| 等量紫云英条件下化肥用量对早稻养分吸收和干物质积累的影响 |
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| 引用本文： | 徐昌旭,谢志坚,许政良,苏全平,李水荣,秦文婧.等量紫云英条件下化肥用量对早稻养分吸收和干物质积累的影响[J].江西农业学报,2010,22(10). |
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| 作者姓名： | 徐昌旭 谢志坚 许政良 苏全平 李水荣 秦文婧 |
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| 基金项目： | 农业部公益性行业(农业)科研专项 |
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| 摘 要： | 在施用等量紫云英条件下进行了不同化肥用量对早稻养分吸收和干物质积累影响的田间试验。试验结果表明:在翻压紫云英22500kg/hm2的条件下,早稻田可减少化肥用量20%～60%,但是以减少化肥用量20%的效果最佳,能有效促进水稻植株地上部对N、P、K养分的吸收与积累,同时有利于地上部干物质的积累。
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| 关 键 词： | 早稻 紫云英 化肥用量 养分吸收 干物质积累 |
Effects of Applying Mineral Fertilizer Reasonably on Nutrient Absorption and Dry Matter Accumulation of Early Rice under Applying Equivalent Astragalus sinicus |
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| XU Chang-xu,XIE Zhi-jian,XU Zheng-liang,SU Quan-ping,LI Shui-rong,QIN Wen-jing.Effects of Applying Mineral Fertilizer Reasonably on Nutrient Absorption and Dry Matter Accumulation of Early Rice under Applying Equivalent Astragalus sinicus[J].Acta Agriculturae Jiangxi,2010,22(10). |
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| Authors: | XU Chang-xu XIE Zhi-jian XU Zheng-liang SU Quan-ping LI Shui-rong QIN Wen-jing |
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| Abstract: | A field experiment was carried out to study the effects of applying mineral fertilizer reasonably on the nutrient absorption and dry matter accumulation of early rice under the condition of applying equivalent green manure(Astragalus sinicus).The results indicated that the application rate of chemical fertilizer could be reduced by 20%-60% under the condition of applying 22500 kg/hm2 A.sinicus,and reducing 20% chemical fertilizer had the best effect because it could effectively promote the overground part of rice plants to absorb N,P and K nutrient and accumulate the dry matter. |
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| Keywords: | Early rice A sinicus Application rate of mineral fertilizer Absorption of nutrient Accumulation of dry matter |
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