BF, Dept. of Agronomy, Lj. (BFAGR)
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Spremembe nekaterih parametrov rodovitnosti tal po dveh rotacijah petletnega njivskega kolobarja : diplomska naloga = The changes of some parameters of the soil fertility after two cycles of the five-years field crop rotation : graduation thesisŠesek, PredragNa poskusnem polju v Vnanjih goricah pri Ljubljani je bil 1982 zasnovan stacionarni poljski poskus z namenom, da bi proučili spremembe nekaterih parametrov rodovitnosti tal. Raziskava, ki se je ... končala leta 1991, je vključevala dve rotaciji petletnega kolobarja (krompir, ozimna pšenica, koruza, jari ječmen, TDM)v 6 variantah gnojenja: kontrola (=brez mineralnih gnojil), PK, N1PK, N2PK, N3PK, N4PK. Po 10 letih trajanja poskusa smo proučili spremembe vrednosti teh parametrov in vsebnosti organske gmote na osnovnih parcelah. Rezultati so pokazali, da so bile zaloge skupnega dušika v tleh v glavnem sorazmerne količini z gnojili apliciranega dušika. Vse variante so imele ozko C-N razmerje. Povprečna vsebnost organske snovi, dostopnega K in pH vrednost so se po desetih letih zmanjšale pri vseh variantah gnojenja. Vsebnost P je ostala približno enaka pri vseh gnojilnih variantah, le pri kontrole se je zmanjšala. V 10 letnih trendih so imeli pridelki krompirja in pšenice v vseh gnojilnih variantah signifikantno negativne trende, pri koruzi pa pozitivne. 10 letni trendi pridelkov vseh gnojilnih variant v povpečju vseh poljščin so bili statistično signifikantno negativni v primerjavi z izhodiščem na začetku izvajanja poskusa.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [P. Šesek], 1994Language - slovenianCOBISS.SI-ID - 2100089
Author
Šesek, Predrag
Other authors
Tajnšek, Anton
Topics
rodovitnost tal |
gnojenje |
kolobar |
pridelek |
kulturne rastline |
krompir |
ozimna pšenica |
koruza |
jari ječmen |
poljski poskusi |
poljski poskusi
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BF, Dept. of Agronomy, Lj. |
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AO D 0000001550 0000000001 AO D 1550 01 |
available - outside loan, loan period: 1 months
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AO D 0000001550 AO D 1550 |
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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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Šesek, Predrag | 15454 |
Tajnšek, Anton | 01447 |
Source: Personal bibliographies
and: SICRIS
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