控释氮肥减施对春玉米产量、氮素吸收及转运的影响

尹彩侠, 李前, 孔丽丽, 秦裕波, 王蒙, 于雷, 刘春光, 王立春, 侯云鹏

Effect of Reduced Controlled-Release Nitrogen Fertilizer Application on Yield, Nitrogen Absorption and Transportation of Spring Maize

CaiXia YIN, Qian LI, LiLi KONG, YuBo QIN, Meng WANG, Lei YU, ChunGuang LIU, LiChun WANG, YunPeng HOU

表2 不同施氮处理对玉米产量及产量构成因素的影响

Table 2 Effect of different N fertilization methods on maize yield and its components

年份 Year 处理 Treatment 产量 Yield (kg·hm-2) 收获穗数 Ear number (ear/hm2) 穗粒数 Kernel number (No./ear) 百粒重 100-grains weight (g) 2013 CK 9596b 55115b 540.0b 32.8d FP 12448a 58201a 588.3a 37.9c OPT 12762a 58642a 598.5a 39.7b CRU1 12779a 60406a 598.5a 40.7a CRU2 12727a 59965a 609.5a 39.2c 2014 CK 9427c 54674b 489.3b 31.5b FP 9722bc 58201a 530.7ab 34.7a OPT 10753a 59965a 554.7ab 35.1a CRU1 10380ab 59524a 576.0a 35.0a CRU2 10019bc 58642a 566.7a 34.9a 均值 Mean CK 9512b 54894b 514.7c 32.2c FP 11085a 58201a 559.5b 36.3b OPT 11757a 59303a 576.6a 37.4ab CRU1 11579a 59965a 587.3a 37.8ab CRU2 11373a 59303a 588.1a 37.1ab 变异来源Source of varieties 施氮方式Methods of N fertilization (F) ** ** ** ** 年份Year (Y) ** NS ** ** 施氮方式×年份 F×Y ** NS NS **