津郊潮土长期定位试验中施钾效应研究 |
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引用本文: | 王德芳,姚炳贵,高宝岩,吕伟. 津郊潮土长期定位试验中施钾效应研究[J]. 天津农业科学, 2003, 9(1): 20-22 |
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作者姓名: | 王德芳 姚炳贵 高宝岩 吕伟 |
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作者单位: | 天津市土壤肥料研究所,天津,300192 |
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基金项目: | 天津市科技攻关项目(91120803610) |
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摘 要: | 通过20年津郊潮土肥料定位试验,探讨施钾处理与其它处理对土壤养分、作物产量、品质等的影响。结果表明,施钾能提高作物产量,改善土壤养分状况,提高作物蛋白质、氨基酸的含量。不施钾肥,耗竭土壤钾素,会出现钾肥亏缺,使作物减产。
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关 键 词: | 钾肥 长期定位 产量 土壤养分 |
文章编号: | 1006-6500(2003)01-0020-03 |
修稿时间: | 2002-06-13 |
Effect of K-fertilizer from Long-term Experiments of Fertilizers Applied in Fluvo-aquic Soil |
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Abstract: | The twenty years experiments of fertilizers applied in fluvo-aquic soil was conducted to de-termine the effect of fertilizer on the soil nutrients,crop yield and quality.The results showed that K fertilizer could increase yield and content of protein and amino acid of wheat,improve content of soil nutrients.If K fertilizer was not applied,the soil express K lack and output would be decreased. |
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Keywords: | K-fertilizer long-term experiment output soil nutrient |
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