生物炭用量对灌区春小麦干物质和氮素积累、转运及产量的影响

惠超, 杨卫君, 邓天池, 陈雨欣, 宋世龙, 张金汕, 石书兵

Effects of Biochar Dosage on Accumulation and Transport of Dry Matter and Nitrogen and Yield of Spring Wheat in Irrigated Area

Hui Chao, Yang Weijun, Deng Tianchi, Chen Yuxin, Song Shilong, Zhang Jinshan, Shi Shubing

表7 春小麦氮素积累与转运

Table 7 Nitrogen accumulation and transport in spring wheat

处理 Treatment 花前营养器官 氮素积累量 Nitrogen accumulation pre-anthesis (kg/hm2) 成熟期氮素积累 Nitrogen accumulation at maturity (kg/hm2) 氮素转运 Nitrogen translocation 营养器官 Vegetative part 籽粒 Grain 转运量 Transport amount (kg/hm2) 转运效率 Transport efficiency (%) 对籽粒的贡献率 Contribution rate to grain (%) B0N0(CK) 77.85f 32.41e 100.72e 45.44f 58.35d 45.14d B1N0 107.87e 33.34e 113.63d 74.52e 69.09c 65.61c B2N0 144.59b 42.06b 128.60b 102.53b 70.89ab 79.78a B3N0 116.56d 33.56e 112.69d 83.00d 71.20bc 73.66b B0N1 138.00c 34.36de 127.45b 103.64b 75.09a 81.32a B1N1 132.45c 36.01cd 128.86b 96.44c 72.81ab 74.85b B2N1 174.39a 47.78a 153.74a 126.61a 72.60b 82.37a B3N1 137.77c 39.69c 121.06c 98.08c 71.26bc 81.02a B ns ** ns ns ns ns N * * * ns ns ns B×N ** * ** ** ** **