Cattle manure solarization with transparent plastic to pathogens control
Journal Title: Journal of Research in Biology - Year 2011, Vol 1, Issue 7
Abstract
The objective of this work was to evaluate the effect of plastic cover without albedo for solarizing cattle manure in order to eliminate pathogens and to obtain a safe organic fertilizer. The treatments consisted of piles of manure with single and double cover and a control without cover. The experimental design was a randomized blocks with factorial arrangement and three replications and separation of means by Tukey test (P=0.05) analyzed with SAS statistical software. During 20 days the temperatures were registered hourly in each pile at depths of 30 and 60 cm. Five microbiological analyzes were realized in order to detect Escherichia coli and Salmonella spp in each treatment. The results showed a greater homogeneity of temperature in the piles with double covered in the vertical plane, registering 62 ºC at 30 cm and 60 ºC at 90 cm of depth; the temperature with single cover was of 61.5 ºC at 30 cm and 58 ºC at 90 cm of depth; the control showed temperature of 58 ºC at 30 cm and 47 °C at 90 cm. The microbiological results before the solarization showed the presence of Escherichia coli and Salmonella spp., but after solarization process these pathogens were detected only in the control, with a minimum effective time of solarization of 21 days. The solarization of cattle manure in piles with single and double cover is an alternative to produce an organic and innocuous compost to use it in agriculture.
Authors and Affiliations
Vázquez-Vázquez C, Gallegos-Robles MA, Fortis-Hernández M, Salazar-Sosa E, López-Martínez JD, Trejo-Escareño HI, García-Hernández JL
Keywords
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