广东省香蕉主产区蕉园土壤养分的吸附特性研究

Evaluation on Characteristics of Nutrient Absorption of Soils in Banana Plantation in Guangdong Province

为了探明广东省香蕉主产区蕉园土壤对各主要营养元素的吸附特点,本论文应用土壤养分状况系统研究法对广东省番禺南沙点、东涌点和灵山点、高州沙田点、博罗长宁点、四会大沙点及中山横档点七个有代表性的蕉园土壤进行了系统研究。结果表明:(1)蕉园土壤对磷的吸附能力大小顺序为:博罗长宁>番禺灵山>番禺南沙>四会大沙>中山横档>番禺东涌>高州沙田。(2)蕉园土壤对钾的吸附能力大小顺序为:中山横档>番禺南沙>番禺灵山>番禺东涌>博罗长宁>四会大沙>高州沙田。(3)蕉园土壤对硫的吸附能力大小顺序为:高州沙田>番禺灵山>番禺东涌>中山横档>博罗长宁>番禺南沙>四会大沙。(4)蕉园土壤对硼的吸附能力大小顺序为:博罗长宁>番禺灵山>四会大沙>番禺南沙>中山横档>高州沙田>番禺东涌。(5)番禺南沙和东涌点蕉园土壤对锰的吸附固定能力很强;番禺灵山点蕉园土壤对铜的吸附强于番禺南沙点,但两者都非常弱;番禺南沙和灵山点蕉园土壤对锌的吸附较强,番禺东涌点蕉园土壤则较弱。

In order to verify the soil characteristics of absorbing main nutritive elements of soils in Banana plantation in Guangdong Province, the soils from seven areas were sampled and determined.The results showed that the best abilities of soils to absorb and fix phosphorus were in Changning, K in Hengdang, S in Shatian, B in Changning and Mn in Nansha..