| 大豆肥田机制的研究Ⅴ.大豆对耕层土壤结构性的影响 |
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| 引用本文： | 马和平,龚振平,王国义,焦景宇,岳才军,沈昌蒲.大豆肥田机制的研究Ⅴ.大豆对耕层土壤结构性的影响[J].大豆科学,2001(4). |
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| 作者姓名： | 马和平 龚振平 王国义 焦景宇 岳才军 沈昌蒲 |
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| 作者单位： | 东北农业大学 哈尔滨150030
(马和平，龚振平，王国义，焦景宇，岳才军)，东北农业大学 哈尔滨150030(沈昌蒲) |
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| 摘 要： | 在大豆盛花期和结荚期 ,土壤水稳性团聚体数量达到最大值 ,比苗期增加 30 %。玉米区土壤在同一时期水稳性团聚体也达到最大值 ,比苗期增加 2 3%。但在收获期 ,大豆区水稳性团聚体比苗期增长 16% ,而玉米区却减少 33%。大豆区团聚体 (0 5 - 1mm和 1- 2mm粒径 )对水的稳定性指数比玉米高 17 5 %。从水分能量观点出发 ,易于被作物从中吸收有效水分的 0 0 5 - 0 0 1mm和 0 0 1- 0 0 5mm的孔径孔隙 ,大豆区始终高于玉米区。作物吸收水分较困难的 >0 0 5mm和 <0 0 0 5mm孔径孔隙 ,在大豆生育期中迅速减少 ,至收获期仍低于玉米区
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| 关 键 词： | 大豆 土壤结构 水稳性指数 当量孔径孔隙 |
STUDY ON THE MECHANISM OF SOYBEAN'S FERTILIZING SOIL 5. The effect of soybean on thestructure of the tilith soil |
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| Ma Heping,Gong Zhenping,Wang Guoyi,Jiao Jingyu,Yue Caijun,Shen Changpu.STUDY ON THE MECHANISM OF SOYBEAN''''S FERTILIZING SOIL 5. The effect of soybean on thestructure of the tilith soil[J].Soybean Science,2001(4). |
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| Authors: | Ma Heping Gong Zhenping Wang Guoyi Jiao Jingyu Yue Caijun Shen Changpu |
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| Abstract: | The content of soil water stable aggregates reaches the maximum value during soybean blooming and podding stage, which is 31.7% higher than it's seedling stage. The corn plot also reaches the maximum value at the same stage, which is 22.9% higher than it's seedling stage. During the soybean havesting stage, the stable aggregates are 15.9% higher than it's seedling stage and the corn plot decreases by 32.8% .The water stable index(0.5-1mm and 1mm-2mm aggregates) is 17.5% higher than corn plot. From the point of water energy, the water in which maybe easy to be absorbed by root, soybean, plot is higher than corn plot all along. |
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| Keywords: | Soybean Soil structure Water stable aggergate Water stable index Equivalent pore |
| 本文献已被 CNKI 等数据库收录！ |
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