江西农业学报2024，Vol.36Issue(2)：68-76,9.DOI:10.19386/j.cnki.jxnyxb.2024.02.011
毕节植烟土壤K、Ca、Mg元素的分布特征与评价
Distribution Characteristics and Evaluation of K,Ca and Mg in Soil in Bijie Tobacco-growing Area
摘要
Abstract
Soil samples from 76 tobacco fields and 273 C3F tobacco leaves in 8 tobacco-growing counties(cities)in Bijie City,Guizhou Province in 2022 were analyzed.The results showed that the average pH of soil in Bijie was 6.29,in which,pH of the soil was relatively high in Qianxi and Hezhang,but was relatively low in Dafang and Jinsha.In most areas,available K of the soil was at high or extremely high level,and exchangeable Mg was at suitable or relatively high level.However,the content of available K and exchangeable Mg in the soil was still lacking in a small number of tobacco areas,and the proportion of exchangeable calcium in soil varied greatly.The changes of K and Ca contents in tobacco leaves were basically consistent with those in soil,and physiological Mg deficiency may occur in some tobacco leaves.The above results indicate that the content of K,Mg and Ca of soil in Bijie tobacco areas are generally good,but some tobacco areas should pay attention to the application of K and Ca in the soil.At the same time,it is necessary to pay attention to the antagonism between Mg and other nutrients,which may cause physiological magnesium deficiency in tobacco leaves.关键词
毕节/植烟土壤/中部烟叶/养分状况/贵州Key words
Bijie/Tobacco-growing soil/Middle tobacco leaf/Nutrient status/Guizhou分类
农业科学引用本文复制引用
张龙,刘海伟,王朋,李彩斌,陈秀娥,陈德慧,黄兰,喻奇伟,彭华伟,顾姣,陈平..毕节植烟土壤K、Ca、Mg元素的分布特征与评价[J].江西农业学报,2024,36(2):68-76,9.基金项目
贵州省烟草公司毕节市公司科技项目(2021520500240048) （2021520500240048）
中国农业科学院科技创新工程项目(ASTIP-TRIC03). （ASTIP-TRIC03）
