نتایج جستجو برای: food crop
تعداد نتایج: 328828 فیلتر نتایج به سال:
Global food and energy crises, rational land use, environmental conservation are urgent problems in the world that determine existence of human civilisation. The success solving certain requires significant changes innovative decisions various production areas agriculture particular. purpose study is to analytically review data on security, use crop production, innovations identify ways solve t...
> Seed systems are crucial for sustainable food system outcomes: agricultural sustainability, food security and healthy diets. > Production and distribution, innovation and regulation are the key functions of seed systems, which make a difference to sustainable food systems. > Currently used methods to measure the performance of seed systems concentrate narrowly on their contribution to agricul...
Interactions between food demand, biomass energy and forest preservation are driving both food prices and land-use changes. This study presents a new model called Nexus Land-Use which describes these interactions through a representation of agricultural intensification. The model combine biophysics and economics to calculate crop yields, food prices, and resulting pasture and cropland areas wit...
In this letter, we investigate the effects of crop yield and livestock feed efficiency scenarios on greenhouse gas (GHG) emissions from agriculture and land use change in developing countries. We analyze mitigation associated with different productivity pathways using the global partial equilibrium model GLOBIOM. Our results confirm that yield increase could mitigate some agriculture-related em...
Jack Harlan was a polymath. His life-long study of crop evolution combined plant sciences, archaeology, systematics, genetics, and conservation, leaving a legacy of five decades of influential publications that explored all aspects of crop plants – their origins, their dispersal, and their continued and future role in supporting the Earth’s burgeoning populations. To Harlan, agriculture was not...
If the ideal of assured "Food for All" is to be attained, it will be necessary to do a better job of preventing the debilitation or destruction of crop plants by noxious weeds, voracious animals, and devastating plant diseases. For these destructive agents continually tend to nullify the constructive efforts to increase food production. Food production per unit area of land has been increased g...
Stable isotopes are an important tool for studying invertebrate food webs and movement of invertebrates in farmland. However, stable isotope values of farmland invertebrates have been reported for only a few crop types, and rarely for other land uses within farmland. We compared 13C and 15N of invertebrates captured in corn, soybean, hay, and hedgerows in eastern Ontario, Canada. 13C was signif...
Wheat (Triticum aestivum) is one of the most important staple food crops, cultivated worldwide. The increased human population would require a major augment in the food supply in coming decades. Extension of sowing fields has only a little possibility; therefore, an increase the crop productivity has become a crucial necessity to assure the future food security [1,2]. Increased use of fertilize...
Agriculture is now facing the 'perfect storm' of climate change, increasing costs of fertilizer and rising food demands from a larger and wealthier human population. These factors point to a global food deficit unless the efficiency and resilience of crop production is increased. The intensification of agriculture has focused on improving production under optimized conditions, with significant ...
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