| 金花梨叶片营养诊断分析 |
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| 引用本文： | 魏雪梅,廖明安.金花梨叶片营养诊断分析[J].安徽农业科学,2008,36(20). |
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| 作者姓名： | 魏雪梅 廖明安 |
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| 作者单位： | 大理学院,云南大理,671003;四川农业大学园艺系,四川雅安,625014 |
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| 摘 要： | 目的]对金花梨叶片营养元素状况进行诊断分析。方法]以高产园和低产园的金花梨叶片为试材,对其营养元素含量进行测定分析。结果]高产园无明显缺肥现象,低产园潜在缺乏P、K、Zn、Fe和B。叶片各营养元素之间存在拮抗或增效作用,其中N对K、Mg和Zn有增效作用,对P、Ca和Fe有拮抗作用;Ca和Mg对多数元素有拮抗作用;B与P之间存在增效关系。K是影响产量的关键因子之一。各营养元素间的比例失衡是造成低产的主要原因。金花梨叶片内各营养元素最适含量为:N 2.82%、P 0.10%、K 0.56%、Ca3.92%、Mg 0.31%、Zn 50.77 mg/kg、Fe 98.88 mg/kg和B 35.08 mg/kg。结论]高产园对营养元素的需肥顺序为:K>Mg>N>Fe>Ca>B>P>Zn,低产园的需肥顺序为:B>P>K>Zn>N>Fe>Mg>Ca。
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| 关 键 词： | 金花梨 叶片营养元素 测定分析 配方施肥 |
Diagnosis and Analysis of Nutrient Elements in Leaf of Pyrus pyrifoliar Nak. cv. Jinhua |
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| WEI Xue-mei et al.Diagnosis and Analysis of Nutrient Elements in Leaf of Pyrus pyrifoliar Nak. cv. Jinhua[J].Journal of Anhui Agricultural Sciences,2008,36(20). |
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| Authors: | WEI Xue-mei |
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| Abstract: | Objective] The purpose was to make the diagnosis and analysis on nutrient elements in Leaf of Pyrus pyrifolia Nak.cv.Jinhua.Method] The leaves of P.pyrifolia planted in high yield orchard and low yield orchard were taken as tested materials to determine and analyze the contents of nutrient elements.Result] The high yield orchard was not obviously short of nutrient elements,but the low yield orchard was short of P,K,Zn,Fe and B.There was antagonism or synergism effect among various nutrient elements in leaves,in which,N had synergism effect on K and Mg and Zn and antagonism effect on P,Ca and Fe;Ca and Mg had antagonism effect on most nutrient elements;there was a synergism effect between B and P.The content of K was one of the key factors to influence the yield.The proportional imbalance among various nutrient elements was the major reasons of low yield.The optimum contents of various nutrient elements in P.pyrifolia leaves were: N 2.82%,P 0.10%,K 0.56%,Ca 3.92%,Mg 0.31%,Zn 50.77 mg/kg,Fe 98.88 mg/kg and B 35.08 mg/kg.Conclusion] The order of the nutrient requirement in high yield orchard was: K>Mg>N>Fe>Ca>B>P>Zn and that in low output orchard was:B>P>K>Zn>N>Fe>Mg>Ca. |
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| Keywords: | Pyrus pyrifolia Nak cv Jinhua Nutrient element in leaf Determination and analysis Fertilizer |
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