Water use, growth, and yield of drip irrigated cassava in a humid tropical environment
2011
Odubanjo, O.O.,Federal Univ. of Technology, Akure (Nigeria). Dept. of Agricultural Engineering | Olufayo, A.A.,Federal Univ. of Technology, Akure (Nigeria). Dept. of Agricultural Engineering | Oguntunde, P.G.,Federal Univ. of Technology, Akure (Nigeria). Dept. of Agricultural Engineering
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 with three replications. The treatments were based on four different water regimes as follows: T100 receiving 100% available water (AW), T50 and T25 receiving 50% and 25% of AW, and T0 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. Our results presented for the both studied years, respectively, indicated that T100 produced the highest average total dry matter yields (49.12 and 37.62 t/ha). However, the average total dry matter production in T50, T25, and T0 showed significant differences in their values. Low total dry matter yields of 7.12 and 5.92 t/ha were associated with T0. The total water use of 1,491.75 and 1,701.13 mm was recorded for T100, while total water use of 729.00 and 651.13 mm was obtained for T0. The water use efficiency ranged between 7.38 kg/ha and 32.93 kg/ha. The percentages of total water applied from total water use for T100 were 51.11% and 61.72%, while 14.83% and 17.85% were recorded for T25.
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