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Adaptability constraints of a technically and economically feasible subsurface drainage system in the low-lying acid sulphate soils of Kerala, India
This paper discusses the introduction of subsurface drainage as a tool to improve rice production in low land areas of acid sulphate soils. Pipe drains with 15 and 30 m spacing were installed in farmers' fields in coastal lowlands of Kerala, India, at Kuttanad. Soil conditions improved within 2...
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| Formato: | Printed Book |
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Irrigation and Drainage Systems 18: 329-346, 2004.
2004
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| Acceso en liña: | http://10.26.1.76/ks/00898.pdf |
| LEADER | 014660000a22001450004500 | ||
|---|---|---|---|
| 100 | |a E.K. MATHEW | ||
| 245 | |a Adaptability constraints of a technically and economically feasible subsurface drainage system in the low-lying acid sulphate soils of Kerala, India | ||
| 260 | |c 2004 | ||
| 260 | |b Irrigation and Drainage Systems 18: 329-346, 2004. | ||
| 520 | |a This paper discusses the introduction of subsurface drainage as a tool to improve rice production in low land areas of acid sulphate soils. Pipe drains with 15 and 30 m spacing were installed in farmers' fields in coastal lowlands of Kerala, India, at Kuttanad. Soil conditions improved within 2 years after the introduction of the subsurface drainage and significantly improved the crop yield. Data collected over a period of 14 years, showed a yield increase of 1.1 t/ha (43) compared to non-drained areas. An economic analysis indicated that subsurface drainage is feasible with a benefit-cost ratio of 2.45, an internal rate of return of 47 and a net present value of Rs 5.17 million. The poor financial status of the farmers, however, is the main constraint for the large-scale adoption of the comparatively capital-intensive subsurface drainage systems in the acid sulphate soils of Kerala. | ||
| 650 | |a RICE DRAINAGE ADAPTABILITY ECONOMICS KUTTANAD | ||
| 856 | |u http://10.26.1.76/ks/00898.pdf | ||
| 942 | |c KS | ||
| 999 | |c 70286 |d 70286 | ||
| 952 | |0 0 |1 0 |4 0 |7 0 |9 62250 |a MGUL |b MGUL |d 2015-08-01 |l 0 |r 2015-08-01 |w 2015-08-01 |y KS | ||