Estimating the potential of rain-fed agriculture

Estimating the potential of rain-fed agriculture

Author: Peter Droogers

Publisher: IWMI

Published: 2001

Total Pages: 21

ISBN-13: 9290904437

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A global estimate of the potential for rain-fed agriculture could provide an answer to the question “How much irrigation is required?” Global studies done to date have relied on course resolution climate data (0.5-1 degree arc). In this study a high-resolution climate dataset (10-minute arc) was combined with a soil water storage capacity map and a dynamic water and crop model to estimate the potential for rain-fed agriculture. The methodology applied here, based ona high-resolution climate dataset, allows analyses on a global scale without losing the smaller regional-scale issues.


Rainfed Agriculture

Rainfed Agriculture

Author: Suhas Pralhad Wani

Publisher: CABI

Published: 2009-01-01

Total Pages: 326

ISBN-13: 1845933893

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This book, which contains 14 chapters, covers all aspects of rainfed agriculture, starting with its potential, current status, rainwater harvesting and supplementary irrigation, to policies, approaches, institutions for upscaling, and impacts of integrated water management programmes in rainfed areas.


Rainfed Agriculture

Rainfed Agriculture

Author: Suhas Pralhad Wani

Publisher: CABI

Published: 2009-01-01

Total Pages: 328

ISBN-13: 1845934385

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Rainfed agriculture is generally overlooked by development investors, researchers and policy makers due to limited confidence in its ability to increase agricultural production and development. However, research undertaken by a team of leading scientists from global organizations demonstrates its potential in achieving food security, improving livelihoods and most importantly addressing issues of equity and poverty reduction in dryland areas - the hot spots of poverty. On the basis of case studies from varied agricultural and ecological regions in Asia and Africa, chapters discuss the need for adopting new paradigms between rainfed and irrigated agriculture, catchment/micro-watershed management approaches, upgrades in science-based development and more investments in rainfed areas. Yield gaps for major rainfed crops are analysed globally and possible ways and means including technological, social, and institutional options to bridge the yield gaps are discussed in detail. Covering areas such as rainwater harvesting and its efficient use, the rehabilitation of degraded land and assessment methods for social, environmental and economic impacts, this book will be necessary for both academics and policy makers working in water management, agriculture and sustainable development.


Water Productivity in Agriculture

Water Productivity in Agriculture

Author: J. W. Kijne

Publisher: CABI

Published: 2003

Total Pages: 354

ISBN-13: 1845933397

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First title in a major new seriesAddresses improving water productivity to relieve problems of scarcity and competition to provide for food and environmental securityDraws from scientists having a multitude of disciplines to approach this important problemIn a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water. Focusing on both irrigated and rain-fed agriculture, this book gives a state of the art review of the limits and opportunities for improving water productivity in crop production. It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations and partners worldwide. It will be of significant interest to those working in areas of soil and crop science, water management, irrigation, and development studies.


Unlocking the Water Potential of Agriculture

Unlocking the Water Potential of Agriculture

Author: Food and Agriculture Organization of the United Nations

Publisher: Food & Agriculture Org.

Published: 2003

Total Pages: 80

ISBN-13: 9789251049112

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All statistical evidence confirms that agriculture is the key sector for water management, now and in the next decades. Nevertheless, the rural water development sector fails at present to get priority, compared to other competing sectors, in international fora. Strong and new arguments are needed to bring rural water back "on line." Agriculture policies and investments will need to become more strategic. They will have to unlock the potential of agricultural water management practices to raise productivity, spread equitable access to water, and conserve the natural productivity of water resources base.


The Nile Basin

The Nile Basin

Author: John Waterbury

Publisher: Yale University Press

Published: 2008-10-01

Total Pages: 223

ISBN-13: 0300127685

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The supply and management of fresh water for the world’s billions of inhabitants is likely to be one of the most daunting challenges of the coming century. For countries that share river basins with others, questions of how best to use and protect precious water resources always become entangled in complex political, legal, environmental, and economic considerations. This book focuses on the issues that face all international river basins by examining in detail the Nile Basin and the ten countries that lay claim to its waters. John Waterbury applies collective action theory and international relations theory to the challenges of the ten Nile nations. Confronting issues ranging from food security and famine prevention to political stability, these countries have yet to arrive at a comprehensive understanding of how to manage the Nile’s resources. Waterbury proposes a series of steps leading to the formulation of environmentally sound policies and regulations by individual states, the establishment of accords among groups of states, and the critical participation of third-party sources of funding like the World Bank. He concludes that if there is to be a solution to the dilemmas of the Nile Basin countries, it must be based upon contractual understandings, brokered by third-party funders, and based on the national interests of each basin state. “This excellent book makes a significant contribution to the rational discussion of Nile conflicts and should be helpful to many of the other 282 international river basins facing similar problems.”—Peter P. Rogers, Harvard University


Rainwater Harvesting

Rainwater Harvesting

Author: Stockholm Environment Institute

Publisher: UNEP/Earthprint

Published: 2009

Total Pages: 80

ISBN-13: 9789280730197

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Climate change, demand for development and already deteriorating state of ecosystems produce an immediate need for innovative opportunities enabling development and human well-being without undermining ecosystem services. Rainwater harvesting creates synergies by upgrading rainfed agriculture and enhancing productive landscapes. The publication describes rainwater harvesting systems, their roles and impacts. It focuses to both negative and positive aspects of using technology and explains how we can decrease constraints and build upon benefits. It examines 29 cases of different economic activities including forestry, agriculture, watershed development and, rural and urban development.


New modalities for managing drought risk in rainfed agriculture

New modalities for managing drought risk in rainfed agriculture

Author: Ward, Patrick S.

Publisher: Intl Food Policy Res Inst

Published: 2016-10-05

Total Pages: 32

ISBN-13:

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In this paper we explore the potential for a new approach to managing drought risk among rainfed rice producers in Odisha, India. Droughts have historically been a serious constraint to agricultural production in rainfed agricultural systems, with droughts resulting in significant reductions in both yields and cultivated area, in turn leading to significant impacts on rural livelihoods and food security. Scientists and policy makers have proposed various strategies for managing risks, with limited success. In this study we consider two such strategies, specifically drought-tolerant rice and weather index insurance. While neither drought-tolerant cultivars nor weather index insurance products are perfect solutions for adequately managing drought risk in and of themselves, there is scope to exploit the benefits of each and bundle them into a complementary risk management product, specifically through proper index calibration and an optimized insurance design. In this study, we explore preferences for such a complementary risk management product using discrete choice experiments in Odisha, India. We are able to estimate the added value that farmers perceive in the bundled product above and beyond the value associated with each of the independent products. We also show that valuations are sensitive to the basis risk implied by the insurance product, with farmers less enthusiastic about risk management products that leave significant risks uninsured.


Water Requirements Manual for Irrigated Crops and Rainfed Agriculture

Water Requirements Manual for Irrigated Crops and Rainfed Agriculture

Author: George H. Hargreaves

Publisher:

Published: 1975

Total Pages: 40

ISBN-13:

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Introduction; definition of terms; estimation potential evapotranspiration, ETP; irrigation efficiency; leaching requirements; soil conditions; scheduling irrigation;dependable precipitation; moisture and crop production; moisture deficit classification.