Results 61 to 70 of about 480,001 (186)
Uncovering Biogas Outcomes: Tales of Hubris, Hope, and Failure From Southern Malawi
Natural Resources Forum, EarlyView.ABSTRACT The purpose of this article is to speak directly to biogas failure. Over the past two decades, immense amounts of money have been spent by African governments, private individuals, and most conspicuously, international aid agencies and donors, on countless biogas projects in every country on the continent.
Marc Kalina +4 more
wiley +1 more source
Mineral balances, including in drinking water, estimated for Merced County dairy herds
California Agriculture, 2007 Dairy producers must increasingly comply with environmental regulations at the federal, state and local levels. A key to many of the regulations is the development of manure management plans to protect air, water and soil quality. Information on complete
A Castillo, J Santos, T Tabone
doaj +2 more sources
AN ECONOMIC ANALYSIS OF THE DAIRY ENVIRONMENTAL COOPERATIVE IN NORTHEAST KANSAS [PDF]
In 1997, the Black Vermillion Dairy Environmental Cooperative (DEC) was started with an EPA 319A grant. Ten Kansas dairies located in the Kansas Black Vermillion Watershed were studied to evaluate the on-farm manure structures cost-shared by the DEC. Net
Kastens, Terry L., Vogt, Michael L.
core
The composition of dirty water on dairy farms in Ireland [PDF]
, 2010 peer-reviewedConsiderable quantities of dirty water, composed of milking parlour wash-water, milk spillages, runoff from cattle yard areas and, possibly, effluent from silage and manure, are produced on dairy farms.
Martinez-Suller, L. +5 more
core +1 more source
Insect Science, EarlyView.Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived airborne semiochemicals. Egg‐borne bacterial symbionts, and Serratia marcescens in particular, produce odorants which attract gravid female flies and elicit oviposition.
Emmanuel Hung +12 more
wiley +1 more source
Assessing Nutrient Removal Kinetics in Flushed Manure Using Chlorella vulgaris Biomass Production
Frontiers in Bioengineering and Biotechnology, 2017 The utilization of dairy wastewater for producing algal biomass is seen as a two-fold opportunity to treat wastewater and produce algae biomass, which can be potentially used for production of biofuels.
Pramod Pandey +3 more
doaj +1 more source
Journal of Applied Entomology, EarlyView.ABSTRACT Swine manure management poses significant environmental challenges, and black soldier fly, Hermetia illucens L. (Diptera: Stratiomyidae) larvae, offer a sustainable alternative by converting manure into insect biomass while reducing waste volume.
Fariz Ardiansyah Gunawan +3 more
wiley +1 more source
Manure waste management: Perceptions and practices of dairy farmers in Punjab, India
Open Veterinary JournalBackground: Manure waste disposal is an essential aspect of dairy farm biosecurity and significantly impacts farm productivity, animal health, public health, and environmental sustainability. Improper manure management can contribute to pathogen spread,
Nilam Wavhal +3 more
doaj +1 more source
Exploring Spatial Patterns in Inefficiency Using a Stationary Gaussian Random Field
Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT This article presents a semiparametric stochastic frontier model that accounts for unobserved spatial heterogeneity in inefficiency by incorporating a stationary Gaussian random field based on geographic coordinates into the inefficiency scaling function. This approach captures spatial patterns in inefficiency at a fine scale.
Ioannis Skevas
wiley +1 more source
Agricultural & Environmental Letters, 2017 Application of livestock manure to farm soils represents a priority nutrient management concern in the Chesapeake Bay watershed. Historically, strong emphasis has been placed on adding manure storage to dairy operations, with the recognition that manure ...
E. W. Duncan +3 more
doaj +1 more source