Utilisation and recycling of organic manure in integrated farming systems

Pittaway P., . Utilisation and recycling of organic manure in integrated farming systems. pp. 37-45. ISSN 0128-9322

Throughout Asia and Australasia the intensification of livestock production has increased the risks of environmental pollution. In an attempt to minimise environmental pollution the regulatory authorities in Queensland now require all large intensive piggeries and feedlots to demonstrate (using mass balance principles) that the manure produced can be sustainably reused on the pasture or cropping land available to the enterprise. However within the context of integrated farming system the focus should be on returning the nutrients in the manure to the land on which the animal feed was produced. In Australia livestock producers are becoming increasingly specialised limiting the feasibility of reusing organic waste on-site in an environmentally sustainable manner. Moreover the local reuse of the unprocessed manure for crop production is limited by the practicalities of transporting and spreading dence highly heterogeneous and biologically active materials. Composting has the advantage of stabilising the organic component of the manure concentrating the nutrients in a friable more readily handled material. Until comparatively recently composting has been used as a waste management tool to minimise odour and pathogen ricks with very little attention given to improving the agronomic value of the product. However as the case studies presented in this paper indicate it is possible to produce a quality assured agronomically valuable compost targeting the alternative fertiliser and potting media/landscape supply markets. Currently only a handful of commercial composters and feedlot managers are implementing quality assurance (QA) protocols in their production system. As the regulations governing the reuse of raw manures increase and as publlic awareness of the value of biologically mature QA composts increases the market share for these composted products will also continue to increase.

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Abstract

Throughout Asia and Australasia the intensification of livestock production has increased the risks of environmental pollution. In an attempt to minimise environmental pollution the regulatory authorities in Queensland now require all large intensive piggeries and feedlots to demonstrate (using mass balance principles) that the manure produced can be sustainably reused on the pasture or cropping land available to the enterprise. However within the context of integrated farming system the focus should be on returning the nutrients in the manure to the land on which the animal feed was produced. In Australia livestock producers are becoming increasingly specialised limiting the feasibility of reusing organic waste on-site in an environmentally sustainable manner. Moreover the local reuse of the unprocessed manure for crop production is limited by the practicalities of transporting and spreading dence highly heterogeneous and biologically active materials. Composting has the advantage of stabilising the organic component of the manure concentrating the nutrients in a friable more readily handled material. Until comparatively recently composting has been used as a waste management tool to minimise odour and pathogen ricks with very little attention given to improving the agronomic value of the product. However as the case studies presented in this paper indicate it is possible to produce a quality assured agronomically valuable compost targeting the alternative fertiliser and potting media/landscape supply markets. Currently only a handful of commercial composters and feedlot managers are implementing quality assurance (QA) protocols in their production system. As the regulations governing the reuse of raw manures increase and as publlic awareness of the value of biologically mature QA composts increases the market share for these composted products will also continue to increase.

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Item Type:	Article
AGROVOC Term:	PLANT NUTRITION
AGROVOC Term:	CYCLING
AGROVOC Term:	NUTRITION PHYSIOLOGY
AGROVOC Term:	NUTRIENTS
AGROVOC Term:	FERTILIZER APPLICATION
AGROVOC Term:	INORGANIC FERTILIZERS
AGROVOC Term:	NITROGEN FERTILIZERS
AGROVOC Term:	ORGANIC FERTILIZERS
AGROVOC Term:	PHOSPHATE FERTILIZERS
AGROVOC Term:	POTASH FERTILIZERS
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:26
URI:	http://webagris.upm.edu.my/id/eprint/21106

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