Analyzing key factors in yard trimmings composting

Article Abstract:

Researchers in Michigan conducted studies to determine the key factors affecting the composting efficiency of yard trimmings. The results showed that windrow turning frequency affected compost bulk density but not the time required to reach compost stability. In addition, leaf to grass ratios of 4-to-3 did not composting, except that higher levels of grass mixtures had higher soluble salt and nitrate levels. It was also discovered that composting was more efficient in piled residuals than those stored in windrows.

Leaves

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The fate of lawn care pesticides during composting

Article Abstract:

The lawn care pesticides diazinon, dichlorophenoxyacetic acid (2,4-D) and pendimethalin undergo different fates during composting in a laboratory scale compost system. More 2,4-D is biodegraded to carbon dioxide than pendimethalin or diazinon. Most of the water soluble products are formed from the breakdown of diazinon rather than from the other two pesticides. The carbon from the pesticides is either unextractable from the final compost or linked to humic materials.

Observations, Biodegradation, Pesticides, Biomineralization

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Composting animal manure with municipal yard trimmings

Article Abstract:

The Iowa State University of Science and Technology's Leopold Center for Sustainable Agriculture undertook a two-year demonstration project designed to develop a composting program for manure and yard trimmings. The project, undertaken at a site provided by the city of Clarion, was also aimed at boosting the composting efforts of farmers and rural communities, thus enhancing the local economy as well.

Management, Manures, Iowa State University of Science and Technology

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