European Journal of Horticultural Science
Alternative Substrates and Fertilization Routine Relationships for Bedding Pot Plants: Impatiens wallerana.
Authors
J. Thibaud1) ; T. Mc. Loughlin1) ; A. Pagani1) ; R. Lavado2) ; A. Di Benedetto1, 3)1)Facultad de Agronomía (UBA), Cátedra de Floricultura, Argentina; 2)INBA (CONICET/FAUBA) and Facultad de Agronomía (UBA), Cátedra de Fertilidad y Fertilizantes, Argentine; 3) Facultad de Ciencias Agrarias (UNMP) Balcarce, Provincia de Buenos Aires, Argentina
Summary
This study was carried out searching for alternative substrates to traditional peat based on river waste and Sphagnum and Carex peat from Argentinean peat-lands and used to grow Impatiens wallerana beddingplant. The aim of this study was i) to characterizephysical and chemical effects from seven growing media on I. wallerana plants grown under different fertilization rates and ii) to describe the physiological mechanismsin plants, involved in the use of such substrates. Particlestability was lower for the six alternative substratescompared to the Canadian peat-base control substrate. However, with a high fertilization dose it is possible to reach non significant differences in plant growthcompared to the control substrate. It is suggested, for futureresearch, that nitrogen signalling associated to cytokininsynthesis by roots is involved.
Download full-text version (PDF 762783 bytes)
Keywords
ornamental plant; peat; river waste; nitrogen
