Experimental Determination of Growth-Stage-Specific Crop Coefficient of Jatropha Curcas in Sub-Humid Region of NIgeria

Fagbayide, S.D and Ewemoje, T. A and Oluwasemire, K.O (2019) Experimental Determination of Growth-Stage-Specific Crop Coefficient of Jatropha Curcas in Sub-Humid Region of NIgeria. In: 2019 ASABE Annual International Meeting, July 7-10, 2019, Boston, Massachusetts.

Text EXPERIMENTAL DETERMINATION OF GROWTH-STAGE-SPECIFIC CROP COEFFICIENT OF JATROPHA CURCAS IN SUB-HUMID REGION OF NIGERIA.pdf Download (592kB)

Abstract

Information on actual evapotranspiration and crop coefficient (Kc) of Jatropha curcas whether under rain fed and/or irrigated agriculture has not been documented in humid sub-tropical regions in any FAO repository documents. Field experiments were conducted at Akure, Ondo State and Ilaro, Ogun State, Nigeria during 2015 and 2016 cropping seasons to determine growth-stagespecific crop coefficient (Kc) and crop water use for Jatropha curcas. Five lysimters were standardized and used for this study. Jatropha was grown in each lysimeter made of cylindrical drum of circular cross-sectional area of 2460.0 cm2,56.0 cm diameter and 100.0 cm depth filled with undisturbed sandy-loam soil. Irrigation frequencies in these lysimeters consist of daily; four times weekly; thrice weekly; twice weekly and zero water application (control). The water application was two litres per plant per irrigation using drip pressure compensating emitter that discharged at 4 litres per hour. Climatic variables were obtained for the determination of ETo using the FAO-Penman Monteith model. Crop coefficient (Kc) was computed on a weekly basis with reference to crop development stages. Average crop coefficient (Kc) values obtained for Jatropha in Akure at different growth stages were 0.57, 0.90, 1.23 and 0.74; in Ilaro were 0.65, 0.90, 1.34 and 0.75 for the initial, development, mid-season and late season respectively. Average ETc obtained in Akure and Ilaro for the initial, development, mid-season and late season were 67.9, 187.4, 116.1 and 240.6; and 106.03, 255.30, 164.57 and 282.60 mm/week respectively. The results obtained will assist in designing appropriate irrigation schedule for optimum production of Jatropha in sub-tropical regions of Nigeria

Item Type:	Conference or Workshop Item (Paper)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mr Adedamola Bameke
Date Deposited:	23 Nov 2020 12:24
Last Modified:	23 Nov 2020 12:24
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/1241

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