Effect of different N forms and concentrations on olive seedlings growth
1999
García Fernández, José Luis | Liñán Benjumea, Juana | Sarmiento Solís, Rafael | Troncoso de Arce, Antonio | Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
5 páginas, 3 figuras, 1 tabla, 12 referencias.-- III International Symposium on Olive Growing, celebrado en septiembre 1997, en Chania, Crete, Greece.
Show more [+] Less [-]The 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.
Show more [+] Less [-]This research was supported by Comisión Interministerial de Ciencia y Tecnología, projecl AGF 94-1071-C05-04.
Show more [+] Less [-]Peer reviewed
Show more [+] Less [-]AGROVOC Keywords
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