PVA包膜缓释肥料在早稻上施用效果

来源 :沈阳农业大学学报 | 被引量 : 0次 | 上传用户：a15813225802

【摘要】

：

对自行研制的3种包膜缓释肥料(PG、PGg、PGf)的肥效进行旱稻盆栽试验.试验结果表明:所研制的包膜肥料具有较好的养分缓释效果,能使土壤中长时间保持较高的养分含量,包膜肥料

【作者】

：

邹洪涛虞娜张玉龙黄毅

【机构】

：

沈阳农业大学

【出处】

：

沈阳农业大学学报

【发表日期】

：

2004年期

【关键词】

：

聚乙烯醇(PVA) 缓释肥料旱稻氮素利用率

【基金项目】

：

辽宁省教育厅科研项目;

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对自行研制的3种包膜缓释肥料(PG、PGg、PGf)的肥效进行旱稻盆栽试验.试验结果表明:所研制的包膜肥料具有较好的养分缓释效果,能使土壤中长时间保持较高的养分含量,包膜肥料缓释效果PGg型优于PG型和PGf型.相同试验条件下,PGg处理株高和生物量比对照处理(CK)分别增加了15.7%和12%,氮素利用率比CK提高了7.5%,减少了氮素损失.

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PVA包膜缓释肥料在早稻上施用效果

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