期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2004

30

3

229-232

10.3321/j.issn:1007-1032.2004.03.009

湖南省科技厅资助项目（02SSY3033）;湖南省科技厅资助项目（02SSY3033）;湖南省农业厅资助项目（2.20）

本校为第一机构

采用野外调查采样和室内分析,对湖南长沙市郊区6个蔬菜基地土壤的立地条件和肥力特性进行了系统研究.结果表明:6个基地的土壤均由分布在河流两岸的河谷阶地和河漫滩的河流沉积物以及分布在红壤丘岗谷地的第四纪红色粘土发育而成.地势平坦、开阔,海拔40～50 m之间.土壤质地为轻壤至重壤,砂粘适中,其总体养分状况良好,有机质、氮素、磷素和钾素含量均很丰富,尤其是土壤全磷和有效磷含量极高,远高于一般高产耕地土壤和自然土壤,是菜园土壤的一大显著肥力特征.其中,以陈家渡基地的土壤肥力水平最高,卷塘村基地的土壤肥力水平最低;不同母质发育的土壤中,以冲积物发育的冲积菜园土的肥力水平较第四纪红...

By field investigation and sampling and laboratory analysis,this paper is an attempt to study the local conditions and fertility properties of the chief type vegetable soils of 6 bases in the suburb of Changsha.The results show that the vegetable soils are developed from the alluvial deposit in the alluvial terrance and quarternary red clay in the hilly valley and are located in the lower smooth terrain.The soil texture ranges from lightly loamy to heavily loamy,and is suitable to crop growth.The nutrient status of the vegetable soils in the su...