摘要
采用土壤养分状况系统研究法,对海南岛两大典型香蕉种植园土壤进行了土壤的吸附特性研究。结果表明:①不同土壤对不同营养元素的吸附固定能力不同:②两种土壤对K、Cu、Zn的吸附固定作用比较弱,两者对Cu、Zn的吸附固定能力较接近,但对K的吸附固定作用有着明显的不同。③燥红土对P的吸附固定作用较强;④两种土壤部对B有着很强的吸附固定作用,其中燥红土在2～4μg/ml浓度时对B有着极其强烈的吸附固定作用;⑤砖红壤对0～80μg/ml浓度的S的吸附固定能力很强。而燥红土对S的吸附固定则比较弱;⑥砖红壤对0～5μg/ml内的Mn有着强吸附,燥红土对0～20μg/ml内的Mn有强吸附。
The soil nutrient systematic study method was employed in this paper to study characteristics of soil nutrient adsorption in two big typical banana plantations on Hainan Island. Results showed： （1） The two soils varied sharply in nutrient adsorbing capacity with nutrient; （2） Though both were quite weak in capacity of adsorbing K, Cu and Zn, and quite similar to each other in capacity of adsorbing Cu and Zn, they differed significantly in K adsorbing capacity; （3） Dry red soil was rather strong in P adsorbing capacity; （4） Both were very high in B adsorbing capacity, and especially when B content ranged between 2 - 4 μg/ml in dry red soil; （5） Latosol was very high in S adsorbing capacity particularly when S content was in the ragne of 0 - 80 μg/ml, but dry red soil was quite low; and （6） both latosol and dry red soil were high in Mn adsorbing capacity when the content of Mn was in the range of 0 - 5 μg/ml and 0 - 20 μg/ml, respectively.
出处
《土壤》
CAS
CSCD
北大核心
2008年第2期232-236,共5页
Soils
基金
农业部948项目"香蕉种质及相关生产技术引进与推广"(2003-Z32(B))
海南省重点科技计划项目"香蕉配方(平衡)施肥的应用技术研究"(06109)资助
关键词
吸附
养分
砖红壤
燥红土
系统研究法
Absorption, Nutrition, Latosol, Dry red soil, Systematic approach
