Results 121 to 130 of about 309,187 (353)

Effect of dietary crude protein on ammonia-N emission measured by herd nitrogen mass balance in a freestall dairy barn managed under farm-like conditions

open access: yesAnimal, 2010
The main objective of this experiment was to monitor the impact of barn side and dietary crude protein (CP) on production performance, manure production and composition, and ammonia nitrogen (N) emission from a lactating dairy herd housed in a free-stall
M.J. Aguerre   +3 more
doaj  

Digestate from small‐scale biogas plants in central Vietnam produced under mesophilic conditions: friend or foe for local farmers?

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study evaluates the suitability of digestate from small mesophilic biogas plants in central Vietnam for agricultural application. Digestate samples were collected from 85 farms and analyzed for microbial contamination and elemental composition.
Hynek Roubík   +7 more
wiley   +1 more source

Utilization of nitrogen in legume-based mobile green manures stored as compost or silage [PDF]

open access: yes, 2013
The utilization of nitrogen (N) in green manure leys can be improved by harvesting, storage and spreading of the plant material as manure in other crops. By green manure storage as silage, storage losses of N are lower than by composting.
Kristensen, E.   +3 more
core  

Laboratory and greenhouse assessment of plant availability of organic N in animal manure [PDF]

open access: yes, 2009
Laboratory data (thermal fractionation, pepsin extraction, C:No ratio) of dung and manure were mutually compared and contrasted with plant-availability of organic N (No) as found in a greenhouse experiment according to the double-pot technique. Two types
Antil, R.S.   +2 more
core   +2 more sources

Manure pit injuries: Rare, deadly, and preventable

open access: yesJournal of Emergencies, Trauma and Shock, 2012
A male worker entered an underground manure pit and lost consciousness. His coworker tried to rescue him and also lost consciousness in the pit. Emergency service arrived in minutes and removed both of them from the pit.
Daniel M Hallam, Junlin Liao, Kent Choi
doaj   +1 more source

A novel decision support system for designing and assessing phytoremediation‐to‐biofuel value chains

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The design of biofuel value chains is a complex process due to the large number of stakeholders involved, seasonality in feedstock availability, security of supply, logistics costs, efficiency considerations, and its multi‐node nature. Decisions on designing phytoremediation‐to‐biofuel value chains are even more complicated, due to the ...
Athanasios Rentizelas   +7 more
wiley   +1 more source

Composting poultry manure by fly larvae (Musca domestica) eliminates Campylobacter jejuni from the manure [PDF]

open access: yes, 2013
Introduction The common house fly, Musca domestica (Md) is an important carrier of zoonotic agents, and Campylobacter jejuni is one that may be transmitted between animals and humans by flies.
Hald, Birthe, Nordentoft, Steen
core  

Global Opportunities to Increase Agricultural Independence Through Phosphorus Recycling [PDF]

open access: yes, 2019
Food production hinges largely upon access to phosphorus (P) fertilizer. Most fertilizer P used in the global agricultural system comes from mining of nonrenewable phosphate rock deposits located within few countries.
Beusen, A. H.W.   +9 more
core   +2 more sources

Phosphorus Fractions in Soil with Organic and Mineral Fertilization in Integrated Crop-Livestock System

open access: yesRevista Brasileira de Ciência do Solo, 2019
Use of organic fertilizers in integrated crop-livestock (iCL) systems may affect soil phosphorus fractions. This study aimed to determine phosphorus fractions in the soil under the iCL system after six years of application of organic or mineral ...
Amanda Zolet Rigo   +6 more
doaj   +1 more source

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