Results 21 to 30 of about 2,474,981 (306)

Dissolved organic carbon and nitrogen leaching from Scots pine, Norway spruce and silver birch stands in southern Sweden [PDF]

, 2011
The effects of three common tree species – Scots pine, Norway spruce and silver birch – on leaching of dissolved organic carbon and dissolved nitrogen were studied in an experimental forest with podzolised soils in southern Sweden. We analyzed soil water
Kleja, Dan Berggren, Hansson, Karna, Alavi, Ghasem, Fröberg, Mats   +3 more
core   +2 more sources

Potato growth, nitrogen balance, quality, and productivity response to water-nitrogen regulation in a cold and arid environment [PDF]

Frontiers in Plant Science
Hengjia Zhang, Yuchun Ba, Lian Lei
exaly   +2 more sources

Nitrogen Efficiency in Agriculture in Europe and India

The 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

Challenges and opportunities for improving nitrogen utilization efficiency for more sustainable pork production

Frontiers in Animal Science, 2023
Pork is one of the most consumed animal-derived protein sources around the world, but less than 45% of dietary nitrogen (N) is converted into edible lean meat.
Gerald C. Shurson, Brian J. Kerr
doaj   +1 more source

Intake and digestibility in cattle grazing temperate grass associated with legume and/or energetic supplementation

Czech Journal of Animal Science, 2021
The intercrop between grasses and legumes is an alternative to maintain and increase animal production. The study was conducted to evaluate the effect of grass-legume mixtures with or without supplementations on rumen fermentation, nutrient intake, and ...
Cassiano Albino Lorensetti, Magali Floriano da Silveira, Roberta Farenzena, Eduardo Felipe Colerauz de Oliveira Lazzarotto, Jeferson Menezes Lourenço, Andressa Alaine Michailoff, Lucas Felipe Francisco, Ana Carolini Barbosa Sordi   +7 more
doaj   +1 more source

Nitrogen Balance in Radiation Chimeras.

Experimental 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, Congdon, C C, Kretchmar, A L   +2 more
openaire   +2 more sources

Optimized management strategy increased grain yield, promoted nitrogen balance, and improved water productivity in winter wheat

Frontiers in Plant Science, 2023
The increasing costs of agricultural production and environmental concerns reinforce the need to reduce resource inputs. Improvements in nitrogen (N) use efficiency (NUE) and water productivity (WP) are critical for sustainable agriculture.
Haicheng Xu, Mei Liu, Yuhai Tang, Fei Zhao, Wenchao Cao, Mingrong He, Dianliang Peng, Xinglong Dai   +7 more
doaj   +1 more source

Assessment of protein requirements by nitrogen balance [PDF]

Proceedings of the Nutrition Society, 1969
The earliest estimates of protein requirements, such as those of Smith (1863) and Pavy (1874) who recommended about 125 g per day for the average working man, were based on studies of the diets of individuals or of groups of subjects who were considered to be healthy and leading ...
D S, Miller, P R, Payne
openaire   +4 more sources

Nitrogen balance and outcomes in critically ill patients: A systematic review and meta-analysis

Frontiers in Nutrition, 2022
ObjectiveNitrogen balance (NB) is a commonly used nutrition indicator in clinical practice, while its relation to the interpretation of protein malnutrition and outcomes in critically ill patients remains unclear.
Yi-Bing Zhu, Yan Yao, Yuan Xu, Hui-Bin Huang   +3 more
doaj   +1 more source

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

Semina: 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 , Maria Socorro de Souza Carneiro , Magno José Duarte Cândido , Fernando Henrique Teixeira Gomes , Marcos Cláudio Pinheiro Rogério , Divan Soares da Silva   +5 more
doaj   +1 more source