THE COMPARISON OF SOME SOMMERSOWN CATCH CROPS IN FIELD ROTATION WITH SUGAR BEET (Beta vulgaris L.)

V poljskem poskusu, ki smo ga izvedli v letih 2005 in 2006 v Lipi pri Murski Soboti, smo ugotavljali vpliv različnih dosevkov in časa zaoravanja na vsebnost mineralnega dušika v tleh (Nmin) pred zimo in spomladi ob setvi sladkorne pese ter poznejšega vpliva na pridelek sladkorne pese. Poskus je bil izveden po split-plot metodi v naključnih blokih s štirimi ponovitvami. Na glavnih parcelah smo obravnavali dosevke: ob setvi s 60 kg N gnojena mnogocvetna ljuljka (Lolium multiflorum Lam.), negnojena mnogoIn a field experiment in Lipa near M. Sobota, carried out in the years 2005 and 2006, we determined the impact of different catch crops and the time of plow-in on soil mineral N (Nmin) content before the winter and in spring when seeding sugarbeet and also on subsequent productivity of sugarbeet. The experimental design was a split-plot in randomized blocks with four replications. The catch crops treated on the main plots were: at sowing with 60 kg N fertilized Italian ryegrass (Lolium multiflorum Lam.), n