氮肥運籌對超級稻鹽豐47產(chǎn)量及氮素利用率的影響

王宇, 蘇平, 付立東

北方水稻, 2007, (5) : 40-43     追溯原文......本站官方QQ群：62473826

超級稻; 氮肥運籌; 產(chǎn)量; 100kg籽粒吸氮量; 氮素利用率

遼寧省鹽堿地利用研究所;盤山縣良種場;遼寧省鹽堿地利用研究所 遼寧盤錦;遼寧盤錦

探討了氮肥運籌對超級稻鹽豐47產(chǎn)量及氮素利用率的影響，結(jié)果表明:基蘗肥與穗肥比例為2:5:3的B處理，獲得了產(chǎn)量731.5kg/667m2，分別比C(3:4:3)、D(3:5:2)、A(2:4:4)處理增產(chǎn)了4.1%、4.8%、9.3%。同時表現(xiàn)為B處理的單位面積有效穗數(shù)、穎花數(shù)、抽穗至成熟期干物質(zhì)積累量占產(chǎn)量的百分比及結(jié)實率、氮素利用率均高于C、D、A處理。

Effect of N-Management on the Yield of Yanfeng 47,a Super Rice Variety,and Nitrogen Use Efficiency

WANG Yu, SU Ping, FU Li-dong

North Rice, 2007, (5) : 40-43

Super rice; N-management; Yield; Assimilate nitrogen per 100 kg of grain; Nitrogen utilization efficiency

The effect of nitrogen management on the yield of Yanfeng 47,a super rice variety,and nitrogen use efficiency was studied.The results showed that the yield from treatment B,the basal fertilizer:tiller fertilizer:panicle fertilizer being 2:5:3(2:5:3),was 731.5 kg/667 m2,higher than those of treatment C(3:4:3),treatment D(3:5:2),and treatment A(2:4:4) by 4.1%,4.8%,and 9.3%,respectively.Meanwhile,the effective panicles and flowers per area,the percentage of dry matter accumulated from heading to maturing to to...

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