Evaluation of tapioca starch in slow release fertilizer composition for rubber seedlings

Samson, Laura (2019) Evaluation of tapioca starch in slow release fertilizer composition for rubber seedlings. [Project Paper] (Submitted)

Text lp FK 2019 57.pdf Download (2MB)

Abstract

Tapioca peels is the outer layer of the tapioca roots or the skin of the tapioca roots. Starch can be extracted from tapioca peels. Tapioca was mostly to be processed into flour in flour mill region is where tapioca by-products were found. The project invention is to prove the ability of tapioca starch to reduce the utilization of NPK fertilizer amount in each polybag by controlling the thickness of coating diameter. In this project, the coating methods were applied are manual coating, sprayed with cold water, dough coating, blended using blender and mixed with mixer to produce Starch-NPK fertilizer. Then, the degradation of Starch-NPK was tested in soil. After that, the effect of Starch-NPK in rubber seedlings growth is identify. The successful coating methods are manual coating, sprayed with cold water and mixed using mixer. The degradation rate of Starch-NPK for cold water is lowest compare to degradation rate of Starch-NPK for manual coating and using mixer.

Item Type:	Project Paper
Faculty:	Faculty of Engineering
Depositing User:	Ms Siti Mariam Giman
Date Deposited:	17 Nov 2022 01:09
Last Modified:	17 Nov 2022 01:09
URI:	http://psaspb.upm.edu.my/id/eprint/527

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