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淮北砂姜黑土大豆施硒试验结果表明:每公顷施用亚硒酸钠2kg以下,不会导致大豆减产。每公顷施硒4kg以下,不会出现大豆硒中毒症状。每公顷施硒2kg籽粒产量最高。大豆地上部硒浓度与积累量随硒施用量增加而提高,但籽粒硒吸收量明显大于茎叶。随着施硒量的增加,试验土壤的硒含量也相应提高。
The application of selenium in Huaibei Shajiang black soil showed that application of sodium selenite under 2kg per hectare would not reduce the yield of soybean. Application of selenium per hectare less than 4kg, will not appear symptoms of selenium poisoning. Selenium 2kg per hectare yield the highest grain yield. The concentration and accumulation of selenium in the upper part of soybean increased with the increasing of selenium application, but the grain selenium absorption was obviously larger than that of stem and leaf. With the increase of the amount of selenium, the selenium content of the test soil also increased accordingly.