Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/24053

Title: Spinach production in cocopeat: Effects of soil block number and the number of emitters on plant growth, nitrate concentration, and antioxidant activity
Authors: Machado, RMA
Alves-Pereira, I
Ferreira, Rui MA
Editors: Bavec, Martina
Bavec, Franc
Mlakar, Silva
Keywords: Spinacia oleracea
soilless culture systems
cocopeat
yield
nitrate
Issue Date: 2017
Publisher: University of Maribor Press
Citation: Machado, Rui M.A., Alves-Pereira Isabel, Ferreira, Rui (2017) Spinach production in cocopeat: Effects of soil block number and the number of emitters on plant growth, nitrate concentration, and antioxidant activity. In: Martina Bavec, Franc Bavec, Silva Grobelnik Mlakar (ed), Book of Abstracts VII South-Eastern Europe Syposium on Vegetables & Potatoes, 1sd ed. University of Maribor Press, Maribor, Slovenia, pp 60. ISBN 978-961-286-044-8 (Paperback), ISBN 978-961-286-045-5 (PDF), DOI: https://doi.org/10.18690/978-961-286-045-5.
Abstract: Currently, the interest in the use of coir dust (or cocopeat) as a growing medium has increased. The aim of this research was to evaluate the effects of plant density and the number of emitters per Styrofoam box on plant growth, nitrate (NO3-) concentration and antioxidant activity in spinach (Spinacia oleracea L. cv. Manatee) cultivated in cocopeat. The experiment was carried out with four treatments, including two plant densities (160 and 280 plants/m2) and two number of emitters per Styrofoam box (4 and 8 emitters). The crop was irrigated and fertigated daily with a complete nutrient solution, in which NO3-/NH4+ ratio decreased through the crop cycle. Shoot dry weight was not affected by plant density or emitter number. However, the yield (kg m-2) increased significantly with plant density and with the number of the emitters by Styrofoam box. The yield in treatment 280 plants/m2 and 8 emitters reached 5.4 kg m-2. Leaf-blade and petiole NO3- concentration was not affected by plant density, number of emitters and the interaction between treatments. Leafblade and petiole NO3- concentration was low, ranged from 0.49 to 0.56 and 0.94 to 0.96 NO3- mg g-1 fresh weight, respectively. These results indicate that cocopeat is a very suitable growing medium for spinach production.
URI: https://doi.org/10.18690/978-961-286-045-5
http://hdl.handle.net/10174/24053
ISBN: 978-961-286-044-8
978-961-286-045-5
Type: article
Appears in Collections:ICAAM - Artigos em Livros de Actas/Proceedings

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