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Variabilnost v vsebnosti cinka v vzorcih različnih vrst trav in črne detelje = Variability in zinc content in different grass species and red cloverOrešnik, Andrej, 1943-2016 ; Lavrenčič, Andrej, 1965- ; Stopar, Jože, 1966-V letu 1997 smo na različnih parcelah iste površine v štirih košnjah in v različnih razvojnih fazah rastlin zbrali po 10 vzorcev črne detelje (Trifolium pratense) in mnogocvetne ljuljke (Lolium ... multiflorum) ter po 8 vzorcev mačjega repa (Phleum pratense), trpežne ljuljke (Lolium perenne), travniške bilnice (Festuca pratensis), rdeče bilnice (Festuca rubra) in pasje trave (Dactylis glomerata). V vzorcu zemlje iz poskusne površine smo izmerili pH vrednost 7,2 in 75,8 mg cinka kg-1 SS. V povprečju so trave vsebovale 20,36 mg, črna detelja pa 26,43 mg cinka kg-1 SS. Najmanj cinka je bilo v suhi snovi vzorcev rdeče bilnice (16,92 mg kg-1). V trpežni ljulki ga je bilo 18,13 mg, v travniški bilnici 18,66 mg in v pasji travi 20,84 mg v kg suhe snovi. Največ cinka so v suhi snovi vsebovali vzorci mačjega repa (23,66 mg kg-1) in mnogocvetne ljuljke (23,97 mg kg-1). Razlike med travami so bile statistično značilne. V prvi košnji so rastline v fazi bilčenja vsebovale 22,44 mg, med latenjem 19,57 mg in cvetenjem 16,47 mg cinka kg-1. Razlike so statistično značilne. V koncentraciji cinka v suhi snovi vseh zbranih vzorcev prve košnje in vzorcev druge košnje ni bilo statistično značilnih razlik (19,49 mg in 20,22 mg kg-1). V vzorcih tretje košnje je bilo statistično značilno več cinka (24,29 mg kg-1 SS) v primerjavi s prvo in drugo košnjo, v vzorcih jesenske košnje pa največ (26,91 mg kg-1 SS). V vzorcih mačjega repa, trpežne ljuljke in mnogocvetne ljuljke so bile razlike v vsebnosti cinka med vzorci prve košnje in jesenske košnje zelo velike (+78,4%, +68,0% in +58,4%).Source: Zbornik Biotehniške fakultete Univerze v Ljubljani. Kmetijstvo. Zootehnika = Research reports [of the] Biotechnical Faculty University of Ljubljana. Agricultural issue. Zootechnica. - ISSN 1408-3434 (Letn. 76, št. 2, nov. 2000, str. 75-85)Type of material - article, component partPublish date - 2000Language - slovenianCOBISS.SI-ID - 1068936
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Database name | Field | Year |
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Orešnik, Andrej, 1943-2016 | 00486 |
Lavrenčič, Andrej, 1965- | 11889 |
Stopar, Jože, 1966- | 15468 |
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