无机肥配施生物有机肥对超级稻Y两优1号产量及碳氮代谢的影响  

Effects of Combined Application of Inorganic Fertilizers with Bio-organic Fertilizers on Grain Yield and Carbon and Nitrogen Metabolism of Super Hybrid Rice Y Liangyou 1

作　　者：罗连光 田昌[2] 颜应成[3] 刘朝晖 

机构地区：[1]湖南省稀土农用研究中心,湖南长沙410125 [2]湖南农业大学资源环境学院,湖南长沙410128 [3]湖南杂交水稻研究中心,湖南长沙410125

出　　处：《杂交水稻》2011年第1期61-64,共4页Hybrid Rice

基　　金：国家发展和改革委员会资助项目(2007-7-17);长沙市新型肥料工程技术中心建设资助项目(K0902150-61)

摘　　要：采用大田试验研究了无机肥配施生物有机肥对超级稻Y两优1号的产量及碳氮代谢的影响。结果表明:在等养分量施用纯N 165 kg/hm2的情况下,有机N∶无机N为1∶9的处理能显著增加千粒重,且产量最高,稻谷产量达到10.70 t/hm2,比不施肥处理增产极显著,比单施无机肥处理增产显著。植株氮含量与产量呈显著正相关,可溶性糖含量与产量相关不显著;植株糖氮比与产量呈负相关,其中孕穗期和收获期的相关系数分别为-0.811*和-0.851*,均达显著水平。The effects of combined application of inorganic fertilizers with bio-organic fertilizers on grain yield and the metabolism of carbon and nitrogen of Y Liangyou 1,a super hybrid rice variety,were studied in field conditions.The results showed that the treatment with organic N ∶inorganic N equal to 1∶9 increased grain weight significantly and had the highest grain yield among all of the tested treatments with the same amount of pure N application of 165 kg/hm2.The grain yield was as high as 10 701.20 kg/hm2,significantly higher than the control（no fertilization） and the pure inorganic fertilizer treatment at 1% and 5% levels,respectively.The correlation analysis indicated that there existed a significant positive correlation between plant N content and yield but an insignificant correlation between soluble sugar content and yield.The correlation between plant sugar-nitrogen ratio and yield was negative,with the correlation coefficients of-0.811 and-0.851 at booting and harvest stages,respectively,both reaching a significant level of 5%.

关 键 词：超级杂交稻 Y两优1号 有机肥无机肥配比 产量 碳氮代谢 

分 类 号：S511.06[农业科学—作物学] S147.2