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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (20): 217-221.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

种子包衣肥理化特性研究

熊海蓉   

  • 收稿日期:2010-05-13 修回日期:2010-06-21 出版日期:2010-10-20 发布日期:2010-10-20
  • 基金资助:

    国家农业科技成果转化基金资助项目;湖南省科技厅重点项目;湖南省教育厅重点项目

Study on Physical and Chemical Characteristics of Seed-Coating Fertilizer

  • Received:2010-05-13 Revised:2010-06-21 Online:2010-10-20 Published:2010-10-20

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摘要：

通过对早、晚型种子包衣肥的pH值、包衣均匀度、包衣脱落率、初期溶出率、微分溶出率、养分累积释放曲线的测定，以及对衣膜结构、包衣水稻种子与未包衣的对照种子表面结构扫描电镜观察，研究了种子包衣肥的理化特性。结果表明：早、晚稻型种子包衣肥的pH值为5～6、包衣均匀度＞96%、包衣脱落率＜6.5%、养分初期溶出率＜14%、养分微分溶出率＜2%、养分累积释放曲线呈“S”型，说明种子包衣肥理化性能稳定，包衣效果与养分缓释效果良好。

关键词: 高原玉米, 高原玉米, 育种现状, 问题, 对策

Abstract:

Physical and chemical characteristics of seed-coating fertilizers were studied by means of determining the pH values, coating uniformity rates, coating off rates, nutrient initial-release ratios, nutrient micro-release ratios, nutrient accumulation-release curves of early and late rice seed-coating fertilizers, and observing the membrane structures of seed-coating fertilizers and the surface structures of the coated and uncoated rice seeds by SEM. Results showed that the pH values of early and late seed-coating fertilizers were 5～6, coating uniformity rates＞96%, coating off rates＜6.5%, nutrient initial-release ratios＜14%, nutrient micro-release ratios＜2%, and the nutrient accumulation-release curves were S-shape.These results indicated the physical and chemical properties of seed-coating fertilizers were stable, and the effects of coating and nutrient slow-release were good.

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