廣東植煙土壤肥力綜合評(píng)價(jià)

Comprehensive evaluation of soil fertility for growing tobacco in Guangdong

摘要: 以廣東省主要煙區(qū)11 個(gè)縣（市）的516 個(gè)耕層土壤樣本的養(yǎng)分分析數(shù)據(jù)，采用Fuzzy 綜合評(píng)判法對(duì)煙區(qū)土壤綜合肥力水平進(jìn)行評(píng)價(jià),。結(jié)果顯示,，全省植煙土壤的IFI 值為0.590，綜合養(yǎng)分肥力總體評(píng)價(jià)為強(qiáng)Ⅲ級(jí),。其中以Ⅱ,、Ⅲ級(jí)養(yǎng)分肥力的土壤為主，共占64.15%,；按植煙土壤類型劃分,，紅火泥地的IFI 值為0.531，牛肝土田的IFI 值為0.751,，沙泥田的IFI 值為0.529,，石灰土田的IFI 值為0.738，紫色土的IFI 值為0.639,。

Abstract: The Fuzzy comprehensive adjust method was adopted to evaluate soil fertility level in several tobacco planting regions based on nutrient analytical data of 516 topsoil samples from 11 counties（ cities）in Guangdong Province. The results showed that the average IFI value of tobacco growing soils was 0.590,，and generally the comprehensive nutrient fertility was the third grade. Most of them belonged to the second and third grade which accounted for 64.15%. According to the types of tobacco growing soil，the IFI value of Honghuonidi,Niugantutian, Shanitian,calcareous soil and purple soil was 0.531,，0.751,，0.529，0.739 and 0.639 respectively.