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1 Le Quang, M.; Nguyen, T. C.; Tuong, P. 1992. Basin-cum-furrow irrigation technique for post-rice upland crop on heavy clay soil ricelands of Mekong Delta, Vietnam. In Feyen, J.; Mwendera, E.; Badji, M. (Eds.), Advances in planning, design and management of irrigation systems as related to sustainable land use: Proceedings of an International Conference organized by the Center for Irrigation Engineering of the Katholieke Universiteit Leuven in cooperation with the European Committee for Water Resources Management, Leuven, Belgium, 14-17 September 1992. Vol. 1. Leuven, Belgium: Center for Irrigation Engineering. pp.395-407.

Furrow irrigation ; Basin irrigation ; Clay soils ; Rice ; River basins ; Farmers' attitudes ; Economic analysis ; Performance indexes / Vietnam / Mekong River

(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014368)

Flat topography, heavy clay soil with low permeability and cracks resulting in high water loss as well as waterlogging after sudden heavy showers hinder farmers' acceptance to basin irrigation for post-rice upland crop. Conventional furrow irrigation technique was not practiced because of high input for land shaping. A new irrigation technique was tested in which water was distributed by furrows at 5 and 10 meters spacings, allowed to overlap the furrows and to flow overland while being infiltrated both horizontally and vertically into root zone. The furrows also removed excess water. Factors affecting the technique including furrow spacings, irrigation frequency, mulching and land preparation were also tested. Economic performance indicators at farm level and farmers' acceptance were analyzed.