烟草科技2017，Vol.50Issue(3)：23-30,8.DOI:10.16135/j.issn1002-0861.2016.0351
玉溪烟田土壤pH和主要养分平均含量及变化特征
Variations of soil pH and main soil nutrient contents in Yuxi
摘要
Abstract
To achieve modular and precision fertilization for flue-cured tobacco in Yuxi,the distribution characteristics of soil nutrients in tobacco planting fields in Yuxi were measured and graded at county level. The results showed that in 2008,villages and towns with higher soil nutrient contents were mainly distributed in eastern river basins; and soil nutrient contents in tobacco-planting soils from dam lands were higher than those from mountainous regions. In 2015,villages and towns with higher N and P soil contents extended from eastern river basins to west and south areas. The available N and P contents in tobacco-planting soils from mountainous regions were higher than those from dam lands. Comparing with the results from 2008,the soil available N,P and K contents increased by 92.54%,24.32% and 34.58% in mountainous regions,and by 20.53%,4.15% and 42.21% in dam lands in 2015,respectively. Within seven years,the soil pH and organic matter contents increased by 8.99% and 2.38% on average in mountainous regions,whiles on average these contents decreased by 5.81% and 10.77% in dam lands,respectively. The pH and organic matter content tended to be around moderate levels. The results provide a reference for a modular and precision fertilization strategy in Yuxi for tobacco-planting soils.关键词
玉溪/烟田土壤/pH/土壤养分/分级/分布/坝地/山地Key words
Yuxi/Tobacco-planting soil/pH/Soil nutrient/Grading/Distribution/Dam land/Mountainous region分类
农业科技引用本文复制引用
卜令铎,李江舟,张立猛,焦永鸽,计思贵,李天福..玉溪烟田土壤pH和主要养分平均含量及变化特征[J].烟草科技,2017,50(3):23-30,8.基金项目
云南省烟草公司科技项目"玉溪植烟土壤养分变化及施肥对策研究与应用"(2015YN13). （2015YN13）
