果树学报2011，Vol.28Issue(1)：15-19,5.
北京果园土壤养分和pH与微生物数量的相关分析及优化方案
Optimal schemes and correlation analysis between soil nutrient, pH and microorganism population in orchard of Beijing suburb
摘要
Abstract
The soil nutrient contents, pH and microorganism population in 0 to 40 cm soil depth were surveyed at total 48 orchards (apple, pear, peach and grape) in Beijing suburb. Multiple statistical analysis and linear program were used to study the major element, correlation and optimum values affecting soil nutrient contents and pH on population quantity of microorganism. The results showed that among soil organic matter (SOM), total N, available K, available Fe and soil bacterium, fungus, apple orchard occupies first place, grape and peach come second and pear is the lowest. The bacterium quantities had positive correlation markedly with SOM, available P and available B, and negative correlation significantly with total N content. The fungus quantities had positive correlation markedly with total N, available K and Cation exchange capacity (CEC). The actinomycetes quantities had positive correlation significantly with SOM, available Zn, B, while negative correlation with available P. The soil pH had negative correlation markedly with bacterium and fungus. Optimum values in soil nutrient contents, pH and population quantities of microorganism from August to October were obtained by linear program that results were 55.0 g· kg-1 in soil organic matter (SOM), 1.50 g·kg-1 to 3.00 g.kg-1 in total N, 20 to 200 mg· kg-1 in available P, 120 to 600 mg.kg-1 in available K, and 0.5 to 20.0 mg·kg-1, 10 mg.kg-1 in available Zn and available B respectively, value was 300 mmol· kg-1 for CEC, and pH 6.5. The key technical strategies for soil management of orchard in Beijing Suburb were accommodating the soil available B and Zn contents by improving SOM and CEC while reducing soil pH.关键词
果园土壤养分/土壤pH/微生物数量/多元统计分析/线性规划Key words
Orchard soil nutrient/ Soil pH/ Microbial quantities/ Multiple statistical analysis/ Linear program分类
农业科技引用本文复制引用
张强,魏钦平,齐鸿雁,王小伟,黄武仁,刘军,刘松忠..北京果园土壤养分和pH与微生物数量的相关分析及优化方案[J].果树学报,2011,28(1):15-19,5.基金项目
国家科技支撑课题(2008BAD92B08-4) （2008BAD92B08-4）
公益性行业(农业)科研专项(nyhyzx07-024) （农业）
