基于产量和养分含量的旱地小麦施磷量和土壤有效磷优化

马清霞,王朝辉,惠晓丽,张翔,张悦悦,侯赛宾,黄宁,罗来超,张世君,党海燕

Optimization of Phosphorus Rate and Soil Available Phosphorus Based on Grain Yield and Nutrient Contents in Dryland Wheat Production

MA QingXia,WANG ZhaoHui,HUI XiaoLi,ZHANG Xiang,ZHANG YueYue,HOU SaiBin,HUANG Ning,LUO LaiChao,ZHANG ShiJun,DANG HaiYan

表3 施磷量对小麦磷吸收利用的影响

Table 3 Effects of P rates on P uptake and utilization of wheat

年份 Year 磷用量 P2O5 rate (kg·hm-2) 吸磷量 P uptake (kg·hm-2) 磷收获指数 P harvest index (%) 磷生理效率 P physiological efficiencies (kg·kg-1) 需磷量 1000 kg P requirement (g·kg-1) 磷肥偏生产力 P partial factor productivity (kg·kg-1) 2015 0 11.3d 87.0a 449.3a 2.2d - 50 18.0c 82.1b 371.3b 2.7c 133.9a 100 24.2b 80.3bc 293.1c 3.5b 69.2b 150 25.1ab 78.8c 288.9c 3.5b 48.4c 200 26.9a 75.1d 264.4d 3.8a 35.3d 2016 0 5.8c 91.8a 502.3a 2.0b - 50 10.3b 91.0a 490.3a 2.0b 101.1a 100 15.5a 91.6a 377.8b 2.7a 58.4b 150 15.7a 90.3a 375.1b 2.7a 39.3c 200 17.3a 89.4a 350.7c 2.9a 30.4d 2017 0 7.1c 86.3ab 441.0a 2.3d - 50 13.5b 88.2a 390.2b 2.6c 105.2a 100 19.6a 85.8ab 299.5c 3.4b 58.5b 150 19.9a 84.8b 267.9d 3.8a 35.1c 200 21.8a 84.4b 260.8d 3.9a 28.2d 年度均值 Year average 2015 21.1A 80.7C 333.4B 3.1A 71.7A 2016 12.9B 90.8A 419.3B 2.4B 57.2B 2017 16.4B 86.0B 331.9A 3.2A 56.7B 处理均值 Treatment average 0 8.0a 88.4a 464.2a 2.2d - 50 14.0b 87.1ab 417.3b 2.4c 113.4a 100 19.8c 85.9bc 323.5c 3.2b 62.0b 150 20.2c 84.6c 310.6cd 3.3b 40.9c 200 22.0d 83.0d 291.9d 3.5a 31.3d 变异来源（F值） Source of variance 年度 Year (Y) 24.2** 33.9** 35.1** 22.1** 72.9** 处理 Treatment (T) 87.5** 7.7** 103.2** 75.3** 582.9** 年度×处理Y×T 0.7 2.7* 1.1 2.7* 6.3**