Nutrient Removal, Fertilization Needs and Yields of Protea Plants Cultivated in Subtropical Conditions

Autor: María M. Hernández, Marino Fernández-Falcón, Carlos Enrique Álvarez
Rok vydání: 2008
Předmět:
Zdroj: Journal of Plant Nutrition. 31:1018-1032
ISSN: 1532-4087
0190-4167
DOI: 10.1080/01904160802097300
Popis: A study of nutrient removal was carried out in commercial protea plantations of each of the cultivars ‘Scarlett Ribbon,’ ‘High Gold,’ ‘Veldfire,’ and ‘Sunrise’ of Leucospermum cordifolium, and of the species L. patersonii,located in a subtropical region (La Palma, Canarian Archipelago). Flowering stems of optimal commercial quality were taken from each of the mentioned cultivars and species, once a year (2003 and 2004) at harvest time (January to April), and the different organs were analyzed separately. Flowering stems of the cultivars ‘High Gold’ and ‘Veldfire’ presented the highest contents of most studied nutrients, whereas the opposite was observed in ‘Scarlett Ribbon’ and L. patersonii. Mean yields of flowering stems varied very much among cultivars, and the highest ones were those of ‘High Gold’ and ‘Scarlett Ribbon’. The cultivar ‘High Gold’ removed the highest quantities of studied nutrients, and the contrary was observed in L. patersonii for most of them. Suitable rates of nitrogen (N):...
Databáze: OpenAIRE
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