نتایج جستجو برای: agricultural and livestock nurturing

تعداد نتایج: 16846818  

2002
Habtemariam Kassa Robert W. Blake Charles F. Nicholson

Introduction Policy makers and extension planners often assume smallholder mixed farming systems are incapable of evolving fast enough to meet growing food demands and that livestock are relatively unimportant to household food production or welfare (FDRE, 1994), except for intensive units. The resulting policy promotes substitution of either intensive cropping or livestock production in place ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Philip K Thornton Mario Herrero

We estimate the potential reductions in methane and carbon dioxide emissions from several livestock and pasture management options in the mixed and rangeland-based production systems in the tropics. The impacts of adoption of improved pastures, intensifying ruminant diets, changes in land-use practices, and changing breeds of large ruminants on the production of methane and carbon dioxide are c...

2011
Matthew E. Gilbert Michele Holbrook N. Michele Holbrook

Diversification of agricultural systems is a standard suggestion for increasing the resilience of rain-fed subsistence farming to drought. However, grain crops share many physiological characteristics, potentially forming a plant functional type (PFT), a term ecologists apply to groups of species that respond in functionally similar ways to environmental variation. Here we test whether grain cr...

2015
Alcade C. Segnon Enoch G. Achigan-Dako Marc A. Rosen

Building on farmer’s agroecological knowledge to design environmental-friendly agricultural systems is crucial given the environmental impact of industrial agriculture. We investigated the drivers of farmers’ knowledge of agrobiodiversity management and analyzed how farmers’ knowledge and their current farming contexts may guide future farming systems in sub-humid (Bassila) and semi-arid (Bouko...

2015
Julie Wolf Tristram O. West Yannick Le Page Xuesong Zhang Yannick Le Marc L. Imhoff

Quantification of biogenic carbon fluxes from agricultural lands is needed to generate comprehensive bottom-up estimates of net carbon exchange for global and regional carbon monitoring. We estimated global agricultural carbon fluxes associated with annual crop net primary production (NPP), harvested biomass, and consumption of biomass by humans and livestock. These estimates were combined for ...

Journal: :Postgraduate medical journal 1973
I M Smith

Although there exists in the U.K. a high degree of control of industrial and agricultural anthrax in man and anthrax in animals originating either from animal products or from materials contaminated by contact with them, total control of anthrax in this country seems unlikely to follow until the disease is eliminated from livestock in the enzootic areas abroad. This view rests on the probabilit...

2013
Rajan Ghimire Jay B. Norton Urszula Norton John P. Ritten Peter D. Stahl James M. Krall

In recent decades, there has been growing interest among farming and scientific communities toward integrated crop– range–livestock farming because of evidence of increased crop production, soil health, environmental services and resilience to increased climatic variability. This paper reviews studies on existing cropping systems and integrated crop– range–livestock systems across the USA which...

2010
ANTÓNIO XAVIER MARIA DE BELÉM MARTINS RUI MANUEL DE SOUSA FRAGOSO

-This paper presents several combined agricultural data disaggregation models in order to recover the farms’ land uses, the livestock numbers and main crops’ productions. The proposed approach estimates incomplete information at disaggregated level through entropy, using an information prior, and generating information for a combined calculation use of data in the estimation of other variables....

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