Ammonia Emissions from Cattle Manure under Variable Moisture Exchange between the Manure and the Environment

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Abstract

When reducing ammonia emissions from cowsheds, it is recommended to reduce the ventilation intensity, air temperature in the barn, manure moisture by using bedding and manure-contaminated surfaces, and to prevent urine from accumulating in the airways. Using the mass flow method in the wind tunnel, after research on seven types of cattle manure with different moisture contents, it was found that ammonia evaporates up to 3.9 times more intensively from liquid manure than from solid manure. There is a strong correlation between ammonia and water evaporation from manure. Ammonia emission from liquid manure decrease by 2.0–2.3 times, emissions from solid manure decrease by 1.9–2.1 times. Different cowsheds have different opportunities to reduce air pollution and conditions for manure to dry and crusts to form on the surface. The best results will be achieved by applying complex measures to reduce air pollution.

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APA

Bleizgys, R., & Naujokienė, V. (2023). Ammonia Emissions from Cattle Manure under Variable Moisture Exchange between the Manure and the Environment. Agronomy, 13(6). https://doi.org/10.3390/agronomy13061555

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