Measuring ammonia emissions from land applied manure: an intercomparison of commonly used samplers and techniques

Posted in: Environment by admin on January 1, 2005 | No Comments

A lysimeter experiment to investigate the leaching of veterinary antibiotics through a clay soil and comparison with field data

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Composting Hog Manure – Why Isn’t Everyone Doing It?

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Composting is a manure management option to consider if there isn’t enough land for manure application. Increased cash flows can be obtained from compost sales only if patience and hard work are present. A composting option should be evaluated in the context of the entire manure management system on the farm. For liquid manure systems, composting may require separation of liquids and solids, which will add an extra step and additional cost. Composting can easily be done with manure from shallow or deep-bedded systems. Composting has also been done using liquid manure directly by blending with straw, corn stover or wood waste. This may be a viable option on farms that have manure with higher solids content. If composting is to be done, there are 2 options. If siting a new operation, it makes sense to consider a shallow litter system, followed by composting the manure. For existing operations, consider the overall manure management and reduce the water content of the manure. Composting of the manure following separation is a good option, but there is the idea of a system that does not require separation.

GAS AND ODOR EMISSIONS FROM SWINE BUILDING MATERIALS

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A methodology for the measurement of distributed agricultural sources of ammonia outdoors—Part 2: field validation and farm measurements

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Nitrate leaching under spring barley is influenced by the presence of a ryegrass catch crop: Results from a lysimeter experiment

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Survey of Water-Extractable Phosphorus in Livestock Manures

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Poly(vinyl alcohol)/Compost Composites for Biofiltration of Swine Waste Volatiles

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Livestock Operations & Groundwater Quality

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Most people living in rural areas of Manitoba rely on groundwater as their primary source of water. To protect and preserve the quality of belowground water sources, it is important that agricultural producers operate in a responsible manner as stewards not only of the land but also of the water under the land.

Livestock operations are a potential source of groundwater contamination.
– The risk of impacts on potable groundwater supplies can be minimized by:
– locating manure structures, outdoor pens and field manure storage in areas underlain by thick clay
materials
– minimizing the duration of field manure storage before spreading
– applying manure at proper agronomic rates as a fertilizer with due consideration for crop
requirements, soil texture and sensitivity of underlying aquifers.

Heating and Ventilation in Swine Facilities

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