Resultados de búsqueda - "pressure"

Effect of livestock grazing on physical properties of a cracking and self-mulching Vertisol por Taddese, G., Mohamed Saleem, M.A., Ayaleneh, W.

“…The result showed that heavy grazing pressure removed grass cover, which consequently enhanced soil cracking. …”
Enlace del recurso

Wetlands, agriculture and poverty reduction por McCartney, Matthew P., Rebelo, Lisa-Maria, Senaratna Sellamuttu, Sonali, de Silva, Sanjiv

“…In many places, growing population, in conjunction with efforts to increase food security, is escalating pressure to expand agriculture within wetlands. The environmental impact of wetland agriculture can have profound social and economic repercussions for people dependent on ecosystem services other than those provided directly by agriculture. …”
Enlace del recurso

An assessment of crop water productivity in the Indus and Ganges River Basins: current status and scope for improvement por Xueliang Cai, Sharma, Bharat R., Matin, Mir Abdul, Sharma, D., Gunasinghe, Sarath

“…The Indus and Ganges River Basin, being the most populous in the world, is under extreme pressure to sustain food security. Production resources including water are being exploited to various levels from underdevelopment to heavy overexploitation. …”
Enlace del recurso

Soil resource management in mixed crop-livestock systems of East and Central African highlands: Research agenda and approaches por Haque, I.

“…The first part deals with the maitenance of soil productivity under population pressure, and the second part covers research themes and approaches for maintaining soil productivity in crop-livestock systems. …”
Enlace del recurso

Water, food and livelihoods in river basins por Cook, Simon E., Fisher, Myles J., Andersson, Meike S., Rubiano Mejía, Jorge Eliécer, Giordano, Mark

“…The response of both agricultural and non-agricultural systems to increased pressure will affect livelihoods. Development will be constrained in closed basins if increased demand for irrigation deprives other users or if existing agricultural use constrains non-agricultural activities and in open basins if agriculture cannot feed an expanding or changing population or if the river system loses capacity due to degradation or over-exploitation.…”
Enlace del recurso

Multiple uses of tropical forage legumes for sustainable farming in the moist savannas of Africa por Muhr, L., Tarawali, Shirley A., Peters, Michael, Merkel, U., Schultze-Kraft, Rainer, Berner, D.

“…Ensuring that farming in the moist savannas of Africa is maintained, despite increasing population pressure and agricultural demands, necessitates the sustainable integration of crop and livestock enterprises; a role that forage legumes can fulfill. …”
Enlace del recurso

Southern African agriculture and climate change: a comprehensive analysis por Hachigonta, Sepo, Nelson, Gerald C., Thomas, Timothy S., Sibanda, Lindiwe Majele

“…Both will put increased pressure on the natural resources needed to produce food, and climate change makes the challenges greater. …”
Enlace del recurso

Integration of villages into WUAs-the rising challenge for local water management in Uzbekistan por Mukhamedova, Nozilakhon, Wegerich, Kai

“…This challenge will increase with increasing population pressure and finite resources.…”
Enlace del recurso

Community seed banks: farmers' platform for crop conservation and improvement por Tjikana, Thabo T., Malueke, N., Mokoena, M., Vernooy, Ronnie, Sthapit, B.R.

“…In South Africa, as elsewhere, the community systems that have maintained agrobiodiversity are increasingly coming under pressure from factors such as drought, crop failure and difficult storage conditions. …”
Enlace del recurso

Comparison of greenhouse and field resistance of bean varieties to Empoasca kraemeri (Homoptera Cicadellidae) por Eskafi, F.M., Schoonhoven, Aart van

“…There was a highly significant positive correlation between the no. of nymphs present on the plant and feeding damage (expressed as quality) under low, but not high infestation pressure under greenhouse but not field conditions. …”
Enlace del recurso

Bananas and Plantains (Musa spp.) por Brown, A., Tumuhimbise, Robooni, Amah, D., Uwimana, Brigitte, Nyine, M., Mduma, H., Talengera, D., Karamura, D., Kuriba, J., Swennen, Rony L.

“…Bananas face considerable pressure from multiple biotic and abiotic stresses, but its genetic improvement is impeded by constraints on seed set due to multiple physiological and reproductive issues. …”
Enlace del recurso

Taking the Bitter with the Sweet: Sugarcane's Return as a Driver of Tropical Deforestation por Obidzinski, K., Kusters, K., Gnych, S.

“…There is a general consensus in the scientific community that since the 1950s, the frontier expansion of sugarcane has stabilized and direct pressure on tropical forests from sugarcane expansion has diminished. …”
Enlace del recurso

Management aspects of water and land resources in the Reventazon river basin - Costa Rica por Mojica, I.H.

Enlace del recurso

La tostación continua del café en cama fluida por Rolz, C., Menchú, J.F., Sandoval, J., Simón, P.

Enlace del recurso

Energieffektivisering av dricksvattendistribution : dataanalys och simulering av pumpdrift vid Görvälns vattenverk por Thorstensson, Anton

“…The analysis is done using a dense dataset of measurement from pressure, flow and level sensors in the system. First, the pumps have been analyzed individually as far as possible. …”

Energieffektivisering av Saint-Gobain AB Sweden Gyprocs torksystem : energy efficiency of Saint-Gobain AB Sweden Gyprocs drying system por von Bergen, Elsa, Christiansen, Linus, Eriksson, Jonathan, Israelsson, Karin, Laurell, Algot, Nedstrand, Emma, Pettersson, Anton, Werre, Albin

“…In order to avoid high pressure drops in the heat exchangers an additional fan needs to be implemented. …”

Fungicide resistance against fluopyram in Alternaria solani por Ekdahl, Felicia

“…Mutations that confer a loss of sensitivity to the fungicide (i.e., fungicide resistance) will be selected for in fungal populations where there is a significant selection pressure, through for example, the repeated use of one class of fungicides. …”

Dubbskador på Alvestakubb por Sveningsson, Linus

“…Adjustments of the cylinder pressure of the rollers, increased competence among harvester operators, development of new roller types and improved information systems are examples of measures to be taken to deal with damages on Alvestakubb.…”

Mapping Uganda's coffee quality por Asten, Piet J.A. van, Mukasa, D., Jassogne, Laurence T.P., Nakendo, S., Kananura, E.

“…To allow farmers, farmer groups, traders and processors to benefit from the increasing demand for coffee quality and distinct flavour profiles, the research team of IITA and NaCORI revisited the farms that were earlier subject to an on-farm survey that quantified yield, soil fertility, pest and disease pressure, and crop management practices. With help of the private and public secror (a.o. …”
Enlace del recurso

Övervakningsmetoder och jämförelse av förberedelsetid vid allmän anestesi av föl och unghästar på ett svenskt hästdjursjukhus : en retrospektiv studie por Gunnarsson, Caroline, Gylling, Jessica