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工业木质素包膜缓释尿素释放规律的研究(英文)
Authors
崔智多
张小勇
莫海涛
Publication date
1 January 2014
Publisher
Abstract
为了探明工业木质素包膜缓释肥料的养分释放规律,以及温度、pH和后熟期对于包膜尿素养分释放的影响,进行了一系列的试验。实验结果表明:包膜尿素养分释放曲线呈“S”型,28 d养分释放率达到73.77%,养分微分溶出率为1.83%,理论释放时间为50.25 d。当温度对于养分的释放影响是十分显著的。当培养温度由25℃提高到40℃时,养分的初期溶出率由8.03%提升到16.24%,微分溶出率由1.83%变为1.88%,理论养分释放期由51.25 d缩短至45.55 d。H+和OH-的存在均会促进养分的释放。当室温放置时间为30 d内时,肥料的缓释性能是最佳的
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Last time updated on 09/11/2016