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Water productivity, the yield gap, and nutrition

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Release : 2021-03-26
Genre : Technology & Engineering
Kind : eBook
Book Rating : 451/5 ( reviews)

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Book Synopsis Water productivity, the yield gap, and nutrition by : Lundqvist, Jan., Malmquist, L., Dias, P., Barron, J. and Wakeyo, M. B.

Download or read book Water productivity, the yield gap, and nutrition written by Lundqvist, Jan., Malmquist, L., Dias, P., Barron, J. and Wakeyo, M. B.. This book was released on 2021-03-26. Available in PDF, EPUB and Kindle. Book excerpt: The report uses a nutritional water productivity (NWP) framework to interpret the relationship between nutrition and water in the context of water challenges. It argues that higher yields – of both staple and nutritious crops – are possible, even in water-stressed areas. This will require an agricultural transformation that ensures that efforts to enhance water productivity are linked to the promotion of healthy diets. Increasing water productivity and stabilizing yields at realistic levels will also be crucial to increasing the resilience of farmers. Better coordination and timing of water and other inputs, notably fertilizers and improved seeds, is likely to enhance productivity and to reduce the threats of a further encroachment of agriculture into other ecosystems. A diversified production system is required for food security, nutrition and poverty alleviation. There is an opportunity to provide strategic support for crops and other farm produce with high economic and nutritional value. A range of crops and other produce can be included in farming systems ranging from rainfed to irrigated agriculture. For the farmers to be stimulated and able to capitalize on the increasing need and demand for such produce, the development of markets, and associated investments in cold storage, roads/transport and food procurement programmes that prioritize nutritious produce will be key.

Yield gap analysis of field crops

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Release : 2018-06-29
Genre : Technology & Engineering
Kind : eBook
Book Rating : 136/5 ( reviews)

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Book Synopsis Yield gap analysis of field crops by : Food and Agriculture Organization of the United Nations

Download or read book Yield gap analysis of field crops written by Food and Agriculture Organization of the United Nations. This book was released on 2018-06-29. Available in PDF, EPUB and Kindle. Book excerpt: To feed a world population that will exceed 9 billion by 2050 requires an estimated 60% increase over current primary agricultural productivity. Closing the common and often large gap between actual and attainable crop yield is critical to achieve this goal. To close yield gaps in both small and large scale cropping systems worldwide we need (1) definitions and techniques to measure and model yield at different levels (actual, attainable, potential) and different scales in space (field, farm, region, global) and time (short and long term); (2) identification of the causes of gaps between yield levels; (3) management options to reduce the gaps where feasible and (4) policies to favour adoption of sustainable gap-closing solutions. The aim of this publication is to critically review the methods for yield gap analysis, hence addressing primarily the first of these four requirements, reporting a wide-ranging and well-referenced analysis of literature on current methods to assess productivity of crops and cropping systems.

Policy guide to improve water productivity in small-scale agriculture

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Release : 2020-05-01
Genre : Technology & Engineering
Kind : eBook
Book Rating : 434/5 ( reviews)

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Book Synopsis Policy guide to improve water productivity in small-scale agriculture by : Food and Agriculture Organization of the United Nations

Download or read book Policy guide to improve water productivity in small-scale agriculture written by Food and Agriculture Organization of the United Nations. This book was released on 2020-05-01. Available in PDF, EPUB and Kindle. Book excerpt: In developing countries, further progress of irrigation is essential for increasing food security and farmers’ income. However, developing small-scale schemes remains a challenge due to multiple factors that must be taken into consideration, such as diversity of small-scale schemes, a large number of water users, social disharmony over the water use, varying water demands of multi-cropping systems, heterogeneity of equipment over the scheme. Furthermore, on-farm irrigation development has a major role in enhancing Agricultural Water Management (AWM). The previous development methods considered the improvement of single-factor productivity, but agriculture is undergoing a global shift from the single objective of outputs (such as yield or net income) to multiple objectives of increasing outputs while conserving natural resources. Many pathways towards enhancement of Water Productivity (WP) are directly related to improving overall farm agronomic management (irrigation, fertilization, plant density, plant protection, etc.), while external measures must be applied to ensure sustainability of introduced good practices (lack of input markets, scarce knowledge, poor infrastructures, water regulations, etc.). Thus introducing irrigation practices to farmers must undergo a step-wise process to ensure that costs do not outweigh achievable benefits, and both institutional and technical environment are capable to sustain results. This is the case in smallholders’ schemes, where farmers are poorly resourced. In order to address these issues, the current policy guide presents a combined methodology, which involves practical experiences drawn from FAO work in the three countries as well as researchers’ results to line up a set of feasible measures to improving WP.

Water Productivity and Food Security

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Release : 2021-08-21
Genre : Science
Kind : eBook
Book Rating : 519/5 ( reviews)

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Book Synopsis Water Productivity and Food Security by : M. Dinesh Kumar

Download or read book Water Productivity and Food Security written by M. Dinesh Kumar. This book was released on 2021-08-21. Available in PDF, EPUB and Kindle. Book excerpt: Water Productivity and Food Security: Global Trends and Regional Patterns, Volume Three reviews the need for water productivity improvements in agriculture, addressing three distinct questions pertaining to agricultural water productivity improvement in developing countries, including what are the regions where water is a limiting factor for raising agricultural outputs and water productivity improvements, what are the technological measures in irrigation that can raise agricultural water productivity and result in water saving at various scales, and what opportunities exist in the developing economies of South Asia and Africa for raising water productivity and improving water economy at basin scale. This book provides a framework to characterize river basins based on water availability, water supplies, water uses and water demands to ascertain the need and measures available for improving crop water productivity that would be effective at various scales, i.e., plant-level, plot-level, irrigation system level and basin level. This is an essential reference for anyone interested in water management and agriculture. - Presents clear explanations of the physical and technical measures that can be adopted to improve productivity of water in agricultural production under different basin conditions - Offers physical strategies for improving water productivity in agriculture in different agroecological regions, along with the institutional and policy measures that affect them - Includes methodologies for assessing the food security challenges of individual nations using empirical analysis and global datasets

9789290908487

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Author :
Release : 2017-06-01
Genre : Technology & Engineering
Kind : eBook
Book Rating : 483/5 ( reviews)

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Book Synopsis 9789290908487 by : Giordano, Meredith

Download or read book 9789290908487 written by Giordano, Meredith. This book was released on 2017-06-01. Available in PDF, EPUB and Kindle. Book excerpt:

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