摘要
通过对鄂南丘陵一典型集水面棕红壤及作物含硼的取样分析,结果表明,在同一集水面梯田的耕作层土壤中,上部旱地热水溶性硼含量高于下部水田,中下部水旱轮作田最低;热水溶性硼的剖面分布具有明显的表层富集现象,富集程度为:下部水田>上部旱地>中部水旱轮作田;土壤热水溶性硼含量与pH,土壤有机质成正比;而硼的植物有效性还与土壤水分状况有关。
In this paper, the brown-red soil and crop B concentration in typical catchment in south Hubei Province are analysed. The results show that the HWSB is higher in top dryland than in bottom paddy, and HWSB in the middle water and dry rotation field is the lowest. According to the soil profile analysis, the soil HWSB is assmbled in soil surface, assmbled intensity is the bottom paddy>the top dryland> the middle water and dry rotation field. The HWSB is direct proportion with pH, organic matter, and B plant availablity is affectd by soil water.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1997年第2期156-160,共5页
Journal of Huazhong Agricultural University
基金
国家"八五"攻关课题"鄂南棕红壤丘陵地区综合治理和持续发展试验区"资助
