| 苹果施用硝酸钙的效果 |
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| 引用本文： | 何为华,黄显淦,王瑞云,李山虎,黄春霞,杨文芳.苹果施用硝酸钙的效果[J].果树学报,1998(1). |
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| 作者姓名： | 何为华 黄显淦 王瑞云 李山虎 黄春霞 杨文芳 |
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| 作者单位： | 中国农业科学院郑州果树研究所，中国农业科学院郑州果树研究所，开封市林场，安徽省砀山果园场，安徽省砀山果园场，安徽省砀山果园场 河南郑州450004，河南郑州450004 |
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| 摘 要： | 通过对苹果树叶面喷和土施试验证明:(1)叶面喷(包括盆栽和田间试验)0.3％Ca液2次,能促进树体生长、增加叶干重、提高树体N、K、Ca等营养元素水平,并明显提高果实产量和品质。在年生育期的前期或后期喷Ca,均能进入果实中,前期进入量高于后期。(2)土施Ca(NO_3)_2,同施用筹N量的尿素相比,叶片中N、P、K、Ca、Fe、Zn等元素含量,均有明显提高,并有增产和提高品质作用。在土施方式中,以Ca(NO_3)_2与有机肥混施为佳,但土施Ca(NO_3)_2对提高果实中Ca含量未显出明显效果。(3)总体效果,土施不如叶喷。
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| 关 键 词： | 苹果 叶面喷施 土壤施用 硝酸钙 |
Studies on the Effect of Application of Calcium Nitrate on Ap-ple Trees |
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| He Weihua,Huang Xiangan,Wang Ruiyun,Li Shanhu,Huang Chunxia,and Yang Wenfang.Studies on the Effect of Application of Calcium Nitrate on Ap-ple Trees[J].Journal of Fruit Science,1998(1). |
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| Authors: | He Weihua Huang Xiangan Wang Ruiyun Li Shanhu Huang Chunxia and Yang Wenfang |
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| Abstract: | Calcium nitrate Ca(NO3)2] applied soil drench method or foliar spraying increased tree growth,leaf dry weight and N,K and Ca concentrations in the leaf. Yield and fruit quality were al-so improved. Early spraying,21 and 35 days after bloom,increased Ca uptake into the fruit than late spraying in July and August. Both early and late Ca spraying increased fruit Ca content com-pared with the control. Calcium nitrate applied in soil resulted in higher concentrations N,P,K, Ca.Fe and Zn in the leaf and higher yield and better quality,but Ca content in fruit was not in-creased significantly. |
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| Keywords: | Apple Foliar spraying Soil drench Calcium nitrate |
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