开阳富硒农作物筛选研究

Research on how to Select of Se-enriched Crops in Kaiyang,Guizou Province

本文通过对贵州开阳禾丰乡和冯三镇富硒岩石出露区出产农作物的野外调查和室内分析研究，筛选了该区可供开发种植富硒农作物的土壤农田和农作物品种。研究结果表明：土壤硒含量为0．46～2．31mg／kg，均值为1．42mg／kg，冯三镇的安坪村、金龙村和禾丰乡的杨柳坝、甘塘村一带的土壤都达到了富硒水平；农作物的含硒量为0．007～0．61mg／kg，筛选出的主要农作物有水稻、玉米、辣椒、油菜、洋芋等，大都达到了富硒等级。

In this paper the crop species, and crop farmland soils were selected, which can be exploited for planting Se-enriched crops on the basis of field investigation and indoor analysis of crops growing in Se-enriched rock-distributed districts in Hefeng Country and Fengsan Town in the region of Kaiyang of Guizhou Province. The result indicated that soil Se contents are within the range of 0.46-2.31mg/kg,with an average of 1.42mg/kg,all soils in Anping and Jinlong villages of Fengsan Town ,Yangliuba and Gantang villages of Hefeng Country have reached Se-enrichment level, and the Se contents of crops are within the range of 0. 007 -0.7 lmg/kg. The main crops such as ripe, corn, cayenne, cole, and yam all have reached Se-enrichment level.