| 重茬大豆生态环境的研究──根际土壤和植株有效养分的年际变化量 |
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| 引用本文： | 王立发,赵淑英,郑桂萍,王立琴,杨树国.重茬大豆生态环境的研究──根际土壤和植株有效养分的年际变化量[J].黑龙江八一农垦大学学报,1995(1). |
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| 作者姓名： | 王立发 赵淑英 郑桂萍 王立琴 杨树国 |
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| 作者单位： | 黑龙江八一农垦大学基础部，齐齐哈尔轻工学院 |
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| 摘 要： | 对重茬大豆根际土壤和植株中元素有效含量的年际变化量进行方差分析，结果表明：根际土壤中Ｃａ，Ｍｇ，Ｆｅ等元素在不同重茬年际的变化量有极显著的差异；Ｃｕ，Ｍｏ等元素的变化量有显著差异。而不论土壤或植株，有效Ｋ的变化量都有显著差异。这说明有效Ｋ，Ｃａ，Ｍｇ，Ｆｅ，Ｃｕ，Ｍｏ是制约重茬大豆减产的关键元素。
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| 关 键 词： | 大豆 重茬 土壤有效元素 |
STUDY ON THE ECO-ENVIRONMENT OF CONTINUOUS-CROPFING OF SOYBEAN-ANNUAI CHANGES OF AVAILABI E NUTRITION IN RHIZOSPHERE SOIL AND PLANT |
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| Wang Lifa,Zhao shuying.STUDY ON THE ECO-ENVIRONMENT OF CONTINUOUS-CROPFING OF SOYBEAN-ANNUAI CHANGES OF AVAILABI E NUTRITION IN RHIZOSPHERE SOIL AND PLANT[J].Journal of Heilongjiang August First Land Reclamation University,1995(1). |
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| Authors: | Wang Lifa Zhao shuying |
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| Institution: | Wang Lifa;Zhao shuying |
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| Abstract: | The annual variance of the elements in rhizosphere soil and plant on continuous-cropping of soyban was analyzed in this paper.The results showed that mineral element such as Ca, Mg and Fe etc between continuous-cropping and rotational cropping had a annual variance reached t value 0.01 significant level. The variance of Cu and Mo reached t value 0.05 significant level. The annual variance of available K reached significant level in both soil and plant. From all above K, Ca,Mg, Fe, Cu, and Mo were the key elements that was one of the limiting factors for soybean production on continuous-cropping field. |
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| Keywords: | soybean 3 continous-cropping mineral element |
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