Search Results - subject:"Crop yields."

Did you mean: subject:"Crop yield." (2,308 results)

Forecasting World Crop Yields as Probability Distributions

Ferris, John N. - International Association of Agricultural Economists - IAAE - 2006

assumptions of normal weather and trend crop yields. That weather is seldom normal and that yields seldom fit trends are well … recognized. However, relatively little attention has been given to projecting crop yields stochastically even though computer … deviations to various crop yields and simulate normal distributions using random number generators. For one, deviations of crop …

Persistent link: https://www.econbiz.de/10005525325

Sources of agricultural growth in India: role of diversification towards high-value crops

Joshi, P.K.; Birthal, Pratap Singh; Minot, Nicholas - International Food Policy Research Institute (IFPRI) - 2006

"This study examines the sources of crop income growth in Indian agriculture over the 1980s and 1990s. Using a method developed by Minot (2003), the analysis decomposes crop income growth into the contribution of yield increases, area expansion, price increases, and diversification from...

Persistent link: https://www.econbiz.de/10004996571

The Economic Impacts of Climate Change: Evidence from Agricultural Profits and Random Fluctuations in Weather

Greenstone, Michael; Deschenes, Olivier - Fondazione ENI Enrico Mattei (FEEM) - 2006

This paper measures the economic impact of climate change on US agricultural land by estimating the effect of the presumably random year-to-year variation in temperature and precipitation on agricultural profits. Using long-run climate change predictions from the Hadley 2 Model, the preferred...

Persistent link: https://www.econbiz.de/10005570359

Using a climate index to measure crop yield response

Cai, Ruohong; Mullen, Jeffrey D.; Bergstrom, John C.; … - In: Journal of agricultural and applied economics 45 (2013) 4, pp. 719-737

Persistent link: https://www.econbiz.de/10010208089

Improved fallows in Eastern Zambia: history, farmer practice and impacts

Kwesiga, Freddie; Franzel, Steven; Mafongoya, Paramu; … - International Food Policy Research Institute (IFPRI) - 2005

"The decline in soil fertility in smallholder systems is a major factor inhibiting equitable development in much of sub-Saharan Africa. Some areas fallow in order to strength soil fertility for later planting, but as populations increase, demand follows and continuous cropping becomes the norm...

Persistent link: https://www.econbiz.de/10004996700

Climate change and economic growth: impacts and interactions

Roson, Roberto; Mensbrugghe, Dominique Van der - In: International Journal of Sustainable Economy 4 (2012) 3, pp. 270-285

, variations in crop yields, water availability, human health, tourism, energy demand. Two scenarios are compared: a baseline …

Persistent link: https://www.econbiz.de/10010668630

Percepcion por los expertos de la funcion de densidad de probabilidad de los rendimientos de cultivos

Gallart, Clop I; Merce, M.; Juarez Rubio, Francisco - In: Revista Española de Estudios Agrosociales y Pesqueros (2004) 204

En la literatura sobre determinacion subjetiva de funciones de densidad probabilidad de rendimientos de cultivos, se ha senalado que los agricultores tienden a percibir f.d.p. muy estrechas, un resultado que coincide con el senalado en ortros contextos experimentales. En este trabajo se ha...

Persistent link: https://www.econbiz.de/10010921655

Assessing the impact of high-yielding varieties of maize in resettlement areas of Zimbabwe

Bourdillon, Michael; Hebinck, Paul; Hoddinott, John; … - International Food Policy Research Institute (IFPRI) - 2003

"This study is part of a larger effort to explore the impact of agricultural research on poverty reduction. It examines the diffusion and impact of hybrid maize in selected resettlement areas of rural Zimbabwe, paying particular attention to varieties made widely available from the mid-1990s...

Persistent link: https://www.econbiz.de/10004997190

Assessing the impact of high-yielding varieties of maize in resettlement areas of Zimbabwe

Bourdillon, Michael; Hebinck, Paul; Hoddinott, John; … - International Food Policy Research Institute (IFPRI) - 2003

Persistent link: https://www.econbiz.de/10004997379

Assessing and attributing the benefits from varietal improvement research: evidence from Embrapa, Brazil

Pardey, Philip G.; Alston, Julian M.; Chan-Kang, Connie; … - International Food Policy Research Institute (IFPRI) - 2002

In general, reported rates of return to agricultural R&D are high, but questions have been raised about upward biases in the evidence. Among the reasons for this bias, insufficient attention to attribution aspects. Matching of research benefits and costs is a pervasive problem, the magnitude of...

Persistent link: https://www.econbiz.de/10004996712