The influence of foliar application of different types of fertilizers on yield and components of winter wheat yield (Triricum aestivum L.) in organic production system

U cilju unapređenja organske proizvodnje razvojem novih tehnologija, primena bioregulatora, organskih i folijarnih đubriva sve više pronalazi mesto u naučno istraživačkom radu, ali i u praksi. Ogled sa ozimom pšenicom sorte NS-40S izveden je u proizvodnoj 2013/2014. godini na sertifikovanoj površini Odeljenja za alternativne kulture u Bačkom Petrovcu. Ogled je izveden po split-plot sistemu u tri ponavljanja. Biljke su folijarno tretirane u sledećim kombinacijama: 1) tečnim đubrivom od koprive; 2) kombinacijom tečnog đubriva od koprive i vodenog ekstrakta rastavića (preparat „508“); 3) bioregulatorom AGROSTEMIN®; 4) kombinacijom bioregulatora AGROSTEMIN®, tečnog đubriva od koprive i preparata „508“ - AKR i 5) glistenjakom. Kontrolne varijante bile su organska pšenica bez tretmana i konvencionalna NS-40S koja je đubrena sa 127 kg N/ha. Tretiranja su obavljena po planu ogleda u aprilu i maju mesecu. Žetva je obavljena u punoj zrelosti.In order to contribute to the explanation of the impact of the use of bioregulators, organic and foliar fertilizers on the yield components of wheat, the aim of the research was to perform a comparison of the use of bioregulators, liquid fertilizers and earthworm compost. The field trial with winter wheat NS-40S was carried out on the certified arable land of the Institute of field and vegetable crops in Bački Petrovac. The experiment was conducted in a split plot system with three replications. Plants were foliar treated as followed: 1) liquid fertilizer from nettles; 2) combination of liquid fertilizer of nettles and horsetail water extract (preparation „508“); 3) foliar treatment with Agrostemin®; 4) foliar treatment with Agrostemin® and combination of liquid fertilizer of nettles and horsetail water extract - AKR; 5) earthworm compost liquid foliar fertilizer. The control was untreated organic wheat and conventional (127 kg N/ha). Treatments were apllied according to plan in April and May during tillering and stem extension of winter wheat. Harvest was performed in full maturity