2026-04-14T04:41:33Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.12327/23212025-10-22T11:28:04Zcom_2072_4428com_2072_4427col_2072_487898
RECERCAT
author
Narváez, L.
author
Cáceres, R.
author
Marfà, O.
other
Producció Animal
group
Sostenibilitat en Biosistemes
2025-10-22T11:28:04Z
2025-10-22T11:28:04Z
2013-07-15
Narvaez, L., R. Caceres, and O. Marfà. 2013. “Effect of Different Fertilization Strategies on Nitrogen Balance in an Outdoor Potted Crop of Osteospermum Ecklonis (DC.) Norl. ‘Purple Red’ under Mediterranean Climate Conditions”. Spanish Journal of Agricultural Research 11 (3): 833-841. doi: 10.5424/sjar/2013113-3764.
1695-971X
http://hdl.handle.net/20.500.12327/2321
https://doi.org/10.5424/sjar/2013113-3764
Fertilization management and meteorological conditions can affect leachate composition and the balance of nitrogen
(N) added during the cultivation of ornamentals. The main objectives of this study were to estimate the N balance
components and to establish relationships between the N concentration in leachates and meteorological variables when
different fertilization strategies are used in an outdoor potted crop of Osteospermum ecklonis (DC.) Norl. ‘Purple
Red’. Two fertilizations strategies, i.e. continuous fertigation (NS) and incorporated controlled-release fertilizer (CRF),
were applied to the crop. The treatments were two NS doses (NO3 –-N concentration in each NS, NS-A: 154 mg L–1 and
NS-B: 112 mg L–1) and two CRF doses (CRF-C: 5.0 g L–1 of substrate and CRF-D: 2.5 g L–1 of substrate). The N loss
by leaching was higher in the NS-A treatment than in the other ones (1.1 g pot–1, 11% of total available N). The amount
of N accumulated by the plants was higher in the NS treatments than in the CRF treatments (average 2.5 g pot–1, 29.5%
of total available N). However the efficiency of use of N was the greatest in the CRF-D treatment (23.9 g dry matter
produced g–1 N supplied). About 50% of the total available N was measured in the substrate in all treatments (average
3.8 g pot–1). The concentration of N in the leachates for the two CRF treatments did not correlate with the substrate
temperature or precipitation. The N released from the CRF matched the nutritional requirements of the plants better
than the N applied by continuous fertigation.
eng
Attribution 4.0 International
Effect of different fertilization strategies on nitrogen balance in an outdoor potted crop of Osteospermum ecklonis (DC.) Norl. ‘Purple Red’ under Mediterranean climate conditions
info:eu-repo/semantics/article