| Influence of Mn and Fe Counteraction on Rice (Oryza sativa L.)Oranging Physiological Disease |
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| 引用本文： | LIAO ZHONG-WEN,LIN DONG-JIAO,WEN ZHI-PING. Influence of Mn and Fe Counteraction on Rice (Oryza sativa L.)Oranging Physiological Disease[J]. 土壤圈, 1994, 4(2): 119-126 |
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| 作者姓名： | LIAO ZHONG-WEN LIN DONG-JIAO WEN ZHI-PING |
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| 作者单位： | [1]SoilScienceDepartment,SouthChinaAgriculturalUniversity,Guangzhou510642,China [2]SoilScienceDepartment,So |
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| 摘 要： | Mn and Fe are two important micronutrients of paddy soils derived from red earths.Rice(Oryza sativa L.)oranging physiological diease in newly reclaimed red rarths is related to Fe toxicity.There have been considerable studies on Mn and Fe counteraction,but influence of Mn and Fe counteration on rice oranging physiological disease still remains unknown.This paper is to study,using two soils from USA and China respectively,the relationship between Nn and Fe counteraction and the physiological disease.Analysis for water soluble and extractable Fe and Mn showed that Mn/Fe ratios of the red earths were lower than those of the paddy soils.Fertilizing with Mn raised Mn/Fe and reduced oranging leaves,improved growth and increased yields.Analysis with electron probe showed that Mn treatment had less Fe deposit in root epidermis and more Ca and Si in roots.The results indicated that fertilizing with Mn could correct Fe toxicity.How to apply Mn and Fe counteraction in practice is worth further studying.
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| 关 键 词： | 水稻 红壤 生理性病害 橙叶病 铁 锰 拮抗作用 |
Influence of Mn and Fe Counteraction on Rice (Oryza sativa L.)Oranging Physiological Disease |
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| LIAO ZHONG-WEN,LIN DONG-JIAO and WEN ZHI-PING. Influence of Mn and Fe Counteraction on Rice (Oryza sativa L.)Oranging Physiological Disease[J]. Pedosphere, 1994, 4(2): 119-126 |
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| Authors: | LIAO ZHONG-WEN LIN DONG-JIAO WEN ZHI-PING |
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| Affiliation: | [1]SoilScienceDepartment,SouthChinaAgriculturalUniversity,Guangzhou510642,China [2]SoilScienceDepartment,So |
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| Abstract: | Mn and Fe are two important micronutrients of paddy soils derived from red earths.Rice(Oryza sativa L.)oranging physiological diease in newly reclaimed red rarths is related to Fe toxicity.There have been considerable studies on Mn and Fe counteraction,but influence of Mn and Fe counteration on rice oranging physiological disease still remains unknown.This paper is to study,using two soils from USA and China respectively,the relationship between Nn and Fe counteraction and the physiological disease.Analysis for water soluble and extractable Fe and Mn showed that Mn/Fe ratios of the red earths were lower than those of the paddy soils.Fertilizing with Mn raised Mn/Fe and reduced oranging leaves,improved growth and increased yields.Analysis with electron probe showed that Mn treatment had less Fe deposit in root epidermis and more Ca and Si in roots.The results indicated that fertilizing with Mn could correct Fe toxicity.How to apply Mn and Fe counteraction in practice is worth further studying. |
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