The effects of different nitrogen application on grain yield and nitrogen utilization of no-tillage machine transplanted rice Zhongzheyou 1 were studied. The results showed that it is a single peak curve relation between nitrogen rate and yield. The panicle number increased with nitrogen rate, but the effective panicle percentage decreased. The high yield could obtain through enhancing nitrogen input under low planting density condition. The leaf length and chlorophyll content increased when nitrogen input increased, nitrogen agronomic efficiency and the nitrogen partial productivity decreased with the nitrogen rate increased, the optimum planting density was 21 hills per m2, and the optimum nitrogen input was 180 kg/hm2.
XU Yi-Cheng, ZHU De-Feng, CHEN Hui-Zhe-*
. Effects of Nitrogen Application on Grain Yield and Nitrogen Utilization of No-tillage Machine Transplanted Rice[J]. China Rice, 2014
, 20(6)
: 30
-34
.
DOI: 10.3969/j.issn.1006-8082.2014.06.008
[1] 陈惠哲，向镜，徐一成，等. 水稻免耕机插质量、生长特性及产量形成[J]. 中国水稻科学，2013，27（6）：610-616.
[2] 凌启鸿，张洪程，戴其根，等. 水稻精确定量施氮研究[J]. 中国农业科学，2005，38（12）：2457-246.
[3] 王绍华，刘胜环，王强盛，等. 水稻产量与叶片含氮量及叶色的关系[J]. 南京农业大学学报，2002，25（4）：1-5.
[4] 陈惠哲，朱德峰，林贤青，等. 穗肥施氮量对两优培九枝梗及颖花分化与退化的影响[J]. 浙江农业学报，2008，20（3）：181-185.
[5] Kobayasi K, Horie Y and Imaki T. Relationship between apical dome diameter at panicle initiation and the size of panicle components in rice grown under different nitrogen conditions during the vegetative stage. Plant Prod Sc, 2002, 5: 3-7.
[6] 唐启源，邹应斌，米湘成，等. 不同施氮条件下超级杂交稻的产量形成特点与氮肥利用率[J]. 杂交水稻，2003，18（1）：44-48.
[7] 吴文革，张洪程，陈烨，等. 超级中籼杂交稻氮素积累利用特性与物质生产[J]. 作物学报，2008，31（6）：1060-1068.
[8] 崔月峰，卢铁钢，孙国才，等. 不同氮素水平对北方超级稻物质生产及氮素利用率的影响[J]. 沈阳农业大学学报，2010，41（5）：550-554.
[9] 周江明，赵琳，董越勇，等. 氮肥和栽植密度对水稻产量及氮肥利用率的影响[J]. 植物营养与肥料学报，2010，16（2）：274-281.
