Results 31 to 40 of about 3,450,809 (399)

Developing the EU Farm Accountancy Data Network to derive indicators around the sustainable use of nitrogen and phosphorus at farm level. [PDF]

open access: yes, 2015
peer-reviewedThis study uses a national farm survey which is part of the European Union (EU) Farm Accountancy Data Network (FADN) to develop environmental sustainability indicators in the use of nitrogen (N) and phosphorus (P) across a range of farm ...
Buckley, Cathal   +3 more
core   +1 more source

A mass-balance approach to estimate in-stream processes in a large river [PDF]

open access: yes, 2008
A mass-balance approach was used to estimate in-stream processes related to inorganic nitrogen species (NH4 C, NO2 and NO3 ) in a large river characterized by highly variable hydrological conditions, the Garonne River (south-west France).
American Public Health Association (APHA)   +9 more
core   +3 more sources

Effects of phytase on growth and slaughter performance, digestibility and nitrogen and mineral balance in heavy pigs

open access: yesItalian Journal of Animal Science, 2012
The study aimed at evaluating the effects of phytase (Ronozyme® NP) to the diet of fattening pigs. In comparison with a control diet (C) which included 0.5% calcium salt (CaHPO4), two diets without CaHPO4 were tested: 150Phy and 300Phy, which contained ...
Gianluca Galassi   +5 more
doaj   +1 more source

Nitrogen Balance in Radiation Chimeras.

open access: yesExperimental Biology and Medicine, 1964
SummaryPositive nitrogen balance was observed in mice given 900 r total-body X-irradiation and then treated by injection of living bone marrow cells. The average level was about twice that of normal controls for 90 days after irradiation and bone marrow treatment. Mice given isologous cells showed a normal rate of gain in body weight.
Mc arthur, W H   +2 more
openaire   +3 more sources

Anthropogenic nitrogen autotrophy and heterotrophy of the world's watersheds: Past, present, and future trends [PDF]

open access: yes, 2010
Anthropogenic nitrogen autotrophy of a territory is defined as the nitrogen flux associated with local production of harvested crops and grass consumed by livestock grazing (in kg N/km(2)/yr).
Beusen, A.   +3 more
core   +3 more sources

A Comparative Nitrogen Balance and Productivity Analysis of Legume and Non-legume Supported Cropping Systems: The Potential Role of Biological Nitrogen Fixation

open access: yesFrontiers in Plant Science, 2016
The potential of biological nitrogen fixation (BNF) to provide sufficient N for production has encouraged re-appraisal of cropping systems that deploy legumes.
P. Iannetta   +15 more
semanticscholar   +1 more source

Nitrogen Efficiency in Agriculture in Europe and India

open access: yesThe Scientific World Journal, 2001
Nitrogen balance sheets are useful tools for studying the quantitative aspects of nutrients. Nitrogen balance sheets have been prepared for the animal production system, crop production system, and for the agricultural sector as a whole for all 15 member
Klaas W. Van der Hoek
doaj   +1 more source

Nitrogen balance and ruminal assessment in male and female sheeps fed rations containing castor cake under different treatments

open access: yesSemina: Ciências Agrárias, 2014
Was evaluated the influence of alternative methods of detoxification of castor cake on nitrogen balance and ruminal evaluation in sheep fed isocaloric and isonitrogenous experimental diets.
Rafael Nogueira Furtado   +5 more
doaj   +1 more source

Contrasted Reactivity to Oxygen Tensions in Frankia sp. Strain CcI3 throughout Nitrogen Fixation and Assimilation [PDF]

open access: yes, 2014
Reconciling the irreconcilable is a primary struggle in aerobic nitrogen-fixing bacteria. Although nitrogenase is oxygen and reactive oxygen species-labile, oxygen tension is required to sustain respiration.
Beauchemin, Nicholas   +6 more
core   +4 more sources

Nitrogen Balance and Protein Requirements for Critically Ill Older Patients

open access: yesNutrients, 2016
Critically ill older patients with sarcopenia experience greater morbidity and mortality than younger patients. It is anticipated that unabated protein catabolism would be detrimental for the critically ill older patient.
R. Dickerson
semanticscholar   +1 more source

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