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To evaluate the effects of various application rates (0 to 80 Mg/ha) of cattle manure and chicken manure on lettuce yield, an experiment was carried out at the Organic Garden of the Escola Superior de Agricultura de Mossoró in Rio Grande do Norte, Brazil, from 2 October to 23 November 1995. The...

Porto, V. C. N.; Negreiros, M. Z. de; Bezerra Neto, F.; Nogueira, I. C. C.
Escola Superior de Agricultura de Mossoró, Ministério da Educaçăo, Rio Grande do Norte, Brazil
Caatinga, 1999, 12, 1/2, pp 7-11