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5 休闲期深松和覆盖播种对旱地小麦植株开花前各器官氮素运转和开花后氮素积累的影响

Table 5 Effect of subsoiling during fallow period and sowing-mulched on accumulated nitrogen translocation from various organs before anthesis and nitrogen accumulation after anthesis in dryland wheat

年份 Year 耕作 Tillage 播种方式 Sowing method 花前各器官运转量PANT 花后积累 NAAA 叶片Leaf 茎秆+叶鞘Stem+sheath 颖壳+穗轴Glume+spike 运转量 TA (kg·hm-2) 贡献率 CP (%) 运转量 TA (kg·hm-2) 贡献率 CP (%) 运转量 TA (kg·hm-2) 贡献率 CP (%) 运转量 TA (kg·hm-2) 贡献率 CP (%) 丰水年 Humid year (2011-2012) SS FSH 35.28a 20.19a 70.43a 40.31ab 32.83a 18.79a 36.19a 20.71f FM 31.02b 19.07b 67.65b 41.59a 28.27b 17.38a 35.74a 21.97e DS 24.97c 18.00c 57.14c 41.21a 23.30c 16.80b 33.26b 23.99d NT FSH 21.64e 18.10c 47.71d 39.90b 19.18d 16.04b 31.04c 25.96b FM 25.02c 18.40c 56.09c 41.25a 22.91c 16.85b 31.95c 23.50c DS 17.41f 17.07d 40.30e 39.51b 13.86e 13.59c 30.41c 29.83a 欠水年 Dry year (2012-2013) SS FSH 17.46b 19.21a 37.11b 40.83b 13.00b 14.30a 23.32a 25.66c FM 19.07a 19.98a 42.60a 42.39a 14.55a 14.48a 24.27a 24.15d DS 14.55c 18.85a 30.80c 39.90b 9.98d 12.92b 21.88b 28.33b NT FSH 12.97d 18.75a 27.93d 40.35b 8.35e 12.05b 19.97bc 28.85b FM 16.56b 19.36a 35.90b 41.97a 11.22c 13.12b 21.85b 25.55c DS 10.68e 18.44a 22.35e 38.59c 6.48f 11.18c 18.53c 31.79a 欠水年 Dry year (2015-2016) SS FSH 17.89b 18.74a 41.70b 43.67b 13.39b 14.03a 22.50a 23.56c FM 20.76a 18.83a 50.04a 45.37a 16.25a 14.74a 23.23a 21.07d DS 14.60d 18.54a 31.55d 41.06c 10.93c 13.87b 21.67b 27.52b NT FSH 13.25d 18.20a 30.33d 41.69c 9.45c 12.99b 19.73bc 27.12b FM 16.30c 18.47a 37.99c 43.03b 12.14b 13.75b 21.86b 24.76c DS 11.24e 17.76a 25.18e 39.80d 7.78d 12.29c 19.08c 30.15a