Results 11 to 20 of about 369,563 (317)

Influence of farmers’ socio-economic characteristics on nutrient flow and implications for system sustainability in smallholdings: a review

open access: yesFrontiers in Soil Science, 2023
The rise in global human population, coupled with the effects of climate change, has increased the demand for arable land. Soil fertility has been the most affected, among other things.
Lydia Mhoro   +7 more
doaj   +1 more source

Effects of deep-bedded finishing system on market pig performance, composition and pork quality

open access: yesAnimal, 2008
The purpose of this study was to compare effects of finishing environment on growth performance, pork quality and lipid composition of pork. Environments compared were standard confinement (CON) and deep-bedded semi-outdoor systems.
B.S. Patton   +5 more
doaj   +1 more source

Bioconversion of Digestate, Pig Manure and Vegetal Residue-Based Waste Operated by Black Soldier Fly Larvae, Hermetia illucens L. (Diptera: Stratiomyidae)

open access: yesAnimals, 2021
Insects can play an important role to upgrade waste streams into high-grade proteins and fats as food and feed ingredients or non-food products. The aim of this research was to assess the feasibility to use waste streams with a low value for direct ...
Teun Veldkamp   +4 more
doaj   +1 more source

Strategies to reduce nutrient pollution from manure management in China [PDF]

open access: yes, 2020
As the demand for livestock products continues to increase in China, so too does the challenge of managing increasing quantities of manure. Urgent action is needed to control point source (housing, storage and processing) and diffuse (field application ...
Bai, Zhaohai   +7 more
core   +2 more sources

Impact of Tillage and Fertilization on CO2 Emission from Soil under Maize Cultivation

open access: yesAgriculture, 2022
Agriculture is in a constant state of change. Its new practices and technologies represent impacts that are difficult to predict. The transition from animal traction to tractors and the substitution of manure for synthetic fertilizers are changes that ...
Liliana Salinas-Alcántara   +6 more
doaj   +1 more source

Precision Injection of Dairy Sludge on Crop Yield and N and P Uptake in Juvenile and Mature No-Till Silage Corn

open access: yesAgronomy, 2021
Starter mineral fertilizer is used by famers to provide phosphorus (P) and nitrogen (N) to emerging corn (Zea mays) plants. Recent studies have shown that dairy slurry can replace mineral fertilizer provided it is precisely positioned close to the corn ...
Derek E. Hunt, Shabtai Bittman
doaj   +1 more source

Estudo qualiquantitativo do biogás produzido por substratos em biodigestores tipo batelada Qualiquantitatve study of biogas produced by substrates in batch biodigestors

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2010
A presente pesquisa foi desenvolvida no Departamento de Engenharia Rural da FCAV/UNESP, SP, Brasil, com o objetivo de se estudar, qualiquantitativamente, o biogás produzido por 5 substratos que, após utilizados na digestão anaeróbia, foram caracterizados
João A. Galbiatti   +4 more
doaj   +1 more source

Combined Acidification and Solar Drying of Pig Slurries for Nutrient Recovery and Controlled Atmospheric Emissions

open access: yesAgronomy, 2021
The solar drying of pig slurries was tested in a pilot-scale greenhouse (10 m2 footprint), operated with forced ventilation under low and high solar irradiation in Mediterranean conditions.
Francesc X. Prenafeta-Boldú   +5 more
doaj   +1 more source

Methods for Solving Environmental Problems in Livestock and Poultry Farming

open access: yesСельскохозяйственные машины и технологии, 2019
In the Northwestern Federal District, the main agricultural source of environmental pollution is the disposal of organic waste (manure and litter), which accounts for a risk of 85 percent. The problem of ensuring environmental safety requires appropriate
A. Yu. Bryukhanov   +3 more
doaj   +1 more source

Economic aspects of manure management and practices for sustainable agriculture in Turkey [PDF]

open access: yes, 2019
Turkish livestock sector plays very important role in the Turkish GDP and the use of manure affects the environment but the farming sector want the farmers to employ the use of more integrated manure practice.
Buysse, Jeroen   +3 more
core   +1 more source

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