NOTA
Adubação de soqueira de cana-de-açúcar1 1 Trabalho apresentado na XXVI Reunião Anual da SBPC, em Recife, PE, em julho de 1974.
Ratoon fertilization in sugar cane
José Gomes da Silva; Eduardo Abramides2 2 Com bolsa de suplementação do C.N.Pq.
SUMMARY
A ratoon fertilization field experiment was set up in a latosol of Pirassununga country, State of São Paulo, Brazil.
Sugar cane variety was CB 49/260, at the third harvest.
Results were statistically significant and provided the following conclusions:
a) The deep application (with subsoilage) of 206.6 kg/ha of the fertilizers mixture formula (07-04-12) for the "soqueiras" fertilization provided a highly significant production increase of 22.83 t/ha, or 28% as related to the check ("A"). Economically speaking, this increase means an additional net income of Cr$ 387,51 per ha.
b) The production increase due to the deep subsoiling was of 17.92 t/ha (highly significant) and 7.50 t/ha (not significant) respectively with and without fertilization.
c) The production increase due to the added higher fertilization rate was of 15.33 t/ha (highly significant) and 4.91 t/ha (not significant) respectively with deep application (subsoilage) and surface application.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
Recebido pra publicação em 22 de setembro de 1975.
Datas de Publicação
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Publicação nesta coleção
11 Mar 2009 -
Data do Fascículo
1976
