NOTA
Adubação corretiva com fósforo e potássio em um solo de baixa fertilidade1
Correction of a low fertility soil with phosphorus and potassium
Heitor Cantarella; Bernardo Van Raij2
SUMMARY
Band applications of P and K were not adequate for corn in an low fertility soil with a cambic B horizon of Itararé to reach satisfactory yields. Substancial increases in production were obtained by broadcast applications of potassium and phosphorus combined with band application, even under the conditions of high acidity of the experiment (pH 4.9). The rock phosphate patos-de-minas was an effective P source for broadcast application, although less efficient than triple superphosphate.
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Recebido para publicação em 18 de setembro de 1978.
Datas de Publicação
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Publicação nesta coleção
15 Dez 2007 -
Data do Fascículo
1979