不同日产量类型机插杂交籼稻的氮素吸收利用特性

邓飞,何连华,陈多,田青兰,李秋萍,曾玉玲,李博,陈虹,王丽,任万军

Characteristics of Nitrogen Absorption and Utilization of Machine- Transplanted Indica Hybrid Rice with Different Daily Yield Types

DENG Fei,HE LianHua,CHEN Duo,TIAN QingLan,LI QiuPing,ZENG YuLing,LI Bo,CHEN Hong,WANG Li,REN WanJun

图1 氮素吸收利用特性与日产量的关系 JS,拔节期;HS,齐穗期;MS,成熟期;NAR,氮素积累速率; NAP,氮素积累比例;NUEB,氮素干物质生产效率;PFP,氮素偏生产力。

Fig. 1 Relationships between daily yield and N accumulation, distribution, redistribution, and use characteristics of machine- transplanted indica hybrid rice (n=9) JS: Jointing stage; HS: Heading stage; MS: Maturity stage; NAR, N accumulation rate; NAP: N accumulation percentage; NUEB: N use efficiency for biomass production; PFP: Partial factor productivity of applied N