Análisis químico del extracto peciolar para evaluar el estado nutricional en la vid
AUTOR(ES)
Pino, Paulina, Callejas, Rodrigo, Razeto, Bruno, Reginato, Gabino
FONTE
Pesquisa Agropecuária Brasileira
DATA DE PUBLICAÇÃO
2012-01
RESUMO
The objective of this work was to evaluate the relationship between N, P and K concentration in petiole extract, blades and roots, to determine the nutritional status in grapevine. The experiment was done between December 2006 and February 2007. Three fertilization trials with N, P2O5 and K2O in one-year-old Vitis vinifera 'Red Globe' plants, grown in containers, were established. Nitrate, phosphate and potassium concentration were evaluated in the petiole extract, and nitrogen, phosphorus and potassium were determined in blades and roots. Petiole extract analysis was more sensitive than blade and root analysis to determine nitrate and nitrogen status. Meanwhile, blade analysis showed better plant response to fertilization with phosphorus and potassium. Petiole extract analysis can indicate the antagonism between nutrients under high doses of fertilization.
Documentos Relacionados
- Criterios e indicadores para evaluar la calidad del análisis documental de contenido
- Aplicabilidad del análisis por causa múltiple de muerte para el cáncer cervicouterino: la experiencia en México
- Análisis de la capacidad del turismo en el desarrollo económico regional: el caso de Inhotim y Brumadinho
- Del sacrificio impuesto al sacrificio voluntario. Una contribución para el análisis de la violencia y la muerte en la Guerra de Malvinas
- El nacimiento en Cuba: análisis de la experiencia del parto medicalizado desde una perspectiva antropológica