施氮量对高粱产量、品质及氮利用效率的影响

曹晓燕, 武爱莲, 王劲松, 董二伟, 焦晓燕

Effects of Nitrogen Fertilization on Yield, Quality and Nitrogen Utilization Efficiency of Sorghum

Cao Xiaoyan, Wu Ailian, Wang Jinsong, Dong Erwei, Jiao Xiaoyan

表5 施氮量对茎叶向籽粒氮转运的影响

Table 5 Effects of N fertilization on N translocation from leaf and stem to grain

处理 Treatment N转运量 (mg/盆) N translocation (mg/pot) 转运N占 籽粒N比例 Proportion of N translocation to grain (%) 营养器官 氮转运率 N translocation rate of source- sink (%) N0 31.59±0.62c 49.89±0.58b 39.70±0.76c N1 155.09±11.96b 67.48±5.47ab 63.33±1.22b N2 272.55±11.74b 71.60±1.67a 70.40±0.49ab N3 490.11±32.08a 76.45±4.79a 76.76±0.86a N4 470.19±44.33a 72.54±5.30a 61.09±1.93ab N5 235.29±32.22b 52.16±5.18b 44.12±4.86c