期刊论文

中文

湖南农业科学

1006-060X

2010

13

52-56

10.3969/j.issn.1006-060X.2010.13.019

湖南省烟草专卖局2009年度科研项目（09-11Aa02）；

本校为第一机构

在湘南的江华、新田和常宁3个主产烟区分别采集同一地形部位的由相同母质发育的烟稻轮作田和稻稻连作田耕层混合土样和剖面分层土样,进行了烟稻轮作田和稻稻连作田土壤肥力状况的比较研究。结果表明:烟稻轮作田和稻稻连作田土壤的耕层有机质、全N、全P、全K、碱解N含量以及土壤pH值之间差异不显著,而土壤有效P、速效K含量则烟稻轮作田显著高于稻稻连作田,表明植烟季P、K肥施用水平过高。在土壤剖面中,土壤有机质、全N、碱解N、全P、有效P、速效K含量大部分都随土层深度增加而减少,土壤全K及土壤pH随深度的变化则较复杂。

The mixed soil samples of topsoil and layered soil samples of section were collected from tobacco-rice rotation paddyfield and rice-rice rotation paddyfield at Changning, Jianghua and Xintian in the Southern Hunan, which are from the same parent material and in the same topographic position. A comparative study was conducted to soil fertility of tobacco-rice rotation paddyfield and rice-rice rotation paddyfield. The results indicated that the tobacco-rice rotation soil and rice-rice rotation soil have no significant difference in the contents of organic matte, total N, total P, total K, availa...