摘要
为查明文山州植烟土壤基本状况，提高烤烟施肥的科学性，对文山州2011年142套土样pH值及主要有效养分含量进行了分析，结果表明：（1）全州土壤pH平均值为6.23，总体适于烤烟种植。pH值处于最适区间5.5~6.5的土壤占样品总数的43.7%；（2）全州共有5种土壤类型，pH值平均值顺序依次为：红壤〈黄壤〈水稻土〈紫色土〈石灰土；（3）随着海拔升高，土壤pH值呈降低趋势；（4）土壤有机质、速效氮、速效磷及速效钾含量平均值均达到足量标准，适于烤烟种植，但分别有19.72%和16.68%的土壤缺磷和缺钾；（5）土壤pH值与速效氮含量呈显著负相关，与速效磷和速效钾含量则无显著相关性。有机质与速效氮和速效磷含量极显著相关，与速效钾含量显著相关。
Soil pH values and main nutrients in 142 samples collected from Wenshan tobacco growing areas were analyzed. Results showed that：（1） Soil pH values of Wenshan were generally suitable for tobacco cultivation, with average pH value of 6.23. About 43.7%of the soil were in the optimal zone,i.e. pH 5.5~6.5;（2） The average pH values of different soil types were in the following order：red soil〈yellow soil〈paddy soil〈purple soil〈calcareous soil;（3） pH values decreased as altitude increased;（4） The average contents of soil organic matter （SOC）, available nitrogen （N）, available phosphorus （P） and available potassium （K） were sufficient for tobacco growing. However, 19.72%and 16.68%of the soil samples lacked available P and available K respectively;（5）Negative significant correlation of soil pH value with available N was found. Highly significant positive correlations were found between SOC and available N and P. Correlation between SOC and available P was also significant.
出处
《中国烟草学报》
EI
CAS
CSCD
北大核心
2014年第1期61-64,共4页
Acta Tabacaria Sinica
基金
中国烟草总公司云南省公司科技计划项目(2012YN15)
