Mismatch Between Soil Nutrient Requirements And Fertilizer Applications Implications For Yield Responses In Ethiopia
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Mismatch Between Soil Nutrient Requirements And Fertilizer Applications Implications For Yield Responses In Ethiopia
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Author : Abay, Kibrom A.
language : en
Publisher: Intl Food Policy Res Inst
Release Date : 2021-06-28
Mismatch Between Soil Nutrient Requirements And Fertilizer Applications Implications For Yield Responses In Ethiopia written by Abay, Kibrom A. and has been published by Intl Food Policy Res Inst this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-28 with Political Science categories.
Lack of accurate information about soil nutrient requirements coupled with limited access to appropriate fertilizers could lead to mismatch between soil nutrient requirements and fertilizer applications. Such anomalies and mismatches are likely to have important implications for agricultural productivity. In this paper we use experimental (spectral soil analysis) data from Ethiopia to examine farmers’ response to soil nutrient deficiencies and its implications for yield responses. We find that farmers’ response to macronutrient (nitrogen and phosphorus) deficiencies is not always consistent with agronomic recommendations. For instance, we find that farmers in our sample are applying nitrogen fertilizers to soils lacking phosphorus, potentially due to lack of information on soil nutrient deficiencies or lack of access to appropriate fertilizers in rural markets. On the other hand, farmers respond to perceivably poor-quality soils and acidic soils by applying higher amount of nitrogen and phosphorus fertilizers per unit of land. We further show that such mismatches between fertilizer applications and soil macronutrient requirements are potentially yield-reducing. Those farmers matching their soil nutrient requirements and fertilizer application are likely to enjoy additional yield gains and the vice versa. Marginal yield responses associated with nitrogen (phosphorus) application increases with soil nitrogen (phosphorus) deficiency. Similarly, we find that farmers’ response to acidic soils is not yield-enhancing. These findings suggest that such mismatches may explain heterogeneities in marginal returns to chemical fertilizers and the observed low adoption rates of chemical fertilizers in sub-Saharan Africa. As such, these findings have important implications for improving input management practices and fertilizer diffusion strategies.
Mismatch Between Soil Nutrient Requirements And Fertilizer Applications
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Author : Kibrom A. Abay
language : en
Publisher:
Release Date : 2021
Mismatch Between Soil Nutrient Requirements And Fertilizer Applications written by Kibrom A. Abay and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Agricultural Intensification In Ethiopia Patterns Trends And Welfare Impacts
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Author : Berhane, Guush
language : en
Publisher: Intl Food Policy Res Inst
Release Date : 2022-12-30
Agricultural Intensification In Ethiopia Patterns Trends And Welfare Impacts written by Berhane, Guush and has been published by Intl Food Policy Res Inst this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-30 with Political Science categories.
Ethiopia has made substantial efforts in the last three decades to increase agricultural productivity through modern input intensification and stimulate overall economic growth. Despite the high growth rates in recent decade, Ethiopia’s overall intensification and yield levels remained below what is considered optimal. This study examines the patterns, trends, and drivers of agricultural intensification and productivity growth during the recent decade (2012 - 2019) using three rounds of representative household data collected from the four main agriculturally important regions of the country. The descriptive results indicate a positive trend in both the adoption rate and intensity of inputs and output, albeit from a low base compared to other contexts and with considerable heterogeneity by access to information, rainfall levels and variability, labor, soil quality, remoteness, among others. The econometric results show significant association between intensification, yield growth, household dietary diversity (a proxy measure for food and nutrition security), and consumer durables. However, the results on the association between current yield levels and per capita consumption expenditures are mixed (i.e., while an increase in cereal yield only improve food consumption expenditures, an increase in cash crops yield mainly improve non-food consumption expenditures). In sum, while the increasing input intensification and the resulting yield gains are associated with improvement in household diets and consumer durables, it falls short to have strong impact on incomes (as measured by total consumption expenditures), indicating that more efforts have to be made to see meaningful impacts on higher order outcomes. Additional welfare improving productivity gains through increased input intensifications may require investments to put in place appropriate fertilizer blends linked with localized soil nutrient requirements, investments to generate locally suited improved seeds and appropriate mechanisms to reach farmers, ways to mitigate production (rainfall) risk, and investments to remodel Ethiopia’s extension system to provided much needed technical support to farmers on production methods.
World Fertilizer Trends And Outlook To 2022
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2019-10-30
World Fertilizer Trends And Outlook To 2022 written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-30 with Technology & Engineering categories.
This report presents the world nitrogen, phosphorus and potassium fertilizer medium-term supply and demand forecasts for the period 2017-2022. FAO, in collaboration with other members of the Fertilizer Outlook Expert Group dealing with fertilizer production, consumption and trade, provides forecasts of world and regional fertilizer supply, demand and potential balance.
Fertilizer Use In African Agriculture
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Author :
language : en
Publisher: World Bank Publications
Release Date : 2007
Fertilizer Use In African Agriculture written by and has been published by World Bank Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Business & Economics categories.
The good practice guidelines - which form the basis of an interactive policymaker's tool kit included on a CD accompanying the book - relate not only to the more focused problem of encouraging increased fertilizer use by farmers, but also to the broader challenge of creating the type of enabling environment that is needed to support the emergence of efficient, dynamic and commercially viable fertilizer marketing systems."--Jacket.
Strategies And Priorities For African Agriculture
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Author : Xinshen Diao
language : en
Publisher: Intl Food Policy Res Inst
Release Date : 2012
Strategies And Priorities For African Agriculture written by Xinshen Diao and has been published by Intl Food Policy Res Inst this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Social Science categories.
In the first decade of the twenty-first century, countries within Sub-Saharan Africa reached milestones that seemed impossible only ten years ago: macroeconomic stability, sustained economic growth, and improved governance. Continuing this pattern of success will require enhancing the region’s agricultural sector, in which a large proportion of poor people make a living. The authors of Strategies and Priorities for African Agriculture: Economywide Perspectives from Country Studies argue that, although the diversity of the region makes generalization difficult, increasing staple-crop production is more likely to reduce poverty than increasing export-crop production. This conclusion is based on case studies of ten low-income African countries that reflect varying levels of resource endowments and development stages. The authors also recommend increased, more efficient public investment in agriculture and agricultural markets and propose new directions for future research. The last ten years have been an encouraging time for one of the world’s poorest regions; this book offers an analysis of how recent, promising trends can be sustained into the future.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1998
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Agriculture categories.
Yield Gaps And Potential Agricultural Growth In West And Central Africa
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Author : Nin-Pratt, Alejandro
language : en
Publisher: Intl Food Policy Res Inst
Release Date : 2011
Yield Gaps And Potential Agricultural Growth In West And Central Africa written by Nin-Pratt, Alejandro and has been published by Intl Food Policy Res Inst this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Social Science categories.
West and Central African nations face major obstacles to achieving the Millennium Development Goal of cutting poverty and hunger in half by 2015, not least among them the fragile state of their agriculture. Although most regional economies depend on agriculture for employment, national income, and export revenues, farm productivity tends to be low, owing to relatively little use of chemical fertilizers, improved seeds, and other modern technologies. Yield Gaps and Potential Agricultural Growth in West and Central Africa responds to this problem by identifying potential areas of growth in the agricultural and livestock sectors. Using data on the soil, water availability, and weather in different parts of West and Central Africa, the authors find significant gaps in different locations between the potential and actual yield of various agricultural products. They then use an economywide multimarket model to simulate the future economic effects of closing these yield gaps. In coastal nations, crops such as cassava, cereals, and yams have the greatest yield gaps, whereas, in the Sahel, livestock, rice, coarse grains and oilseeds (groundnuts) have more room for growth. Although identifying these yield gaps does not guarantee that they can be closed, it does provide a focus for development efforts in the region. The authors conclude, moreover, that if such efforts involve transnational cooperation in agricultural research, marketing, and other areas, they could produce significant benefits across West and Central Africa. This study's findings will be of interest to policymakers, researchers, and others concerned with African development.
Micronutrient Deficiencies In Global Crop Production
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Author : Brian J. Alloway
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-02-01
Micronutrient Deficiencies In Global Crop Production written by Brian J. Alloway and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-02-01 with Technology & Engineering categories.
A deficiency of one or more of the eight plant micronutrients (boron, chlorine, copper, iron, manganese, molybdenum, nickel and zinc) will adversely affect both the yield and quality of crops. Micronutrient deficiencies in crops occur in many parts of the world, at various scales (from one to millions of hectares), but differences in soil conditions, climate, crop genotypes and management, result in marked variations in their occurrence. The causes, effects and alleviation of micronutrient deficiencies in crops in: Australia, India, China, Turkey, the Near East, Africa, Europe, South America and the United States of America, are covered, and these are representative of most of the different conditions under which crops are grown anywhere in the world. Links between low contents of iodine, iron and zinc (human micronutrients) in staple grains and the incidence of human health problems are discussed, together with the ways in which the micronutrient content of food crops can be increased and their bioavailability to humans improved. Detailed treatment of topics, such as: soil types associated with deficiencies, soil testing and plant analysis, field experiments, innovative treatments, micronutrients in the subsoil, nutrient interactions, effects of changing cropping systems, micronutrient budgets and hidden deficiencies in various chapters provides depth to the broad coverage of the book. This book provides a valuable guide to the requirements of crops for plant micronutrients and the causes, occurrence and treatment of deficiencies. It is essential reading for many agronomy, plant nutrition and agricultural extension professionals.
The State Of The World S Land And Water Resources For Food And Agriculture
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Author : Earthscan
language : en
Publisher: Routledge
Release Date : 2011
The State Of The World S Land And Water Resources For Food And Agriculture written by Earthscan and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with BUSINESS & ECONOMICS categories.
They therefore require particular attention and specific remedial action.