Journal
SOIL AND WATER RESEARCH
Volume 6, Issue 1, Pages 10-20Publisher
CZECH ACADEMY AGRICULTURAL SCIENCES
DOI: 10.17221/45/2009-SWR
Keywords
cassava; drip irrigation; irrigation regimes; soil-water regimes; supplemental irrigation; water use; water use efficiency; yields
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Funding
- Center for Research and Development (CERAD) Federal University of Technology, Akure (FUTA), Ondo State, Nigeria [FUTA/ CRD/ DIR/O7/12]
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Field experiments were conducted at the Agricultural Engineering Experimental Farm of The Federal University of Technology, Akure, during 2006/2007 and 2007/2008 seasons to investigate the response of cassava under drip irrigation. The experiment was laid out in a randomised complete block design (RCBD) with three replications. The treatments were based on four different water regimes; with T-100 receiving 100% available water (AW), T-50 and T-25 receiving 50% and 25% of AW and To with zero irrigation (control treatment). Disease free stems of the cassava cultivar TMS 91934 were planted at a spacing of 1 m by 1 m. The results indicated that T-100 full treatment produced the highest average total dry matter yield of 49.12 and 37.62 t/ha in 2006/07 and 2007/08 cropping seasons, respectively. However, the average total dry matter production in T-50, T-25, and T-0 showed significant differences in their values. Low total dry matter yields of 7.12 and 5.92 t/ha, respectively, were associated with T-0 for the two cropping seasons. The total water use of 1491.75 and 1701.13 mm was recorded for T-100, while total water use of 729.00 and 651.13 mm were obtained for T-0 in the two cropping seasons. The water use efficiency determined for the two cropping seasons ranged between 7.38 kg/ha and 32.93 kg/ha. The percentages of total water applied from total water use for T-100 were 51.11% and 61.72%, while 14.83% and 17.85% were recorded for T-25 for 2006/07 and 2007/08 cropping seasons, respectively.
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