减氮覆膜对黄土旱塬小麦产量及养分吸收利用的影响

刘凯,谢英荷,李廷亮,马红梅,张奇茹,姜丽伟,曹静,邵靖琳

Effects of Nitrogen Reduction and Film Mulching on Wheat Yield and Nutrient Absorption and Utilization in Loess Plateau

LIU Kai,XIE YingHe,LI TingLiang,MA HongMei,ZHANG QiRu,JIANG LiWei,CAO Jing,SHAO JingLin

表4 2012—2019年不同种植模式下氮磷钾吸收利用效率

Table 4 Absorption and utilization efficiency of NPK under different planting modes from 2012 to 2019

年份 Year 处理 Treatment 籽粒养分吸收量 Nutrient uptake of grain (kg·hm-2) 秸秆养分吸收量 Nutrient uptake of straw (kg·hm-2) 表观回收率 Recovery efficiency (%) 偏生产力 Partial factory productivity (kg·kg-1) N P K N P K N P K N P K 2012—2013 FP 39.1b 8.1b 5.5b 9.3b 3.74b 16.6b 6.6b 3.91b - 16.3b 19.5b - MF 37.0b 8.9b 5.6b 13.9a 4.89a 20.6a 8.2b 4.79b 11.9b 16.6b 20.2b 79.6b RFSF 52.4a 11.1a 7.6a 13.1a 4.95a 20.4a 14.6a 8.13a 15.4a 22.1a 26.3a 103.5a 2013—2014 FP 86.8c 19.4b 19.6b 19.2b 10.1c 93.9c 24.0a 27.38b - 28.2c 28.2c - MF 98.0b 21.5b 22.2b 20.7b 20.2a 205.0a 46.5a 52.37a 2.8a 47.3b 34.1b 192.1b RFSF 108.9a 26.3a 26.4a 27.1a 15.4b 145.7b 46.2a 44.30a 4.2a 55.2a 41.5a 235.8a 2014—2015 FP 76.5c 18.3b 14.5b 25.9a 12.1b 115.2b 6.6b 16.4a - 29.0c 29.0c - MF 105.1b 19.6b 16.5a 28.6a 14.6b 118.9b 6.2b 14.8a 33.1a 43.9b 89.9b 92.2a RFSF 116.0a 24.7a 17.8a 31.0a 17.3a 125.9a 11.4a 16.3a 33.5a 48.1a 98.4a 93.2a 2015—2016 FP 53.2c 18.2b 12.3b 11.8b 9.9b 51.3b 14.8c 5.0c - 19.5c 19.5c - MF 61.5b 18.6b 11.8b 11.9b 10.2b 53.7b 17.9b 9.7b 46.5a 24.8b 48.9b 66.3b RFSF 70.6a 28.2a 18.9a 17.1a 15.6a 74.0a 22.3a 20.0a 43.9a 33.6a 66.0a 88.9a 2016-2017 FP 83.2b 22.2b 12.6b 24.1b 27.9a 90.1b 15.5b 13.5a - 28.8c 28.8c - MF 76.6b 23.5b 15.2b 24.7b 28.0a 93.7b 16.0b 16.0a 42.5b 49.7b 49.7b 141.8b RFSF 96.6a 30.8a 22.0a 32.0a 28.2a 121.2a 20.9a 20.9a 63.5a 61.5a 61.5a 175.6a 2017—2018 FP 39.8b 13.4b 18.3b 45.8b 13.2b 73.4b 12.5a 31.2a - 14.9c 14.9c - MF 45.5b 15.2b 18.4b 42.4b 14.9b 74.8b 17.1a 13.0b 12.5b 28.6b 42.9b 94.8b RFSF 64.4a 20.6a 24.6a 51.8a 21.3a 99.9a 14.4a 10.9b 25.7a 36.9a 55.4a 106.9a 2018—2019 FP 44.9b 17.8b 11.9b 11.7b 9.7b 49.6b 13.7c 4.8c - 9.8c 24.4a - MF 37.9c 16.2b 11.8b 11.6b 10.1b 51.3b 34.2b 10.4b 45.7a 16.0b 14.8c 79.9b RFSF 48.9a 25.6a 17.6a 16.9a 16.2a 72.1a 42.1a 19.8a 42.8a 21.5a 19.8b 107.4a 平均 Mean FP 60.5b 16.8b 13.5b 21.1b 12.4b 70.0c 13.3c 14.6c - 20.9c 58.0a - MF 65.9b 17.7b 14.5b 22.0b 14.7b 88.3b 20.9b 17.3b 27.9b 32.4b 42.9b 106.7b RFSF 79.7a 23.9a 19.3a 27.0a 17.0a 94.2a 24.6a 20.0a 32.7a 39.8a 52.7a 130.2a