Fertilizer and Genotype Effects on Maize Production on Two Soils in the Northern Region of Ghana

摘要: Soils in the Guinea Savanna agro-ecological zone of Ghana are depleted major nutrients by continuous cropping and residue removal, resulting low maize yields. While many studies have assessed fertilizer requirements for maize, most did not account role soil type genotype. A study was conducted on Plinthosol Lixisol Tolon district Northern Region to assess genotype effects productivity. Two genotypes (i.e. Obatanpa -110 days maturity) (Dodzie - 75 were compared at three application rates 0-0-0, 60-15-35 90-25-50 kg ha -1 N, P K) a randomized complete block design using four replications, with allocated main plots levels subplots. characterized, revealing very total N available concentrations top layers. Grain yield significantly affected genotype, irrespective type. The longer-duration (Obatanpa) tended out short duration (Dodzie), generally outperformed Dodzie all parameters except harvest index Plinthosol. Inorganic fertilizers (P<0.001) increased over control both soils, increases 84 90% K, respectively. Genotype interaction highly significant grain soils. We conclude that farmers Savannah need supply enhance yields prevailing