By World Bank
On the way to face the problem of disappointing returns on public funding in irrigation and drainage, new ideas have emerged. those options are in response to commonly to be had know-how and new administration and governance options.
The major message of 'Re-engaging in Agricultural Water administration' is that the irrigation and drainage zone are not stay handled as a standalone quarter, yet might be built-in right into a broader viewpoint, one who embraces the targets of productiveness progress, poverty aid, average assets administration and environmental safety.
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Additional resources for Reengaging in Agricultural Water Management: Challenges and Options (Directions in Development)
Yield index, of just 30 to 60 percent, reflecting the lower potential of rainfed crops and the lack of any major research breakthrough so far. South Asia, where the percentage of arable area under irrigation is the highest, produced the most rapid growth in agricultural productivity. 5). 5. Sources of Growth in Crop Production, 1961–99 120 percent 100 20 80 21 28 45 60 80 40 79 72 20 55 66 34 0 South Asia East Asia Yield Increases Near East and North Africa Latin America and Caribbean Sub-Saharan Africa Harvested land expansion and cropping intensity Source: FAO 2003d.
Returns to water showed similar increases, with both rice and wheat more than doubling their yield per cubic meter (m3). 3. Production Indices for Mainly Irrigated and Mainly Rainfed Crops, 1997–9 prodcution index Irrigated crops 600 500 400 300 200 100 0 Rainfed crops 552 437 272 Rice Source: FAO 2003d. Note: 1961–3 = 100. 4. 7 1997–9 2002–4 Vegetables and melons Citrus fruit Tons/ha Yield 18 16 14 12 10 8 6 4 2 0 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 Fruit excluding melons and citrus Vegetables and melons Citrus fruit Source: FAO Agricultural Production Dataset (1961–2004).
POSTSCRIPT ON SUB-SAHARAN AFRICA The case of Sub-Saharan Africa is raised in many parts of the report and deserves special attention: it is the poorest region, and growing poorer, yet with a large untapped endowment of water resources, Sub-Saharan Africa is where changes in AWM could make the biggest difference. Hitherto, agricultural growth has been largely through extension of lowyielding, rainfed cultivation. The low infrastructure base, low capitalization, scant market development, and high levels of risk combine to keep farmers locked in a poverty trap of low-yielding, self-sufficiency strategies.
Reengaging in Agricultural Water Management: Challenges and Options (Directions in Development) by World Bank