THE DIFFERENCE IN THE EFFECT OF FERTILIZER COMBINATIONS ON THE GROWTH AND YIELD INDICATORS OF MAIZE ZEA MAYS L.
2022
M. Jumah | W. Al-Joboory
A field experiment was conducted in Anbar governorate, northwest city of Ramadi in Zankora district during the autumn season of 2019. Seven fertilizer treatments were included (T1 = recommended application of chemical fertilizer, T2 = 50% of recommended + effective micro -organisms, T3= 25% of the recommendation + effective micro-organisms, T4= 50% the recommended + Humic acid, T5= 25% recommended + Humic acid, T6= combination of 50% recommended + micro-organisms+ Humic acid, and finally T7= 25% of recommended + micro-organisms + Humic acid). The experiment was applied using randomized complete block design (R.C.B.D). obtained results presented the possibility of using micro-organism fertilizers and Humic acid as an alternative of chemical ones when the amount of chemical fertilizer was reduced by 50%, where, T6 treatment almost gave the same values of growth indicators and production in compression with fully amount applied as mineral fertilizer (T1). Treatment of T6 was significantly superior to all treatments except T1, by showing values of 264.87 cm, 5746 cm2, 373.9 g. plant-1, 84.92 g, 10.55 Mg ha-1 of plant height, leaf area, dry weight, 300 grain weight and total grain weight respectively.
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