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以水稻品种特优582为试材,研究常规拖拉机耕作和粉垄耕作2种耕作方式对水稻富硒(Se)营养化及重金属含量的影响。结果表明,粉垄耕作有利于提高水稻产量和经济效益,分别提高了4.19%和6.36%;粉垄稻谷硒(Se)、锌(Zn)元素含量分别增加了78.14%和15.99%;砷(As)、铬(Cr)含量比对照下降;铅(Pb)、总汞(Hg)、镉(Cd)含量比对照增加,其含量在国家标准限量范围内。因此,粉垄耕作稻田对稻谷产生的营养性影响利大于弊。
The rice variety Teyou 582 was used as experimental material to study the effects of conventional tillage and powder tillage on the nutrient availability and heavy metal content of selenium in rice. The results showed that tillage with ridges and furrows was beneficial to the increase of rice yield and economic benefits by 4.19% and 6.36%, respectively. The contents of selenium and zinc increased by 78.14% and 15.99%, respectively. ), And chromium (Cr) decreased compared with the control. The contents of Pb, Hg and Cd increased as compared with the control, and the content of Cr was lower than the national standard. Therefore, the impact of tillage paddy fields on the nutritional impact of rice outweigh the disadvantages.