期刊名称：Science et changements planétaires / Sécheresse
印刷版ISSN：1147-7806
电子版ISSN：1777-5922
出版年度：1995
卷号：6
期号：4
页码：325-330
出版社：John Libbey Eurotext
摘要：Authors Kossi Euloge Agbossou , Charles Baldy , Jean-Robert Tiercelin FSA/UNB, BP 526, Cotonou, Bénin, Inra, 2, place Viala, 34060 Montpellier, Engref, BP 5093, 34033, Montpellier Page(s) : 325-30 Published in: 1995 Experimental results obtained in the Savé area (central Benin) by comparing tensiometrical measurements at several depths with sugar cane growth over two consecutive years snowed that the present irrigation schedule caused the cane to suffer severe water stress during critical periods, reducing its productivity. A frequency analysis of ten-day rainfall during the rainy season (from June to October) over the past thirty years showed that a short, intermediate dry season occurred from July-August. Sugar cane productivity could be improved by counter-balancing this by an extra supply of water. A simple method is put forward for monitoring the water-balance, ideally on a day-to-day basis, and detecting days when the water deficit could be compensated by extra irrigation.
