Application of Fuzzy Clustering Method on Climatic Ecological Division of Wheat in Henan Province

doi:10.3321/j.issn:1000-7091.1995.04.001

Abstract

Abstract: Twelve climatic factors affecting wheat productive tillering rate, kernel number per spike, thousand-grain weight at 8 typical sits were caculated and analysed by fuzzy clustering method.Henan province was divided into four parts when λ= 0.857,they were south of Yu (Yu is short name for Henan), north of Yu, middlenorth of Yu and middlesouth of Yu.The distributive principles of wheat varieties and characteristics of growth and the main measures of harvesting higher wheat yield in their climatic ecological regions were discussed on the results.

Key words: Wheat, Fuzzy clustering method, Climatic ecological division, Henan province

CLC Number:

Zhang Shicheng, Li Jingxiang, Yang Xiaoli. Application of Fuzzy Clustering Method on Climatic Ecological Division of Wheat in Henan Province[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(4): 1-5. doi: 10.3321/j.issn:1000-7091.1995.04.001.

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