| 土壤水分状况对物质移动及作物生长的影响 |
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| 引用本文： | 张喜群,徐琪,熊毅.土壤水分状况对物质移动及作物生长的影响[J].土壤学报,1983,20(4):347-360. |
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| 作者姓名： | 张喜群 徐琪 熊毅 |
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| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
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| 摘 要： | 水分状况不仅影响水稻土的发生性质,也影响水稻土生态系统的生产力.当稻田灌水量满足蒸发,蒸腾和渗漏需要时,水稻可获高产;如水分过多,反不利于水稻生长.太湖与华南等大面积种植双季稻地区,多因地势低平,土质粘重,土壤排水不良,引起了次生潜育作用,出现青泥层,致使三麦常受渍害,水稻迟发.从而削弱了水稻土生态系统功能的发挥.
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INFLUENCE OF SOIL WATER REGIME ON THE MIGRATION OF MINERAL ELEMENTS IN SOIL AND THE CROP GROWTH |
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| Zhang Xiqun,Xu Qi and Hseung Yi.INFLUENCE OF SOIL WATER REGIME ON THE MIGRATION OF MINERAL ELEMENTS IN SOIL AND THE CROP GROWTH[J].Acta Pedologica Sinica,1983,20(4):347-360. |
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| Authors: | Zhang Xiqun Xu Qi and Hseung Yi |
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| Institution: | Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing |
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| Abstract: | Water regime in paddy soil is one of the main factors which dominate the eluviation and muviation of mineral elements and affect the yield of rice and wheat.A preliminary study was made by modelling soil column experiment for the influence of soil water regime on the eluviation and illuviation of mineral elements in soil and their differentiation in soil profile,as well as its relation to the growth of rice and wheat.Experiment showed that the content of dissolved oxygen in soil column was restricted by the soil water condition;the more the amount of percolating water,the more the dissolved of water oxygen in soil;and the average value of Eh in soil was lowered with the decrease of percolation. |
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