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中国农学通报 ›› 2016, Vol. 32 ›› Issue (9): 6-9.doi: 10.11924/j.issn.1000-6850.casb15090028

所属专题: 水稻

• 农学 农业基础科学 • 上一篇    下一篇

早稻种子包衣肥的缓释性能研究

文卓琼,熊文洋,熊海蓉,熊远福,文祝友,王楠楠   

  1. 武昌工学院,湖南农业大学理学院,湖南农业大学分析测试中心,湖南农业大学,湖南农业大学理学院,湖南农业大学理学院
  • 收稿日期:2015-09-08 修回日期:2015-10-26 接受日期:2015-11-04 出版日期:2016-03-29 发布日期:2016-03-29
  • 通讯作者: 熊海蓉
  • 基金资助:
    农业部公益性行业(农业)科研专项“主要粮食作物一次性施肥技术研究与示范”(201303103) ;湖南省科技厅计划项目“肥料控释包衣剂创制及控释性能研究”(2010FJ6022)。

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

摘要: 为了探明早稻种子包衣肥的缓释性能,对用其制备的包肥种子中养分N、P、K的初期释放率、微分释放率和累积释放率进行了测定。研究结果显示:包衣肥中养分的初期释放率<40%,其中N的初期释放率最快,K次之,P释放得最慢;N、P、K的微分释放率显示包衣肥中养分能够均匀释放,能够满足早稻生长前期对养分的需求,提高肥料利用率,表明早稻种衣肥的缓释性能良好。

关键词: 玉米, 玉米, 降水量, 需水量, 干旱

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.