两个杂交水稻品种氮肥利用效率的初步研究  

Preliminary Study on Apparent Recovery Efficiency of Applied N for Two Hybrid Rice

作　　者：杨利[1] 余延丰[1] 游艾青[2] 范先鹏[1] 熊桂云[1] 费震江[2] 刘凯[2] 陈志军[2] 丁亨虎 李辉 

机构地区：[1]湖北省农业科学院植保土肥研究所,武汉430064 [2]湖北省农业科学院粮食作物研究所,武汉430064 [3]潜江市农业局,湖北潜江433100

出　　处：《湖北农业科学》2009年第8期1834-1837,共4页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目"丰粮工程"(2006BAD02A14;2006BAD02A02);"沃土工程"(2006BAD25B07);"高效施肥"(2008BADA4B08);国家重点基础研究发展(973)计划项目(2007CB109300);国际植物研究所(IPNI)中国项目部项目(IPNI-hubeiB31)

摘　　要：以湖北农业科学院选育的两个水稻品种培两优986和培两优3076为材料,研究了其在中氮和较高氮水平下的氮肥利用率和农学效率。结果表明,在中氮水平下,两个品种的氮肥利用率都相对较高,达27%;而在较高氮水平下,两个品种的氮肥利用率都比较低;在两个供氮水平之间氮肥农学效率培两优986没有差异,而培两优3076则差异明显。This paper studied the N apparent recovery efficiency and N agronomic efficiency of medium hybrid rice Peil-iangyou 3076 and Peiliangyou 986. The N apparent recovery effieieneies of both cultivars at medium N supply level were higher than that at high N supply level. At medium N supply level, the N apparent recovery efficiency of them was about 27%. There was no difference in N agronomic efficiency of Peiliangyou 986 between high and medium N supply levels, however obviously differences existed in Peiliangyou 3076 between the two N supply levels.

关 键 词：培两优3076 培两优986 产量 氮肥利用率 氮肥农学效率 

分 类 号：S511.320.62[农业科学—作物学]