Nutritional survey of vineyards in the coastal zone of the VIII Region of Chile

Jorge Etchevers B.1, Ricardo Merino H.2, Iván Vidal P.2, Eduardo Riquelme F.2, Fernando Llanos R.2

A nutritional survey was done on 50 vineyards, cv. Pais and over 40 years oid, growing in the coastal area of the provinces of Ñuble and Concepción. Content of N, P, K, Ca, Mg, Na, Mn and Zn was mea su red in leaf blades, and N-NO3- and K, in petioles. Results indicated deficiency of N, K and B in 85% of thesampled vineyards, and Zn deficiency in 14% of the samples. Other elements were aboye critical Ievels.

1 Departamento de Agronomía, U. de Concepción, Actualmente: Colegio de Postgraduados, Chapingo, México.
2 Departamento de Agronomía, U. de Concepción, Casilla 537, Chillán, Chile.