Effect of zero tillage system, seeding rate and row spacing on growth, yield and its components of bread wheat in moderate rainfall area in ninevah province.
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Abdulsattar A. Alrijabo, Saad A. Asmair, Hisham Abdulrahman Ahmed. (30/11/2014). Effect of zero tillage system, seeding rate and row spacing on growth, yield and its components of bread wheat in moderate rainfall area in ninevah province. Journal of Kirkuk University for Agricultural Sciences, 5(1), pp. 1-15.
A RCBD factorial experiment with 3 factors in Split Split Plot design was conducted in 2011-2012 agricultural season at Telkief location in rainfed field (183.5 mm–very drought season) to evaluate the effect of tillage systems (Conventional Tillage and Zero-Tillage) with three row spacing level (14.7, 29.4 and 14.7 + 29.4 cm) and two seeding rate (80 and 100 kg/ hectare) on growth, yield and its components of Bread wheat (cv. Cham-6). ZT signifi-cantly decrease fuel consumption and weeds/m2 and significantly increase plant height, flag leaf area, No. of tillers and spikes /m2, grains and straw yield / m2 comparing with CT planting method. 100kg/ha seeding rate and 14.7cm row spacing factors increased significantly No. of plants, tillers and spikes/m2, grains and straw yield/m2 comparing with 80kg/ha and 29.4cm row spacing respectively. The highly significant value in grain and straw yields were in the triple interaction between ZT planting method, 100kg/ha seeding rate and 14.7 cm row spacing, this results due to the highly seeding rate in 14.7 row spacing in combined with the highly seeding rate.