施氮量对江苏不同年代中粳稻品种产量与群体质量的影响

陈露, 张伟杨, 王志琴, 张耗, 刘立军, 杨建昌^*

Effects of Nitrogen Application Rate on Grain Yield and Population Quality of Mid-seasonJaponicaRice Cultivars at Different Decades in Jiangsu Province

CHEN Lu, ZHANG Wei-Yang, WANG Zhi-Qin, ZHANG Hao, LIU Li-Jun, YANG Jian-Chang^*

图5 江苏省不同氮肥水平下中粳稻品种改良过程中根系氧化力A~C与光合速率D~F的变化 0N: 全生育期不施氮肥; MN: 全生育期施氮240 kg hm -2 ; HN: 全生育期施氮360 kg hm -2 ; PI: 穗分化始期; HD: 抽穗期; MF: 灌浆中期。
Fig. 5 Changes of root oxidation activity A-C and photosynthetic rate D-F for japonica rice cultivars in Jiangsu under different nitrogen application rates 0N: no nitrogen was applied; MN: 240 kg hm -2 nitrogen was applied; HN: 360 kg hm -2 nitrogen was applied; PI: panicle initiation; HD: heading; MF: middle grain filling stage.