TIMING OF MACROELEMENT SPRAYS FOR OPTIMUM ABSORPTION BY CITRUS

Six percent solutions of 12-6-6 liquid fertilizer were applied in the morning, at noon, and in the evening to 3-yearold 'Hamlin' and 'Valencia' orange, Citrus sinensis (L.) Osbeck, trees on sour orange, C. aurantium L., and Volkamer lemon, C. limon Burm. f., rootstock. The trees were in pots in the open. Leaf samples were taken immediately before spraying and 7 days after spraying and analyzed for N, P and K. The experiment was repeated 3 times. Rain within 12 hours of application sharply reduced uptake of the applied material. The best application time under the semi-tropical conditions of the experiment (36°C day temperature, 23°C night temperature, relative humidity 30 to 100%) was evening. ----- Soluciones de seis por ciento de abono liquido 12-6-6 fueron applicados por la manana, al mediodta y al anochecer a arboles de naranja (Citrus sinensis (L.) Osbeck) 'Hamlin' y 'Valencia' injertados en patrones de naranja agria (C. aurantium L.) y limon Volkamer (C. limon Burm. f.), Se mantuvo los arboles in cestos al aire libre. Se tom6 muestras de hojas imediatemente antes y siete dras despues de la aplicaci6n foliar para analisis de nitrogeno, f6sforo y potasio. EI experimento fue repetido tres veces. Uuvia dentro de doce horas de aplicaci6n redujo la absorci6n de los nutrientes aplicados. Bajo las condiciones semi-tropicales de experimento (36°C durante el dia, 23°C de noche) el mejor tiempo para aplicar la materia era al anochecer.


Keywords:
Issue Date:
Sep 08 1985
Publication Type:
Conference Paper/ Presentation
Language:
English
Total Pages:
4




 Record created 2017-08-04, last modified 2017-08-29

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