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中国农学通报 ›› 2011, Vol. 27 ›› Issue (12): 124-129.

• 农学 农业基础科学 • 上一篇    下一篇

安徽省水旱轮作区土壤养分综合评价方法研究

王勇 常江   

  • 收稿日期:2010-11-30 修回日期:2010-12-21 出版日期:2011-05-25 发布日期:2011-05-25
  • 基金资助:

    国家科技支撑计划项目“沿淮中低产田地力提升和作物丰产增效技术集成与示范”

Research on Soil Nutrient Comprehensive Evaluation Method of Rice Field-Upland Field Rotation of Anhui Province

  • Received:2010-11-30 Revised:2010-12-21 Online:2011-05-25 Published:2011-05-25

摘要:

此文选择了影响土壤养分的主要因素:全氮、有机质、速效钾、速效磷及微量元素有效锌和有效硼6个指标,用模糊数学的方法确定其隶属度函数并进行处理,运用“专家评分系统”确定各指标的权重,根据分析结果对6个县(区)的土壤养分综合状况进行模糊评判。结果表明,所分析的6个县(区)贵池和庐江地区土壤综合养分水平属于二级,较高水平;肥东、无为和居巢地区属于三级,中等水平;明光则属于四级,较低水平。同时应用指数和法与之比较,发现二者评价结果完全一致,均可用作土壤养分水平的综合评价。

关键词: 基因定位, 基因定位

Abstract:

This paper chosen the main influence factors of soil nutrients including total nitrogen, organic matter, available phosphorus, available potassium and two kinds of trace elements zinc and boron these 6 indicators were selected to build model by fuzzy mathematical method to determine their membership function and process. The weight of each indicator was determined by the "Expert Grading System". And Integrated Soil Nutrient Status of each county (district) could be calculated by using the result of fuzzy evaluation. Results show that Integrated Soil Nutrient Status of Guichi and Lujiang County (District) belonged to second stage, being higher level; Feidong, Wuwei and Juchao County (District) belonged to third stage , being secondary level; Mingguang County (District) belong to forth stage , being lower level. In addition, comparing the results of fuzzy evaluation with exponential sum method was consistent. These two kinds of methods could be used for soil nutrient comprehensive evaluation.