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SYNCHRONIZATION OF NITROGEN APPLICATION WITH GROWTH STAGES OF MAIZE (Pages : 53 - 55)

M. R. A. MOLLAH, M. ASADUZZAMAN, M. A. AKTHER AND K .M. KHALEQUZZAMAN

The experiment was conducted to verify the effect of nitrogen (N) application at different growth stages of maize at Multilocation Testing (MLT) site sherpur under On Farm Research Division, BARI, Bogra during 2005-06. Three urea application treatments were T1 (1/3 as basal + 1/3 at 8 leaves stage + 1/3 at tasseling stage), T 2 (30 % as basal + 70% at 8 leaves stage) and T 3 (50% as basal and 50% at 8 leaves stage). Plant height, no of filled grains/cob, 100 seed weight, grain yield and straw yield were highest in T2 compared to others. On the other hand, the highest no of cob was found in T1 and unfilled grain/cob in T3. There was no significant difference for grain yield among the treatments: But the comparatively higher grain yield (8.27 t/ha) was obtained from treatment T2. The present results clearly indicate that in hybrid maize urea should be applied either 30% or 50% as basal and rest 70% or 50% at 8 leaves stage instead of 1/3 as basal +1/3 at 8 leaves stage + 1/3 at tasseling stage. Download


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