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Vpliv načinov gnojenja z dušikom na pridelek koruze (Zea mays L.) hibrida dea v Jabljah : diplomska naloga = The effects of fertiliazing methods using mineral nitrogen fertilizers on maize (Zea mays L.) hybrid dea crop in Jablje : graduation thesisHardi, ZvonkoV Jabljah smo v letu 1998 postavili gnojilni poskus s koruzo (Zea mays L.) hibrida Dea. V poskusu smo ugotavljali optimalne obroke dušika pri istem odmerku dodanega mineralnega dušika (200 kg ... N/ha).Poskus je bil zasnovan po metodi naključnih blokov s tremi ponovitvami . V okviru vsake ponovitve smo postavili 4 različne variante gnojenja: N1=200 kg N/ha v obliki uree ob setvi, N2=200 kg N/ha v obliki KAN-a ob dognojevanju v fazi 6-8 listov, N3=100kg N/ha v obliki uree ob setvi + 100 kg N/ha v obliki KAN-a ob dognojevanju v fazi 6-8 listov, N4= kontola, brez dodanega mineralnega dušika. Preučevali smo vpliv odmerjanja obrokov dušika na pridelek suhega zrnja, vlažnost zrnja ob spravilu, maso storžev in razmerja zrnje: klasinec. Posebej smo ovrednotili gospodarnost uporabe minimalnih gnojil po variantah gnojenja. Na negnojenih parcelicah (N4) je bil pridelek suhega zrnja 4008 kg/ha. Gnojenje z 200 kg N/ha ob setvi (N1) je dalo 9571 kg sušine zrnja/ha. Gnojenje z 200 kg N/ha ob fazi 6-8 listov (N2) je dalo za približno 250 kg večji pridelek suhega zrnja kot N1. Delitev odmerka dušika na dva obroka (100 kg N/ha ob setvi + 100 kg N/ha ob dognojevanju v fazi6-8 listov) se je izkazala kot najbolj primerna varianta tako po pridelku (10327 kg/ha) kot po gospodarnosti gnojenja (64896 SIT/ha) v primerjavi z N2 varianto (58605 SIT/ha) in N1 varianto (55729 SIT/ha). Pridelek storžev se je na delitev dušika odzival podobno kot pridelek suhega zrnja. Pri vlažnosti zrnja ob spravilu in razmerju zrnje: klasinec ni bilo statistično značilnih razlik.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [Z. Hardi], 1999Language - slovenianCOBISS.SI-ID - 2584953
Author
Hardi, Zvonko
Other authors
Tajnšek, Anton
Topics
kulturne rastline |
koruza |
Zea mays L. |
gnojenje |
dognojevanje |
pridelek |
gospodarnost |
gospodarnost
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Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Agronomy, Ljubljana | Ljubljana | BFAGR |
outside loan 1 cop.
reading room 1 cop. |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Tajnšek, Anton | 01447 |
Source: Personal bibliographies
and: SICRIS
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