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Environmental Systems Research
Fig. 3 | Environmental Systems Research

Fig. 3

From: The effect of phosphorus and nitrogen fertilizers on grain yield, nutrient uptake and use efficiency of two maize (Zea mays L.) varieties under rain fed condition on Haplic Lixisol in the forest-savannah transition zone of Ghana

Fig. 3

Effect of nitrogen and phosphorus fertilizer on Obatanpa maize dry matter accumulation 55 days after sowing (DAS) at Ejura during the major and minor season, 2008. N1, N2, N3 and N4 indicate 0, 40, 80 and 120 kg N ha−1; P1, P2 and P3 indicate 0, 30 and 60 kg P ha−1

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