热带作物学报2012，Vol.33Issue(10)：1749-1757,9.DOI:10.3969/j.issn.1000-2561.2012.10.007
3种母质砖红壤中钾素垂直运移特征初步研究
Vertical Leaching Character of K+ in Soils Developed from 3 Parent Rocks
摘要
Abstract
The objective of this study was to investigate the vertical movement characteristics of K+ in the soils developed from 3 parent rocks. The samples of soil solution with fertilization treatment at vertical depths (20. 60. 100, 200 cm) underground and the control with no fertilization soil were collected with a field infiltration equipment. The changes of K+ concentration were studied continuously for more than 7 months. The results showed that it could intensify the vertical leaching of K+ in soils developed from granite after fertilization, but no obvious changes in other soils were observed. And the K+ from fertilizer had different movements feature in the 3 soils after fertilization. In the soil developed from gneiss, K* couldn't move to 20 cm soil depth until 12-17 d and the furthest distance was 100 cm. In soil developed from granite, K+ couldn't move to 20 cm soil depth until 2~3 d. There was no significant moving feature in soil developed from basalt.关键词
砖红壤母质/土壤溶液/K+浓度/垂直运移Key words
Parent rock/ Soil solution/ K+ concentration/ Vertical leaching分类
农业科技引用本文复制引用
闫良,茶正早,罗微,华元刚..3种母质砖红壤中钾素垂直运移特征初步研究[J].热带作物学报,2012,33(10):1749-1757,9.基金项目
中国热带农业科学院橡胶研究所基本科研业务费专项资助[XJSYWFZX2010-06(N)] （N）
国家天然橡胶产业技术体系建设专项资金(No.CARS-34-GW6)资助. （No.CARS-34-GW6）
