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机构地区:[1]湖南农业大学烟草研究院,长沙410128 [2]云南省烟草公司文山州公司,文山663000
出 处:《作物研究》2014年第4期375-378,共4页Crop Research
基 金:中国烟草总公司云南省公司科技计划项目(2012YN15)
摘 要:以云南省文山烟区7个县的167个植烟土壤样本的养分含量为分析数据,采用Fuzzy综合评判法对烟区土壤综合肥力水平进行评价。结果表明,文山烟区主要以红壤和黄壤两种类型为主,植烟土壤中二级肥力占总样本数比例为50.30%,土壤肥力较好。描述性统计分析和Fuzzy综合评判法均表明,棕壤土和水稻土的肥力最高,其IFI值分别为0.797和0.774,红壤和黄壤的土壤肥力中等,其IFI值分别为0.637和0.638,石质土的IFI值为0.584,属于三级肥力土壤,肥力相对较低。The Fuzzy Comprehensive Adjust method was adopted to evaluate soil fertility level in several tobacco planting regions based on nutrient analytical data of 167 soil samples from 7counties in Wenshan,Yunnan Province.The results showed that there were mainly red and yellow tobacco soil in Wenshan,50.30%of the samples were the secondary fertility,soil fertility was better.Analysis of descriptive statistical and Fuzzy Comprehensive Adjust showed that the fertility of brown soil and paddy soil were highest,the average IFI value of these two soils was 0.797 and 0.774 respectively.The fertility of red soils and yellow soils were higher,the average IFI value of soils were 0.7637 and 0.584 respectively.The average IFI value of stony soils was 0.584,the fertility of stony soils was lower.
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