| 新疆苹果黄叶病病因的系统方法分析 |
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| 引用本文： | 周燕,高述民.新疆苹果黄叶病病因的系统方法分析[J].石河子大学学报,1992(4). |
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| 作者姓名： | 周燕 高述民 |
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| 作者单位： | 石河子农学院园林系
(周燕)，石河子农学院园林系(高述民) |
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| 摘 要： | 苹果树体是一个耗散结构系统,必须与环境不断地进行物质、能量、信息的交换,取得负熵,才能使树体得以生存和进条。本文应用系统方法分析出:由于树体受到扰乱——环境PH值和盐分浓度增加,使树体吸收和利用有效态铁(Fe~(2+))困难,树体系统由有序状态变为无序状态而发生黄叶病。
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| 关 键 词： | 耗散结构 黄叶病 扰动 土壤PH值 土壤盐分浓度 |
Leaf-Yellows' Reasons Analysis of Xinjiang Apple Tree by Systematic Way |
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| Zhou Yan Gao Shuming.Leaf-Yellows'''' Reasons Analysis of Xinjiang Apple Tree by Systematic Way[J].Journal of Shihezi University(Natural Science),1992(4). |
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| Authors: | Zhou Yan Gao Shuming |
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| Institution: | Department of Horticulture and Forestry |
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| Abstract: | An apple tree is a system of dissipative structure. It must continue to exchange matter, energy and informations forthe surroundings; to obtain negative-entropy and make itself subsist and evolve. This article analyses by systematic way and points out; because of the affection-an increase of soil PH and salts-density in surroundings, the tree obstracts and applies the effectiveion of iron (Fe2+) in difficult, and the tree-system changes the state from an orderly way to a disorderly way and occurs Leaf-yellows. |
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| Keywords: | dissipative structure leaf-yellows affection soil PH soil salts density |
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