高志强, 张娟, 张慧芋, 梁艳妃, 杨清山, 杨珍平, 邓妍

A Study on the Relationship Between Water Consumption and Nitrogen Absorption, Utilization Under Sub-Soiling During the Fallow Period Plus Mulched-Sowing in Humid and Dry Years of Dryland Wheat

NianNian LI, Min SUN, ZhiQiang GAO, Juan ZHANG, HuiYu ZHANG, YanFei LIANG, QingShan YANG, ZhenPing YANG, Yan DENG

表3 休闲期深松和覆盖播种对旱地小麦各生育阶段耗水量及其所占比例的影响

Table 3 Effect of subsoiling during fallow period and sowing-mulched on water consumption amounts and its ratio at different growth stage in dryland wheat

年份 Year 耕作 Tillage 播种方式 Sowing method 播种—拔节STJ 拔节—开花JTA 开花—成熟ATM 耗水量 Amount (mm) 所占比例 Ratio (%) 耗水量 Amount (mm) 所占比例 Ratio (%) 耗水量 Amount(mm) 所占比例 Ratio (%) 丰水年 Humid year (2011-2012) SS FSH 120.50b 25.39d 193.31a 40.74a 160.70a 33.87a FM 119.03b 25.97d 184.75b 40.31a 154.54b 33.72a DS 126.68a 30.04b 165.50c 39.25b 139.47d 30.71b NT FSH 121.86b 29.88b 158.09d 38.77b 140.86d 31.35ab FM 117.84b 27.83c 166.14c 39.23b 149.04c 32.94ab DS 130.70a 33.48a 145.33e 37.22c 124.40e 29.30b 欠水年 Dry year (2012-2013) SS FSH 90.95bc 25.32c 148.04b 41.21a 120.23b 33.47b FM 82.93c 22.34d 153.93a 41.47a 134.35a 36.19a DS 104.35a 30.79b 135.34b 39.15b 105.98c 30.06c NT FSH 88.93bc 29.64b 117.78c 39.25b 93.33d 31.11c FM 84.19c 26.75c 124.79b 39.65b 105.78c 33.61b DS 95.48ab 33.42a 109.12d 37.39c 88.92e 29.19d 欠水年 Dry year (2015-2016) SS FSH 100.92ab 27.23c 142.03b 38.32a 123.98b 34.45b FM 99.64b 24.40d 153.78a 39.20a 138.87a 36.40a DS 102.54a 30.11b 127.31d 37.39b 110.65c 32.50c NT FSH 101.63ab 30.70b 121.80d 36.20b 107.56d 32.50c FM 99.05b 27.57c 131.55c 37.94b 116.13c 34.49b DS 102.50a 34.82a 106.98e 34.30c 93.57e 30.88d