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生态学杂志 ›› 1992, Vol. ›› Issue (2): 27-29.

• 研究报告 • 上一篇    下一篇

用动态模型方法确定农药的合理施用浓度

张文军, 汪世泽, 刘绍友, 张永江   

  1. 西北农业大学, 陕西杨陵镇 712100
  • 收稿日期:1989-12-26 修回日期:1990-03-16 出版日期:1992-04-10

Determination of Rational Applying Concentration of Insecticides Using Dynamic Modelling Method

Zhang Wenjun, Wang Shize, Liu Shaoyou, Zhang Yongjiang   

  1. Northwest Agricultural University, Yangling, Shanxi Province 712100
  • Received:1989-12-26 Revised:1990-03-16 Online:1992-04-10

关键词: 舟山渔场, 鱼类群落, 种类组成, 非线性多维标度, 典范对应分析

Abstract: Improved Weibull's dynamic models are used to simulate the population dynamics of wheat aphids and their natural enemies. Parameters and integrated indices are compared to analyze the effectiveness of different concentrations of rogor oxide in controlling aphids and preserving natural enemies and on wheat yield.The range of rational applying concentrations is determined. The research method has been proven to be simple, practicable and valuable in comprehensive control of insect pests.

Key words: Zhoushan Fishing Ground, fish community, species composition, multi-dimensional scaling (MDS), canonical correspondence analysis (CCA)