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Correction of a low fertility soil with phosphorus and potassium fertilizer



Correction of a low fertility soil with phosphorus and potassium fertilizer



Bragantia 38(1): XXV-XXVIII



In 1976-7, maize Hmd 7974 was sown for use in a fertilizer trial on low fertility soil. 10 kg N, 60 kg P2O5 and 60 kg K2O/ha were applied at sowing with micronutrients (B, Co, Mn, Zn and Mo). Additional fertilizers were broadcast and were: additional K, rock phosphate, rock phosphate + K, superphosphate, superphosphate + K, and superphosphate + K - micronutrients. Grain yield with micronutrients alone was 508 kg/ha and this increased to 1.612 t/ha with basal NPK.

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Accession: 000848724

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