COATING FERTILIZER GRANULES WITH BIODEGRADABLE MATERIALS FOR CONTROLLED FERTILIZER RELEASE

被引：0

作者：

Lubkowski, Krzysztof ^{[1
]}

机构：

[1] West Pomeranian Univ Technol, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland

来源：

ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2014年 / 13卷 / 10期

关键词：

biodegradable materials; controlled release fertilizers; granulation; SULFUR-COATED UREA; CONTROLLED NUTRIENT RELEASE; NPK COMPOUND FERTILIZER; DIFFUSION RELEASE; WATER-RETENTION; REDUCE NITROGEN; CHITOSAN; GROWTH; MICROCAPSULES; FORMULATIONS;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biodegradable chitosan was used to cover fertilizer granules with an inert, impermeable layer in order to obtain a material with controlled release properties. The process was performed in a laboratory drum granulator. Prepared materials were characterized with available analytical methods (XRD, optical microscopy). The layer thickness of the obtained materials was in the range of 0.047 -0.5425 mm. The degree of nutrients' release (0.64-0.965 within five hours) were determined with standardized method. Exponential, sigmoidal and power equations were used to describe the kinetics of nutrients' release.

引用

页码：2573 / 2581

页数：9

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