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

罗连光, 田昌, 颜应成, 刘朝晖
杂交水稻, 2011, 26(1): 61-64     追溯原文......本站官方QQ群:62473826
超级杂交稻; Y两优1号; 有机肥无机肥配比; 产量; 碳氮代谢

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。

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

LUO Lian-guang, TIAN Chang, YAN Ying-cheng, LIU Zhao-hui
Hybrid Rice, 2011, 26(1): 61-64
super hybrid rice; Y Liangyou 1; combined application of inorganic fertilizers with organic fertilizers; grain yield; carbon and nitrogen metabolism

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 10701.20 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%.


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