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1982年起我们对全县稻田土壤中有效微量元素进行了调查,本文就其有效态锌、锰、铜、铁的含量和分布进行总结。土壤样品是按土壤类型、成土母质及各类土壤面积的大小采集,共108个剖面,计样品169个,其巾三层以上的剖面15个,平均每个剖面代表面积2100余亩。分析方法,采用0.005M 二乙三胺五醋酸(DTPA)提取,原子吸收分光光度计测定。(一)稻田土壤中徽量元素的含量分布93个耕层样测定结果(表1)表明:荔浦县稻田的有效性微量元素是不均衡的。
Since 1982, we investigated the available trace elements in paddy soils in this county, and summarized the contents and distributions of available zinc, manganese, copper and iron. Soil samples were collected according to soil type, soil parent material and various types of soil area. A total of 108 sections with 169 samples were included. There were 15 sections with more than three layers of the soil samples, with an average area of more than 2,100 mu. Analytical method, using 0.005M diethylenetriamine pentaacetic acid (DTPA) extraction, atomic absorption spectrophotometer. (I) Content distribution of soil trace elements in paddy soil The results of 93 soil layer measurements (Table 1) show that the available trace elements in paddy fields in Lipu County are not balanced.