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Effect of different N forms and concentrations on olive seedlings growth

AuthorsGarcía Fernández, José Luis ; Liñán Benjumea. Juana; Sarmiento Solís, Rafael ; Troncoso de Arce, Antonio
Issue DateApr-1999
PublisherInternational Society for Horticultural Science
CitationActa Horticulturae 474: 323-328 (1999)
AbstractThe effect of different N forms on the growth of olive seedlings in the greenhouse was studied. KNO3, NH4NO3 and (NH4)2SO4 at different concentrations, as well as two types of substrates, sterile sand and a sand-peat mixture (1:1), were tested. In sterile sand, with N concentrations higher than 5 mM, serious damage was observed in the plants, so concentrations of 3, 4 and 5 mM of N were used for each N salt. N-NH4 treatments resulted in a significantly higher growth compared to KNO3 treatment. Using the peat-sand substrate and the N concentrations described above, seedling growth was higher than in sterile sand, but no differences among treatments were observed. However, the peat:sand substrate allowed application of higher N concentrations and using NH4NO3 differences in growth were obtained, reaching the best results with 14–28 mM.
Description5 páginas, 3 figuras, 1 tabla, 12 referencias.-- III International Symposium on Olive Growing, celebrado en septiembre 1997, en Chania, Crete, Greece.
Appears in Collections:(IRNAS) Artículos
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