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Micro-Basin Tillage for Grain Sorghum Production in Semiarid Areas of Northern Ethiopia

^a Mekelle Agricultural Research Center, P.O. Box 492, Mekelle, Ethiopia
^b Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE 68583-0915
^c Alemaya Univ., P.O. Box 138, Dire Dawa, Ethiopia

View larger version (23K): [in a new window]   Fig. 1. Daily precipitation beginning 1 June at Abergelle in northern Ethiopia in 2003 and 2004.

View larger version (69K): [in a new window]   Fig. 2. Soil water volume for 0 to 90 cm as affected by tillage and planting treatments in (a) 2003 and (b) 2004 at Abergelle in northern Ethiopia. Y-bars equal LSD0.05 appropriate for that sampling date. Flat plant = planting with a flat soil surface. TR = tied-ridging; WAP = weeks after planting; IF and OR = in-furrow and on-ridge planting, respectively. Shilshalo = a traditional ridging practice conducted 4 wk after planting.

View larger version (31K): [in a new window]   Fig. 3. Sorghum plant height as affected by tillage treatments in 2003 (a) and 2004 (b) at Abergelle in northern Ethiopia. Y-bars equal LSD0.05. Flat plant = planting with a flat soil surface. TR = tied-ridging; WAP = weeks after planting; IF and OR = in-furrow and on-ridge planting, respectively. Shilshalo = a traditional ridging practice conducted 4 wk after planting.