Soil moisture management and mulch impact on sugarcane yields under irrigated and rainfed conditions in Côte d’Ivoire
Paper Details
Soil moisture management and mulch impact on sugarcane yields under irrigated and rainfed conditions in Côte d’Ivoire
Abstract
Sugarcane cropping in Côte d’Ivoire is facing a rarefaction of water resources, due to the variability of rainfall and their increasingly reduced frequency. Irrigation, which must compensate for this water deficit, is a real source of depletion of water resources. Also, it is not within reach of cane smallholders because of its high cost. Beside the lack of water, the sugarcane manuel harvesting is becoming more and more expensive. Thus, the Ivorian sugar industries are led to turn to the mechanized green harvesting that generates a large amount of mulch now available on cultivated plots. In the interest of sustainable management of water resources and surface water during rains, this study aimed to evaluate the effect of this mulch on the conservation of soil moisture and the sugarcane yield in order to increase water use efficiency and reduce the pressure of its demand. It was conducted at Ferké 1 in northern Côte d’Ivoire, on two experimental plots (rainfed and irrigated). Two treatments were studied (mulch and no mulch). The results showed that mulch retains soil moisture on both cropping systems (23.4 p.c and 10 p.c.) and improves cane stalk length and cane yield in rainfed conditions. In irrigated conditions, no significant differences were observed in cane yield. The management of soil moisture through the use of mulch is therefore an opportunity for development of the rainfed cane in Côte d’Ivoire.
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Kouamé Konan Didier, Kassi Koffi Fernand Jean-Martial, Kouamé Koffi Gaston, Kouassi Kouassi Virgile, Dove James Harold, Ng Cheong L. Ronald, Zouzou Michel (2018), Soil moisture management and mulch impact on sugarcane yields under irrigated and rainfed conditions in Côte d’Ivoire; JBES, V12, N5, May, P380-389
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