| 水稻对紫色土锌形态转化和有效性影响的研究 |
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| 引用本文： | 魏世强,陈事荣.水稻对紫色土锌形态转化和有效性影响的研究[J].西南农业大学学报,1990,12(6):604-608. |
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| 作者姓名： | 魏世强 陈事荣 |
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| 作者单位： | 西南农业大学土化系
(魏世强)，西南农业大学中心实验室
(陈事荣)，西南农业大学土化系(刘陈) |
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| 摘 要： |
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| 关 键 词： | 紫色土 锌 形态 转化 水稻 |
THE STUDY ON ZINC FORMS,TRANSFORMATION AND AVAILABILITY IN THE SOIL UNDER RICE CROP |
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| Wei Shi qiang,Cheng Shirong,Liu Chen.THE STUDY ON ZINC FORMS,TRANSFORMATION AND AVAILABILITY IN THE SOIL UNDER RICE CROP[J].Journal of Southwest Agricultural University,1990,12(6):604-608. |
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| Authors: | Wei Shi qiang Cheng Shirong Liu Chen |
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| Abstract: | To rice growth the availability to order of different forms of soil-Zn is EXC-Zn>OM-Zn>R_2O_3-Zn. The amount of 97% of zinc absorbed by rice mainly come from soils. Fertilizer-Zn mainly transforms into different forms of zinc components. Its contribution order is RES-Zn>CA-Zn>R_2O_3-Zn>OM-Zn>EXC-Zn under tuder the cultivativationof rice. Rice cultivation can promote the soil-Zn and fertilizer-Zn transforming into soil RES-Zn and reducing their availability to crop. These processes are controlled by anaerobic decomposition of soil organic matter and respiration and excretion of rice roots, relating to soil proper-ties as well. |
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| Keywords: | lowland rice zinc morphology/evolutions |
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