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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (9): 6-9.doi: 10.11924/j.issn.1000-6850.casb15090028

Special Issue: 水稻

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Slow-release Properties of Early-rice Seed-coating Fertilizer

  

  • Received:2015-09-08 Revised:2015-10-26 Accepted:2015-11-04 Online:2016-03-29 Published:2016-03-29

Abstract: In order to explore the slow- release properties of early rice seed- coating fertilizer, the initial release rate, differential release rate and cumulative release rate of N, P and K in early rice seed-coating fertilizer were determined. The results showed that the initial release rate of early rice seed-coating fertilizer nutrients were less than 40%, the initial release rate of N was the fastest, then was that of K, and the release rate of P was the slowest. The differential release rates of N, P and K showed that the nutrients of early rice seed-coating fertilizer released evenly, which could meet the early growth demand of early-rice for nutrients and improve fertilizer use efficiency, so that the slow-release properties of early rice seed-coating fertilizer were good.