Naslov
Lamb´s Lettuce Mineral Content in Floating System

Autori
Radman, Sanja ; Toth, Nina ; Fabek, Sanja ; Čoga, Lepomir ; Žutić, Ivanka ; Benko, Božidar

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts 6th Balkan Symposium on Vegetables and Potatoes / Organizing Committee of 6th Balkan Symposium on Vegetables and Potatoes - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2014, 117-117

ISBN
978-953-7878-20-7

Skup
6th Balkan Symposium on Vegetables and Potatoes

Mjesto i datum
Zagreb, Hrvatska, 29.09.2014. - 02.10.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Valerianella locusta; nutrient solution; nitrate content; calcium; phosphorus

Sažetak
In recent times lamb´s lettuce become a very interesting leafy vegetables to consumers because of its rich mineral and chemical composition. Due to a market demand for this valuable leafy vegetable throughout year, it is necessary to research other production technologies (such as floating system) beside conventional one. The aim of this research was to determine the influence of two different nutrient solutions on yield, dry matter, mineral and nitrate content of lamb´s lettuce. The experiment was laid out according to the randomized block scheme with three replications in floating hydroponic system in unheated greenhouse. In the first pool nutrient solution was prepared according to Pimpini (2005) and the second pool according to Johnson (1957) with a smaller concentration of potassium nitrate. Sowing of lamb´s lettuce, cultivar Juwabel was conducted on March 17 in 2011 in polystyrene trays, filled with inert substrate. Nutrient solution prepared according to Johnson resulted with higher values of yield (1.26 kg m- 2), dry matter (12.95%), phosphorus [47.92 mg 100 g-1of fresh weight (fw)], magnesium (53.1 mg 100 g-1 fw) and calcium (116.6 mg 100 g-1 fw). Also, smaller values of potentially harmful nitrate were measured (1425 mg kg-1 NO3 of fw) compared to lamb´s lettuce grown in Pimpini´s nutrient solution (1881 mg kg-1 NO3 of fw). Due to higher yield, dry matter and concentrations of the most observed minerals as well as smaller amounts of nitrate nutrient solution according to Johnson can be proposed for growing of lamb´s lettuce in floating system.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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