Results of a trial with hydrogel in cabbage production

Abstract

Different modes of hydrogel application were tested on yield and yield components in production of early cabbage on chernozem soil at Rimski Šančevi. Also, its effect on soil chemical properties, soil water-physical features and soil microbiological activity were observed. There were four variants in this trial: control - without hydrogel, gel - swelled hydrogel incorporated into planting holes, dust - dry hydrogel dust incorporated into planting holes, dust - dry hydrogel dust scattered on soil surface in bands and incorporated. As for the observed features (whole plant weight, head diameter and cabbage yield) statistically significant differences were found between gel and other variants. The highest yield was with gel (55.85 t ha-1) and lowest with bands (39.78 t ha-1). Cabbage yield in gel variant is higher than in control by 18.98%. Yield was insignificantly decreased (1.02%) in dust variant incorporated into planting holes as compared to control. Application of hydrogel did not significantly impact soil properties nor distribution of tested groups of microorganisms and activity of dehydrogenase enzymes.

Na zemljištu tipa černozem na Rimskim Šančevima ispitivani su različiti načini primene hidrogela na prinos i komponente prinosa u proizvodnji ranog kupusa. Takođe je posmatran njegov efekat na hemijske osobine zemljišta, vodno-fizička svojstva zemljišta i mikrobiološku aktivnost zemljišta. U ogledu su bile zastupljene četiri varijante: kontrola - bez primene hidrogela, gel - nabubreli hidrogel unešen u sadne jamice, prah - suvi hidrogel u prahu unešen u sadne jamice, prah - suvi hidrogel u prahu rasturen po površini zemljišta u obliku traka i inkorporiran. U odnosu na posmatrane osobine (masa cele biljke, prečnik glavice i prinos kupusa) ostvarene su statistički značajne razlike između varijante gel i ostalih varijanti. Najveći prinos ostvaren je u varijanti gel (55,85 t ha-1) a najmanji u varijanti trake (39,78 t ha-1). Prinos kupusa u varijanti gel veći je u odnosu na kontrolu za 18,98 %. Prinos u varijanti sa prahom hidrogela unešenog u sadne jamice neznatno je smanjen (1,02 %) u odnosu na kontrolu. Primena hidrogela nije značajno uticala na osobine zemljišta kao ni na zastupljenost ispitivanih grupa mikroorganizama ili aktivnost enzima dehidrogenaze.