Yield gap analysis of field crops


Book Description

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.




Rainfed Agriculture


Book Description

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.




Oilseed Production in India


Book Description

This book analyses the performance and potential of India’s oilseed sector, identifies the major constraints facing the industry and suggests options for increasing the country’s oilseed production and productivity, taking into account the changing policy environment, increasing demand, slow growth in domestic production and rising imports. India as the world’s largest producer of oilseeds, accounts for about 7-8 per cent of global vegetable oil production. However, the growth in domestic production has not kept pace with the growth in demand. Low yields and high production and market risks due to lack of irrigation facilities and effective risk management have been responsible for widening the demand-supply gap over the years, and the country now imports more than half of its oilseed for domestic consumption. The Technology Mission on Oilseeds (TMO), launched in the mid-1980s, helped achieve self-sufficiency in edible oil production through the spread of technology and the provision of market support. However, increasing demand for edible oils necessitated imports in large quantities, leading to a substantial drain on foreign exchange. Given the competing demands on agricultural land from various crops and enterprises, the production of oilseeds can be increased only if productivity is improved significantly and farmers receive remunerative prices and have assured market access. However, farmers face various constraints in oilseed production; several biotic, abiotic, technological, institutional and socio-economic constraints inhibit exploitation of the full yield potential of crops, which need to be addressed. The book explores these issues using data collected from about 2,000 oilseed growers: 490 soybean farmers, 316 rapeseed-mustard growers, 470 groundnut farmers, 250 sesamum farmers and 470 sunflower growers from selected Indian states. It would be of immense use for scholars and policy makers alike who are working in this field.







Food Security, Farming, and Climate Change to 2050


Book Description

As the global population grows and incomes in poor countries rise, so too, will the demand for food, placing additional pressure on sustainable food production. Climate change adds a further challenge, as changes in temperature and precipitation threaten agricultural productivity and the capacity to feed the world's population. This study assesses how serious the danger to food security might be and suggests some steps policymakers can take to remedy the situation.Using various modeling techniques, the authors project 15 different future scenarios for food security through 2050. Each scenario involves an alternative combination of potential population and income growth and climate change. The authors also examine the specific test case of a hypothetical extended drought in South Asia, to demonstrate the possible effects of increased climate variability on a particular world region. They conclude that the negative effects of climate change on food security can be counteracted by broad-based economic growthparticularly improved agricultural productivityand robust international trade in agricultural products to offset regional shortages. In pursuit of these goals, policymakers should increase public investment in land, water, and nutrient use and maintain relatively free international trade. This inquiry into the future of food security should be of use to policymakers and others concerned with the impact of climate change on international development.




The State of the World's Land and Water Resources for Food and Agriculture


Book Description

The State of the World's Land and Water Resources for Food and Agriculture is FAO's first flagship publication on the global status of land and water resources. It is an 'advocacy' report, to be published every three to five years, and targeted at senior level decision makers in agriculture as well as in other sectors. SOLAW is aimed at sensitizing its target audience on the status of land resources at global and regional levels and FAO's viewpoint on appropriate recommendations for policy formulation. SOLAW focuses on these key dimensions of analysis: (i) quantity, quality of land and water resources, (ii) the rate of use and sustainable management of these resources in the context of relevant socio-economic driving factors and concerns, including food security and poverty, and climate change. This is the first time that a global, baseline status report on land and water resources has been made. It is based on several global spatial databases (e.g. land suitability for agriculture, land use and management, land and water degradation and depletion) for which FAO is the world-recognized data source. Topical and emerging issues on land and water are dealt with in an integrated rather than sectoral manner. The implications of the status and trends are used to advocate remedial interventions which are tailored to major farming systems within different geographic regions.







World Agriculture


Book Description

First Published in 2003. Routledge is an imprint of Taylor & Francis, an informa company.




Properties and Management of Soils in the Tropics


Book Description

Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.




Integrated watershed management for land and water conservation and sustainable agricultural production in Asia


Book Description

Watershed management ; Catchment areas ; Water resource management ; Land management ; Natural resources ; Resource management ; Erosion ; Land use ; Soyabeans ; Soil degradation ; Rain-fed farming ; Food security ; Satellite surveys ; Remote sensing ; Rain ; Statistical analysis ; Runoff ; Soil management / Asia / South East Asia / India / Vietnam / Thailand