One kind of selenium-enriched stable fertilizer Rice special method for its preparation

Technical Field The present invention relates to the production of fertilizers, in particular, it relates to one kind of selenium-enriched stable fertilizer Rice specific method for its preparation. The stable selenium-enriched Rice special fertilizer, which is a nutrient feed, stabilizing substances, and adhesive compositions of matter envelope; nutrient elements nitrogen, phosphorus, potassium, selenium; nutrients of nitrogen, phosphorus, potassium, selenium mass ratio of (1 to 2.5) ︰ (0.4 to 1) ︰ (0.5-2) ︰ (0.001 to 0.005); stabilizing substance content of 2% to 10% of the content of nitrogen; bonding substance content envelope as the total amount of raw material 2% to 5%. The present invention provides stable selenium enriched Rice special fertilizer, high stability, can be applied to improve the effectiveness of soil selenium, selenium fixed by reducing soil, but also to avoid excessive release of toxic selenium effective plant body produced, during the growth of rice, the rice needs only applied once a sufficient amount of selenium fertilizer to meet the demand of rice in the whole growth process.