ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS
(2011). ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS. EKB Journal Management System, 22(Issue 2-A), 65-80. doi: 10.21608/absb.2011.7018
. "ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS". EKB Journal Management System, 22, Issue 2-A, 2011, 65-80. doi: 10.21608/absb.2011.7018
(2011). 'ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS', EKB Journal Management System, 22(Issue 2-A), pp. 65-80. doi: 10.21608/absb.2011.7018
ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS. EKB Journal Management System, 2011; 22(Issue 2-A): 65-80. doi: 10.21608/absb.2011.7018

ENCAPSULATION OF NPK MINERAL FERTILIZER GRANULES BY DIFFERENT TYPES OF ALKYD RESINS

Al-Azhar Bulletin of Science
Article 7, Volume 22, Issue 2-A, December 2011, Page 65-80  XML PDF (1.17 MB)
Document Type: Original Article
DOI: 10.21608/absb.2011.7018
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Abstract
Three different kinds of alkyd resins were used for encapsulation a commercial granules fertilizers NPK (N 12%, P2O5 8% and K2O 18%) with particle diameter ranges from 3 to 5 mm. The total concentration of the alkyd coated film was less than 10 % of the total weight of the fertilizer composition. The release rate was measured by conductivity test. The area of the coating film was determined by mathematical calculations. Controlled release parameters including membrane thickness, granule radius and type of resin were taken into consideration.
Keywords
Controlled-release fertilizer; Alkyd resins; Encapsulation NPK
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