热带作物学报2011，Vol.32Issue(5)：821-827,7.DOI:10.3969/j.issn.1000-2561.2011.05.009
尿素转化的硝态氮在3种母质砖红壤中垂直运移特征初步研究
Primary Study on the Leaching Character of the NO3——N from Urea in Three Different Parent Material Soil
摘要
Abstract
With the purpose of studying the leaching character of the NO3--N from urea in the soils developed from granite, basalt, shale, with the no-fertilization management as the check, the soil solutions from the 20 cm, 60 cm, 100 cm, 200 cm soil depth layers of the 3 kinds of soils were pumped using a large percolation equipment and the concentration change of NO3-N was continuously analyzed. The results indicated that the NO3-N from the nitrogen urea could move to the 20 cm soil depth layer in the granite soil and accumulated in the layer; It could move to the 60 cm soil depth layer in the basalt soil with a little longer time; It could move to the 200 cm soil depth layer in the shale soil with a shorter time. And the total amount of the NO3-N from the urea was different in the three soils, and the sequence of the amount was shale>basalt soil>granite soil.关键词
母质土壤/运移/土壤溶液/硝态氮浓度Key words
Different soil parent material/Leaching/Latosol/The concentration of NO3--N分类
资源环境引用本文复制引用
茶正早,闫良,华元刚..尿素转化的硝态氮在3种母质砖红壤中垂直运移特征初步研究[J].热带作物学报,2011,32(5):821-827,7.基金项目
海南省自然科学基金(No.809030) （No.809030）
中国热带农业科学院橡胶研究所基本业务专项基金[No院YWFZX2010-5(N)]. （N）
