Results 11 to 20 of about 537,886 (286)

Circular Economy in Wastewater Management—The Potential of Source-Separating Sanitation in Rural and Peri-Urban Areas of Northern Finland and Sweden

open access: yesFrontiers in Environmental Science, 2022
Current practices in wastewater management lead to inefficient recovery and reuse of nutrients and can result in environmental problems. Source separation systems have been shown to be an efficient way of recovering nutrients and energy from wastewaters,
Suvi Lehtoranta   +6 more
doaj   +1 more source

Nutrient balance and body composition [PDF]

open access: yesReproduction Nutrition Development, 1997
The prevalence of obesity in industrialized countries is increasing in spite of decreased energy and fat intakes. This trend might be mainly a consequence of a decline in energy expenditure. It is suggested here that it might also be accounted for by the increasing proportion of protein in the diet, affecting the hormonal status. The nutrient imbalance
Rolland-Cachera, Mf   +2 more
openaire   +3 more sources

Improvement of soil fertility and rice yield after long-term application of cow manure combined with inorganic fertilizers

open access: yesJournal of Integrative Agriculture, 2023
Fertilization is an effective technique to improve soil fertility and increase crop yield. The long-term effects of different fertilizers on soil considerably vary.
Peng GAO   +10 more
doaj   +1 more source

(N.P.K) fertilizer application levels in Onion Crops and Using the Diagnosis and Recommendation Integrated System – DRIS [PDF]

open access: yesمجلة جامعة كركوك للعلوم الزراعية, 2023
Fertilizations is one the efforts done to increase the production and quality of crops. Nitrogen, phosphorus and potassium fertilizers rate used in the production of Onion are excessive, so the essential elements present in the soil can be imbalanced ...
Dilzar Saeed, Alwand Dizayee
doaj   +1 more source

Nutrient digestibility and balance studies

open access: yesMethods in cattle physiology and behaviour – Recommendations from the SmartCow consortium., 2020
The nutritional value of a feed for cattle depends on its nutrient and energy contents, the extent of rumen fermentation and degradation, and the post-ruminal digestibility. Efficiency of digestion depends on different factors, for example, the apparent digestibility (estimated by subtracting the nutrients contained in faeces from the nutrients ...
Danesh Mesgaran, Sadjan   +7 more
openaire   +3 more sources

Regional differences in nitrogen balance and nitrogen use efficiency in the rice–livestock system of Uruguay

open access: yesFrontiers in Sustainable Food Systems, 2023
The reintegration of crops with livestock systems is proposed as a way of improving the environmental impacts of food production globally, particularly the impact involving nitrogen (N).
Jesús Castillo   +5 more
doaj   +1 more source

Nitrogen and phosphorus balances on Finnish dairy farms [PDF]

open access: yes, 2005
The calculation of whole-farm nutrient balance is an effective and simple method for estimating the potential nutrient loading from dairy farming into the environment.
Nousiainen, Juha, Virtanen, Hanna
core   +2 more sources

Agro-Ecological Impact of Irrigation and Nutrient Management on Spinach (Spinacia oleracea L.) Grown in Semi-Arid Conditions

open access: yesLand, 2023
The environment is affected by most anthropogenic activities; among them, agriculture is one activity with more negative effects, especially when management is inadequate, causing soil degradation or contamination.
María José Delgado-Iniesta   +2 more
doaj   +1 more source

The gastrointestinal tract as a nutrient-balancing organ [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2010
Failure to provision tissues with an appropriate balance of nutrients engenders fitness costs. Maintaining nutrient balance can be achieved by adjusting the selection and consumption of foods, but this may not be possible when the nutritional environment is limiting.
Fiona J, Clissold   +3 more
openaire   +2 more sources

Nitrogen and Potassium Fertilization in a Guava Orchard Evaluated for Five Cycles: Effects on the Plant and on Production

open access: yesRevista Brasileira de Ciência do Solo, 2016
Guava response to fertilization can be monitored through plant tissue analysis. Correct interpretation of these results, based on standard levels, is of great importance for correct nutrient management of the crop. However, standard levels are constantly
Rafael Marangoni Montes   +6 more
doaj   +1 more source

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