Results 91 to 100 of about 35,054 (338)

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Can Ammonium Nitrate Be a Strategic Tool by Replacing Urea as a Nitrogen Supplementation Source to Beef Cattle in Intensified Grazing Systems?

open access: yesFermentation
For cattle raised on tropical grass pastures, it is essential to explore strategies that circumvent climatic seasonality that affect forage availability and quality. We hypothesize that the intensification of grazing systems, with rotational and deferred
Willian Rufino Andrade   +9 more
doaj   +1 more source

Existing Accessible Modeling Tools Offer Limited Support to Evaluation of Impact Investment in Rangeland Ecosystem Services

open access: yesFrontiers in Sustainable Food Systems, 2019
Privately owned rangelands in the western US support many ecosystem services and are threatened by financial incentives favoring conversion to housing development and more intensive forms of agriculture.
Beatrice L. Gordon   +6 more
doaj   +1 more source

ECONOMIC ANALYSIS OF CONTROLLING LEAFY SPURGE WITH SHEEP [PDF]

open access: yes
Leafy spurge (Euphorbia esula L.), a widely established exotic, noxious, perennial weed, is a major threat to rangeland and wildland in the Upper Great Plains. Chemical, biological, and cultural control methods have limitations in their applicability and
Bangsund, Dean A.   +3 more
core   +1 more source

Freeze‐dried Lactobacillus spp. improved average daily liveweight gain and reduced methane intensity in growing lambs

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Direct fed microbials (DFM) are natural and safe enteric methane mitigants for ruminant livestock systems. While previous studies have demonstrated the effect of Lactobacillus spp. on methane mitigation, challenges remain in effectively delivering DFM in extensive grazing systems. The objective of this experiment was to evaluate the
Sreemol Suthan Nair   +7 more
wiley   +1 more source

Vegetation composition and forage mass in grassland with a double structure under two winter grazing regimes

open access: yesCiência Rural, 2018
: Remnant areas of Pampas grassland have a distinct double structure. Efficiency of livestock farming on these grasslands depends on practices that are synchronized with natural variation.
André Alfredo Coelho   +4 more
doaj   +1 more source

Organic grassland: the foundation stone of organic livestock farming [PDF]

open access: yes, 2001
In organic farming, the components of the whole farm system interact closely and grassland plays the central role in this intricate web, including the arable cropping phase.
Younie, D.
core  

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

open access: yesOikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis   +5 more
wiley   +1 more source

A review of high nature value farming systems in Europe: Biodiversity, ecosystem services, drivers, innovations and future prospects

open access: yesPeople and Nature, EarlyView.
Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela   +4 more
wiley   +1 more source

Resonances in 28Si+28Si. II

open access: yes, 2012
Resonances observed in the 28Si+28Si collision are studied by the molecular model. In the preceding paper, it is clarified that at high spins in 28Si+28Si (oblate-oblate system), the stable dinuclear configuration of the system is equator-equator ...
Abe, Yasuhisa, Uegaki, Eiji
core   +1 more source

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