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Evaluate methods for manufacturing slow-release fertiliser from poultry manure and compare the nutrient release profiles and processing demands of screw extrusion versus pan granulation.

March 14, 2019

Slow release fertiliser production from poultry manure

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Evaluate methods for manufacturing slow-release fertiliser from poultry manure and compare the nutrient release profiles and processing demands of screw extrusion versus pan granulation.
Poultry manure combined with rice husk was dried and milled into a base matrix powder.
The powder was mixed with a starch binder and urea as a nitrogen source before compaction.
Compaction and formulation were performed and tested using two distinct techniques: screw extrusion and pan granulation.
Pelletised slow-release fertiliser produced via screw extrusion retained nutrients for a longer duration than granule fertiliser made with a pan granulator.
Pan granulation demonstrated lower nutrient retention capability but required less processing time and energy input than screw extrusion.

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Implication

Experimental study reveals extruded poultry manure pellets retain nutrients longer than granulated forms, indicating a trade-off between release performance and processing energy.

Cite This Study

Purnomo et al. (2019) studied this question.

synapsesocial.com/papers/6a6fe42dfebe604dd708b6eb https://doi.org/10.3303/cet1756256

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Implication

Experimental study reveals extruded poultry manure pellets retain nutrients longer than granulated forms, indicating a trade-off between release performance and processing energy.

Slow release fertiliser production from poultry manure

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Discussion

Implication

Cite This Study

Slow release fertiliser production from poultry manure

Key Points

Discussion

Implication

Cite This Study

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