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在玉米、大豆和水稻上试用不同剂量的亚硒酸钠和含硒腐植酸复合肥．结果表明，含硒腐植酸复合肥能显著提高３种作物籽粒的产量和硒含量，是一条低成本高效益的增硒途径．
In corn, soybean and rice try different doses of sodium selenite and selenium-containing selenium compound fertilizer. The results showed that the selenium-enriched humic acid compound fertilizer can significantly increase the grain yield and selenium content of the three crops and is a low-cost and high-efficiency selenium-enriching way.