土壤调理剂在恩施利川水稻上的施用效果研究

Application effect of soil conditioner on Enshi Lichuan rice

湖北省恩施州利川地区土壤硒含量高。文章通过开展大田试验,研究5种不同配施方式对当地水稻土壤硒形态、土壤硒有效性、水稻硒含量等的影响。结果显示:5种处理后利川土壤硒形态变化不明显,土壤pH均有所提高,土壤有效硒含量和水稻籽粒硒含量均有一定程度的提高,其中生石灰+小麦生物炭对水稻籽粒中硒含量的提高有极显著影响。本研究结果对于恩施天然富硒土壤的开发利用提供了实际参考价值,对于当地富硒产业发展具有一定的指导意义。

The soil selenium content in Lichuan area of Enshi prefecture,Hubei province is high.Through field experiments,this article studied the effects of five different fertilization methods on the selenium forms in local rice soil,soil selenium availability,and rice selenium content.The results showed that there was no significant change in soil selenium forms in Lichuan after the five treatments,and the soil pH value increased.The available selenium content in soil and the selenium content in rice grains increased to a certain extent.Quicklime+wheat biochar had a very significant impact on the improvement of selenium content in rice grains.The results of this study provide practical reference value for the development and utilization of natural selenium rich soil in Enshi,and have certain guiding significance for the development of local selenium rich industry.