Rezerve semena korovskih biljaka u konvencionalnom sistemu gajenja kukuruza / Weed seed bank in conventional system of growing maize
2017
Saulić, Markola | Đalović, Ivica | Božić, Dragana | Vrbničanin, Sava
Crop rotation and tillage systems are the most important agrotechical measures that interaction with the suppression of weeds and affect the size and composition of the weed seed bank and are in direct correlation with their content in the soil. Knowing seed bank, as well as monitoring the dynamics of the appearance of weed species, constitute the basis for planning and implementation of measures for their effective suppression. The paper presents the evaluation of weed infestation of maize grown in monoculture, 2-year crop rotation (maize, wheat) and 3-year crop rotation (maize, soybeans, wheat) on long-term experiment "Crop Rotation" of the Institute of Field and Vegetable Crops in Novi Sad. Soil samples, taken after the harvest of corn from a depth of 0–15 cm, 15–30 cm and 30–40 cm, were used for the analysis of weed seed bank. By applying the methods of physical extraction, soil samples were irrigated through a system of sieves of different sizes, and by using binoculars and a guide for the determination, a separate determination of seeds was made. The data obtained made it possible to view the number of seeds present in the soil, as well as the vertical distribution of weed species in both arable and subsoil layer.
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