نتایج جستجو برای: food crop
تعداد نتایج: 328828 فیلتر نتایج به سال:
Iran, with an average annual precipitation of about 252 mm (413 BCM) and renewable freshwater resources of 130 BCM, has irregular distribution of water resources. With a high population growth rate, agriculture remains the greatest water user in Iran but its production still does not meet the total food demand of the country. Due to unreliable water availability, the competition for water from ...
Rice is one of the key food grains linked to the food security of the growing population of the world. India has largest rice area in the world and stands second in production. The rice crop is important both from the food security and climate change point of view. The present paper highlights rice-growing pattern in India derived using satellite remote sensing and Geographic Information System...
Smallholder participation in agricultural markets in Mozambique has been historically very low. The majority of rural smallholders are subsistenceoriented, devote the majority of their labor and assets to agricultural activities and rely on crop production for over two thirds of their total household income. Household survey results indicate that the poorest 40% of smallholders sell very little...
Maize is widely grown in Africa including in drier areas where alternate crops will often perform better. Although maize will fail in drought years, it produces substantially higher yields than alternates, such as sorghum and millet, in wet years. Although people tend to select which crops to grow based on recent experience with crop harvests and prices, there is a widespread preference for mai...
Taking advantage of multiple new remote sensing data sources, especially from Chinese satellites, the CropWatch system has expanded the scope of its international analyses through the development of new indicators and an upgraded operational methodology. The approach adopts a hierarchical system covering four spatial levels of detail: global, regional, national (thirty-one key countries includi...
This paper demonstrates how crop diversification impacts on two outcomes of climate smart agriculture; increased productivity (legume and cereal crop productivity) and enhanced resilience (household income, food security, and nutrition) in rural Zimbabwe. Using data from over 500 smallholder farmers, we jointly estimate crop diversification and each of the outcome variables within a conditional...
A major challenge of the 21st century is to achieve food supply security under a changing climate and roughly a doubling in food demand by 2050 compared to present, the majority of which needs to be met by the cereals wheat, rice, maize, and barley. Future harvests are expected to be especially threatened through increased frequency and severity of extreme events, such as heat waves and drought...
An approach for estimating human exposure to pesticides via consumption of six important food crops is presented that can be used to extend multimedia models applied in health risk and life cycle impact assessment. We first assessed the variation of model output (pesticide residues per kg applied) as a function of model input variables (substance, crop, and environmental properties) including t...
Consumers’ views of genetically modified foods (GM foods) can influence food producers’ decisions as to whether to market GM foods or whether to use conventional varieties. Through labelling, supported by certification, consumers could differentiate a GM food from a conventional food. A working group of the Codex Committee on Food Labelling identified seven approaches to labelling of GM foods. ...
169 Food Security: Population Controls A. H. Westing Food Security: Green Revolution Drawbacks V. Rull Food Security: Beyond Technology D. W. Bromley Food Security: Crop Species Diversity H. Dempewolf et al. Food Security: GM Crops Threaten Biodiversity R. Tirado and P. Johnston Food Security: Rigorous Regulation Required M. Mellon Food Security: Focus on Agriculture J. R. Porter et al. Food Se...
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