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近年研究表明,硒能提高人体免疫功能和防治克山病等疾病,对某些作物表现一定增产效应。为明确黑龙江省土壤含硒状况并通过给作物施肥补充硒元素以增加产量,我们进行了四年探索试验。 研究结果表明,黑龙江省土壤全硒量绝大多数在中等(0.175～0.40ppm)水平以下,是缺硒省分。其中大小兴安岭山区和张广才岭老爷岭山区为明显缺硒和潜在缺硒区。三
In recent years, studies have shown that selenium can improve human immune function and prevent Keshan disease and other diseases, the performance of some crops increased yield effect. In order to clarify the condition of selenium in soil in Heilongjiang Province and to increase selenium production by fertilizing the crop, we conducted a four-year exploratory experiment. The results show that the vast majority of soil total selenium in Heilongjiang Province in the medium (0.175 ~ 0.40ppm) below the level of selenium-deficient. Among them, the size of Xingan Mountains and Zhang Guangcai Laoyeling mountain area are obviously selenium deficiency and potential selenium deficiency area. three