| 免耕抛秧条件下不同氮肥用量对水稻生长和产量的影响 |
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| 引用本文： | 张兆健,江剑波.免耕抛秧条件下不同氮肥用量对水稻生长和产量的影响[J].广西农业生物科学,2008,27(Z1). |
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| 作者姓名： | 张兆健 江剑波 |
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| 作者单位： | 1. 广西岑溪市筋竹镇农业服务中心,广西岑溪,543209
2. 广西柳州畜牧兽医学校,广西柳州,545003 |
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| 摘 要： | 根据水稻免耕抛秧氮肥施用和吸收利用的特点,2007年在岑溪市筋竹镇进行了早晚两造水稻免耕抛秧不同氮肥施用量对比试验,以探索免耕抛秧栽培的最佳施氮量水平。结果表明:施N 150.0 kg/hm2处理的禾苗长势较好,且病虫害较轻,无效分蘖少,每穗实粒数和结实率以及产量均较高,是水稻免耕抛秧栽培的最佳施氮量。
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| 关 键 词： | 水稻 栽培 免耕抛秧 氮肥 |
Effect of different nitrogen fertilization level on rice growth and yield under no-tillage and scattered-planting farming |
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| ZHANG Zhao-jian,JIANG Jian-bo.Effect of different nitrogen fertilization level on rice growth and yield under no-tillage and scattered-planting farming[J].Journal of Guangxi Agricultural and Biological Science,2008,27(Z1). |
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| Authors: | ZHANG Zhao-jian JIANG Jian-bo |
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| Institution: | ZHANG Zhao-jian1,JIANG Jian-bo2 |
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| Abstract: | Based on the characteristic of nitrogen fertilization and crop N uptake in no-tillage and scattered planting farming of rice,contrast experiments of early and late rice under different N levels were conducted to investigate the optimal N level in Jinzhu town of Cenxi county in 2007.Results showed that when applied with 150.0 kg N/hm2,rice plants had better growth,slighter incidence of diseases and insect pests,lower invalid tillers,higher setting grains,higher setting rate and higher yield,which was the optimum nitrogen application. |
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| Keywords: | rice cultivation no-tillage and scattered-platting nitrogen fertilizer |
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