期刊论文

中文

土壤通报

0564-3945

2015

46

1

105-110

10.19336/j.cnki.trtb.2015.01.018

红云红河集团云南基地烤烟品种立体优化布局研究(HYHH2012YL03) 曲靖市精益烟叶生产研究与应用(QJ201416)资助

本校为第一机构

分析了云南省曲靖不同海拔高度烟区3690个植烟土壤样本的PH和养分状况。研究表明:曲靖烟区土壤PH为6.3 ± 0.9,变异系数为13.75%;pH处于适宜烤烟生长的5.0 ~ 7.0的土壤样本占到68.58%;该烟区海拔介于1322 ~ 2380 m,变化较大,土壤pH随海拔高度的增加而下降;将不同海拔高度进行分组后,呈现出土壤pH与土壤养分之间的相关性随海拔高度的变化而变化;按土壤PH进行分组后,土壤养分含量在组间存在极显著差异,在土壤pH为5.5 ~ 6.5时,土壤有机质、全氮、速效磷、有效钙、有效镁、有效铜、有效锰、有效硫含量均很丰富,土壤碱解氮、速效钾含量适中,土壤全磷、全钾、有效硼含量偏低。

The research analyzed the p H values and soil nutrient contents of 3690 soil samples, selected from the tobacco fields at different altitudes in Qujing, Yunnan Province. The results indicated that the p H value was about 6.3± 0.9 and its variation coefficient was 13.75% in tobacco field of Qujing. The range of p H suitable for tobacco growth is 5.0 ~ 7.0. This level p H accounted for 68.58% of soil samples, which located at altitude of 1322 ~ 2380 m. The soil p H declined with the increase of altitude. The correlations between soil p H and nut...