| 辽西地区水肥处理对核桃叶水势的影响 |
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| 引用本文： | 李增兴,李斌,唐凤德. 辽西地区水肥处理对核桃叶水势的影响[J]. 辽宁林业科技, 2013, 0(6): 11-13 |
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| 作者姓名： | 李增兴 李斌 唐凤德 |
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| 作者单位： | [1]建昌县林业局,辽宁建昌125300 [2]辽宁大学环境学院,辽宁沈阳110036 |
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| 摘 要： | 采用312-D最优饱和设计,在辽西地区开展水肥试验,研究不同水肥处理对2年生核桃幼苗叶水势的效应.结果表明：叶片水势的最适条件为土壤含水率17.52％,施磷570.56 kg/hm2附近;氮具有降低水势效应,氮磷耦合对叶片水势具有相互替代效应;水磷耦合对叶片水势具有相互促进的效应.在生产实践中,合理控制水肥才能提高核桃生产效应.
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| 关 键 词： | 核桃 水肥耦合 叶片水势 正交试验 |
Effects of water-fertilizer coupling on leaf water potential of Juglans regia in western Liaoning |
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| LI Zengxing,LI Bin,TANG Fengde. Effects of water-fertilizer coupling on leaf water potential of Juglans regia in western Liaoning[J]. Liaoning Forestry Science and Technology, 2013, 0(6): 11-13 |
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| Authors: | LI Zengxing LI Bin TANG Fengde |
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| Affiliation: | 1 .Forest Bureau of Jianchang, Jianchang 125300,China;2.College of Environmental Science, Liaoning University, Shenyang 110036, China) |
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| Abstract: | With 312-D optimized saturation design, the water and fertilizer regulating and conlrolling experience was conducted in semi-arid region of westem of Liaoning province on Juglans regia to study water potential, and a regressive mathematical model was set up. The result shows that the optimum state was water content in the soil 17,52% and phosphorus 570.56 lkg. hm-2. Therefore, only can reasonable conlrol of water and fertilizer improve productive effects ofJuglans regia trees in production processes. |
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| Keywords: | Juglans regia water-fertilizer coupling water potential orthogonal design |
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