Method for producing selenium-rich ecological rice

Abstract

The invention discloses a method for producing selenium-rich ecological rice. The method comprises the following steps of: adding water into a selenium-rich organic fertilizer for diluting by 600 times to form selenium-rich organic fertilizer solution; soaking rice seeds by using a soaking medicament for 12-18 hours, soaking the seeds by using the selenium-rich organic fertilizer solution for one day, accelerating germination and sowing; during fertilizer application at the seedling stage of paddy rice, applying the selenium-rich organic fertilizer to a seedling bed in an amount of 20-50kg/100m ; at the breaking stage and milk-ripe stage of the paddy rice, spraying a selenium-rich organic fertilizer which is diluted with water by 700 times onto the leaf surfaces of paddy rice once respectively; and harvesting ripened paddy rice. According to the selenium-rich rice prepared by the method, the content of selenium is 0.2mg/kg, and the content of zinc is 15mg/kg, so that the standard of superior selenium-rich rice is reached; and meanwhile, the self-made selenium-rich organic fertilizer is prepared by adopting a reasonable proportion and a reasonable preparation process, the synergetic effects of the element selenium and other elements such as zinc, silicon, ferrum, molybdenum, aluminum and the like are used fully, soil pollution can be prevented effectively, and the soil structure and quality are improved.