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Monday, July 27, 2020 | History

2 edition of integrated model of perennial and annual crop production for Sub-Saharan countries found in the catalog.

integrated model of perennial and annual crop production for Sub-Saharan countries

Robert D. Weaver

integrated model of perennial and annual crop production for Sub-Saharan countries

by Robert D. Weaver

  • 187 Want to read
  • 20 Currently reading

Published by International Economics Dept., The World Bank in [Washington, D.C.] (1818 H St. NW, Washington 20433) .
Written in English

    Places:
  • Africa, Sub-Saharan
    • Subjects:
    • Agriculture -- Economic aspects -- Africa, Sub-Saharan -- Econometric models.,
    • Food crops -- Economic aspects -- Africa, Sub-Saharan -- Econometric models.,
    • Farms, Small -- Africa, Sub-Saharan -- Econometric models.

    • Edition Notes

      StatementRobert D. Weaver.
      SeriesPolicy, planning, and research working papers ;, WPS 175
      Classifications
      LC ClassificationsHD2117 .W4 1989
      The Physical Object
      Pagination60 p. ;
      Number of Pages60
      ID Numbers
      Open LibraryOL1792081M
      LC Control Number89189747

      Crop Improvement, Adoption and Impact of Improved Varieties in Food Crops in Sub-Saharan Africa - Kindle edition by Walker, T.S., Alwang, J., Walker, T.S., Alwang, J.. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Crop Improvement, Adoption and Impact of Improved Varieties in Cited by: Diversity is the norm in African farming systems. Even at the level of the individual farm unit, farmers typically cultivate 10 or more crops in diverse mixtures that vary across soil type, topographical position and distance from the household compound. Dixon and colleagues () provide the most comprehensive description of farming systems globally (Table and Figure .

      Integrated management of cereal stem borers and Striga weed in maize-based cropping systems in Africa Z.R. Khan International Centre for Insect Physiology and Ecology (ICIPE) Maize is the most important cereal crop, which serve as staple food for millions in sub-Saharan Africa. The lepidopterous stem borers seriously limit. Climate change and agriculture are interrelated processes, both of which take place on a global warming affects agriculture in a number of ways, including through changes in average temperatures, rainfall, and climate extremes (e.g., heat waves); changes in pests and diseases; changes in atmospheric carbon dioxide and ground-level ozone concentrations; .

      Crop productivity and supply estimates producing the most accurate predictions are used to construct predictions of crop yields, area cultivated and ultimately production under 20 climate change scenarios. Impacts are predicted for each crop for SSA in aggregate and for the preferred crop for each region. 1. Introduction. Global food security is a fundamental challenge for Earth's current and future population. Currently around million people in the world are under-nourished (Food and Agricultural Organisation, ).Due to an increasing global population and changes in food consumption patterns, it is expected that crop production needs to double by , for which Cited by: 4.


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Integrated model of perennial and annual crop production for Sub-Saharan countries by Robert D. Weaver Download PDF EPUB FB2

Integrated model of perennial and annual crop production for Sub-Saharan countries. [Washington, D.C.] ( H St. NW, Washington ): International Economics Dept., The World Bank, [] (OCoLC) Document Type: Book: All Authors / Contributors: Robert D Weaver. An Integrated Model of Perennial and Annual Crop Production for Sub-Saharan Countries Robert D.

Weaver This mnicroeconomic model of household choice reflects the fact that crop production in Sub-Saharan Africa is dominated by smallholders who allocate household labor acioss annual and perennial crops and, in some cases, to wage labor markets.

The Land Institute. The Land Institute is a (c)(3) non-profit organization based in Salina, Kansas, that was founded in The Land Institute’s work, led by a team of plant breeders and ecologists in multiple partnerships worldwide, is focused on developing perennial grains, pulses and oilseed bearing plants to be grown in ecologically intensified, diverse crop mixtures known.

An Integrated Model of perennial and annual crop production for sub-Saharan countries Weaver, R. D.,International Economics Department. In sub-Saharan Africa (SSA), the yields of the main cereal crops have stagnated at less than 25% of potentially attainable yields while the per capita food production has continued to decrease over the last 5 decades.

In many parts of SSA cereal crop yields are estimated File Size: KB. In a strongly argued paper ‘Integrated crop–livestock systems in sub-Saharan Africa: an option or an impera-tive?’ published several years ago () in Outlook on Agriculture, Smith et al concluded that, to be sustainable, future increases in agricultural productivity in Sub-Saharan Africa (SSA) would have to be based onCited by: We projected US agricultural production in and at 45 representative sites, using 2 scenarios of climate change, developed with the Hadley Centre Model and.

has increased at an annual rate of % and is estimated to be kg inwhich is about 35% higher than the average for developing countries. The future of the legume crop sector remains positive in Sub-Saharan Africa if these crops get the required policy attention in terms of research and institutional infrastructure.

However File Size: 1MB. Integrating crop and livestock in smallholder production systems for food security and poverty reduction in sub-Saharan Africa. integrated crop-livestock production systems has evolved.

36 Emerging Technologies to Benefit Farmers FIGURE â Changes in cereal production,in sub-Saharan Africa and Asia. eps NOTE: Increases in yields were bitmap images due primarily to increased land use in sub-Saharan Africa but to increased production per unit of land area in South Asia.

The attainable crop yields following the ORS definition and traditional planting rules were compared. In a first step, the ORS definition, established for the Volta Basin in West Africa, was adjusted for two different crop varieties and five different locations in Cameroon using a Monte-Carlo approach and the physically-based crop model Size: KB.

There is therefore substantial scope for increasing agricultural production in Sub-Saharan Africa, particularly in more remote areas. Total crop production relative to potential production is 45 percent for areas within four hours travel time from a city ofpeople.

Handbook of Climate Change and Agroecosystems:The Agricultural Model Intercomparison and Improvement Project (AgMIP) Integrated Crop and Economic Assessments Impacts, Adaptation, and Mitigation 3) - Kindle edition by Rosenzweig Cynthia & Hillel Daniel, Cynthia Rosenzweig.

Download it once and read it on your Kindle device, PC, phones or tablets/5(10). Sub-Saharan Africa (SSA) where many people depend on agriculture for subsistence and incomes [2].

Agricul-ture, and especially crop growing, is heavily dependent on weather events in SSA, where 97% of agricultural land is rainfed [3]. The impact of climate change on crop yields is therefore a major concern in this Size: KB. Abstract. The impact of climate variability is expected to have significant impacts on crop production in Sub-Saharan Africa.

Being a region with high climate vulnerability, the quantification and understanding of the extent and rate of impact of climate variability on crop productivity is highly : Ephraim Sekyi-Annan, Ernest Nti Acheampong, Nicholas Ozor.

Technology for small scale farmers in sub-Saharan Africa: experience with food crop production in five major ecological zones (English) Abstract This report studies the technology which is available to small scale farmers in Africa and assesses its applicability in the context of financial, economic and managerial constraints which face rural Cited by: Chapter 4 - Food supply systems in Africa Agriculture in transition: Factors affecting food security.

The agricultural production and food supply systems of a country depend on many factors including government policy, ecological potential, and the level of technology, inputs and skills of the agricultural producers.

Introduction. Southern Africa is projected to experience a sharp decline in crop yields by because of climate change and increased climate variability (IPCC,IPCC, ; Lobell et al., ; Rurinda et al., ).The region is already grappling with warming temperatures, heat waves, frequent intra-seasonal rainfall variability and droughts, and recurrent episodes of Cited by: 5.

Sub-Saharan Africa’s agricultural productivity—as measured by output relative to agricultural land area—has accelerated over time. However, on a per capita basis, it has declined.

Historically, most of the gains in crop production were due to changes in area planted. While additional land was available to be brought into food production File Size: KB. Meanwhile, serious threats have emerged to the model of trade-led growth.

New technologies could draw production closer to the consumer and reduce the demand for labor. And conflicts among large countries could lead to a retrenchment or a segmentation of GVCs. This book examines whether there is still a path to development through GVCs and by:.

The IFPRI SPAM (You and others b) is designed to estimate the spatial distribution of crop production in Sub-Saharan Africa. The model combines data on national and subnational crop area and production (three-year average, –), land cover, and land suitability using a .Modeling the profitability of power production from short-rotation woody crops in Sub-Saharan Africa Thomas Buchholza,*, Timm Tennigkeitb, Axel Weinreichb, Kai Windhorstb, Izael DaSilvac aGund Institute for Ecological Economics, University of Vermont, Main Street, Burlington, VTUSA bUNIQUE Forestry and Land Use GmbH, Schnewlinstraße 10.

This study estimates of the impact of climate change on yields for the four most commonly grown crops (millet, maize, sorghum and cassava) in Sub-Saharan Africa (SSA). A panel data approach is used to relate yields to standard weather variables, such as temperature and precipitation, and sophisticated weather measures, such as evapotranspiration and the standardized Cited by: