施氮量对水稻产量的影响OA北大核心CSTPCD
Effect of Amount of N-fertilizer on Yield of Rice
[目的]研究施氮量对水稻产量的影响.[方法]通过低、中、高氮3个处理,研究不同施氮量对水稻产量的影响.[结果]结果表明,随着施氮量的增加,水稻株高、穗长、产量明显增加,均以高氮处理最高,但千粒重、有效穗数以中氮处理最高.N、P、K肥料投入以施N效益最高,净收入2 678.3元/hm2,产投比3.6∶ 1,其次是K,最低是P.[结论] 高氮处理水稻产量最高,N、P、K肥料投入以施N效益最高.
[Objective] Aimed to the effects of amount of N-fertilizer on yield of rice.[Methods] The effects of amount of N-fertilizer yield of rice was studied with 3 nitrogen treatments.[Results] The results showed that with the amount of N-fertilizer increased, rice plant height, spike length, effective tillers, and yield were raised.The high nitrogen treatment was the highest.But effective spike and 1 000-grain weight were highest with medium nitrogen treatment.Ben…查看全部>>
赵越
辽宁省稻作研究所,沈阳,苏家屯,110101
农业科技
水稻施氮量产量
RiceAmount of N-fertilizerProduction
《安徽农业科学》 2009 (19)
8937-8938,2
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