نتایج جستجو برای: agricultural inputs
تعداد نتایج: 163714 فیلتر نتایج به سال:
Under price ceilings and quality floors for agricultural inputs in cash crop sectors in developing countries where credit markets are weak, imperfect information on the ability of farmers to pay for their inputs at the end of the cropping season may lead the decentralized production of those inputs by risk averse private input providers to be inefficient. A coordinating agency and/or subsidies ...
Climate change is likely to affect the nature of pathogens/ chemicals in the environment and their fate and transport. We assess the implications of climate change for changes in human exposures to pathogens/chemicals in agricultural systems in the UK and discuss the effects on health impacts, using expert input and literature on climate change; health effects from exposure to pathogens/chemica...
Efficient use of assets in agriculture is a goal for policy-makers and farmers. Agricultural input resources are scarce therefore optimum use of inputs in different agricultural operations is important. Mathematical programming technique such as data envelopment analysis (DEA) is a well-known approach for estimation efficiency of agricultural DMUs. In this study, efficiency of kidney bean produ...
Climate change and stagnating crop yields may cause a decline of SOC stocks in agricultural soils leading to considerable CO2 emissions and reduced agricultural productivity. Regional model-based SOC projections are needed to evaluate these potential risks. In this study, we simulated the future SOC development in cropland and grassland soils of Bavaria in the 21(st) century. Soils from 51 stud...
This report reviews the concept and measurement of agricultural productivity with special references to USDA multifactor productivity statistics. An American Agricultural Economics Association task force has examined the sources and procedures used in constructing the existing statistics and recommends that USDA: (1) place greater emphasis on improving methodology; (2) move further toward a com...
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