| 水稻黄叶生理病与硅肥施用效果 |
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| 引用本文： | 廖宗文,林东教,江东荣,王卫红,温志平.水稻黄叶生理病与硅肥施用效果[J].华南农业大学学报,1993(4). |
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| 作者姓名： | 廖宗文 林东教 江东荣 王卫红 温志平 |
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| 作者单位： | 华南农业大学土化系
(廖宗文，林东教，江东荣，王卫红)，华南农业大学土化系(温志平) |
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| 基金项目： | 中国科学院土壤圈物质循环开放实验室资助课题 |
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| 摘 要： | 新垦红壤植稻后发生的黄叶生理病与铁毒缺硅有关。施用硅肥能提高土壤有效硅含量,并提高土壤水溶性及活性Si/Fe值,抑制黄叶生理病症,改善水稻生长状况,提高水稻产量。电子探针分析根内元素表明:施用硅肥可减少铁在根表皮层的积累,增加根内皮层硅钙的含量。
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| 关 键 词： | 硅肥 水稻 黄叶生理病 铁 钙 电子探针 |
EFFECT OF Si Fe FERTILIZATION ON RICE ORANGING PHYSIOLOGICAL DISEASE |
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| Liao Zhongwen Lin Dongjiao Jiang Dongrong Wang Weihong Wen Zhiping.EFFECT OF Si Fe FERTILIZATION ON RICE ORANGING PHYSIOLOGICAL DISEASE[J].Journal of South China Agricultural University,1993(4). |
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| Authors: | Liao Zhongwen Lin Dongjiao Jiang Dongrong Wang Weihong Wen Zhiping |
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| Abstract: | Rice oranging physiological disease in newly reclaimed red soils is related to Fe toxicity and Si deficiency. Si fertilization could raise soil available Si content, soil water soluble and active Si/Fe ratio, and subdue oranging disease, thus improving rice yield. Electron probe analysis of elements in rice roots showed that Si fertilization could decrease Fe accumulation in root epidermis and could increase Si Ca content in root endodermis. |
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| Keywords: | Si fertilizer Rice oranging physiological disease Pe Ca Electron probe |
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