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Vpliv hidroponskih sistemov gojenja na pridelek in vsebnost NO3- pri gojenju motovilca (Valerianella olitoria L.) : diplomska naloga = The influence of hydroponics growing system on the yield and the contain of NO3- by growing corn salad (Valerianella olitoria L.) : graduation thesis
Zupančič, Alenka, 1969-
V plastenjaku na poskusnem polju Biotehmiške fakultete v Ljubljani smo v jesenskem času preizkušali štiri sisteme za gojenje motovilca. To so: klasičen način pridelovanja, NFT-sistem v kanalih, PPH ...in pa sistem tankih plasti. Vključena sta bila cv. 'ljubljanski' in cv. 'holandski'. Povprečna temperatura je bila 5°C, rastna doba pa 9 tednov. Uporabili smo Sonnenveltovo hranilno raztopino. Cv. 'ljubljanski' je v PPH zaradi slabe podlage propadel. Opazovali smo kaljivost, rast - dolžino listov, število rastlin na m2, maso svežih in zračno suhih rastlin ter vsebnost nitratov. Najboljšo kaljivost in največje pridelke smo dobili pri cv. 'holandski' v klasičnem gojenju v zemlji. Motovilec v zemlji je edini presegel dovoljeno količino nitratov 2500 mg/kg sveže mase. Vsebnost nitratov je bila pri cv. 'holandski' v tanki plasti 1503.5 mg/kg sveže mase, v NFT kanalih 1996,4 mg/kg sveže mase in pri klasičnem načinu pridelovanja v zemlji 2756,8 mg/kg sveže mase.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [A. Zupančič], 1994
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