中国稻米Issue(4)：83-87,5.DOI:10.3969/j.issn.1006-8082.2015.04.018
节肥控污施肥模式对双季稻产量形成及氮素利用的影响
Effects of Optimal Fertilization Practice on Yield Formation and Nitrogen Utilization of Double-cropping Rice
摘要
Abstract
Field experiment was carried out to study the effects of the optimal fertilization practice (OPT) on the growth, yield forma-tion and nitrogen utilization. The results showed as follows:compared with farmer's fertilization practice(FFP), OPT had more effective panicles, more glume flowers per panicle, higher seed setting rate, and therefore increased the grain yield. OPT reduced ineffective tillers, increased the tiller-earing rate and finally improved the effective panicles. OPT also increased the LAI, the SPAD of the flag leaf, the photosynthetic potentials and the accumulation of photosynthesizes materials. Simultaneously OPT could increase the nitrogen utilization, reduce the soil N dependent rate. In this experiment, OPT still obtained the high and stable yield by use of 80% nitrogen and phosphorus compared to FFP, and realized the fertilizer and pollution decreasement. OPT is an ideal fertilization practice of dou-ble-cropping rice.关键词
双季稻/节肥控污施肥模式/生长发育/产量形成/氮素利用Key words
double-cropping rice/optimal fertilization practice/growth/yield formation/nitrogen utilization分类
农业科技引用本文复制引用
钱银飞,陈先茂,许亚群,旷宗夏,谢亨旺,刘方平,王少华,才硕,彭春瑞..节肥控污施肥模式对双季稻产量形成及氮素利用的影响[J].中国稻米,2015,(4):83-87,5.基金项目
国家科技支撑计划项目（2012BAD15B03-02，2013BAD07B12，2011BAD16B04）；江西省“赣鄱英才555工程”领军人才培养计划“双季稻清洁生产关键技术研究与集成示范”；江西省优势科技创新团队计划项目（20113BCB24014）；江西省自然科学基金青年基金（20132BAB214012）；江西省农科院博士启动基金 （）
