@conference{
author = "Dolijanović, Željko and Simić, Milena and Dragičević, Vesna and Momirovic, Nebojsa and Janošević, Biljana",
year = "2018",
abstract = "Providing land cover from the aspect of protection of crops from weeds, diseases and pests and
reduced use of pesticides, improvement of the structure and soil regime of the soil, as well as storing
of moisture reserves in the soil are the main advantages of growing cover crops. In addition, it often
happens that with such a method of growing we obtain more yields of crops compared to the
conventional cultivation method.
Experiments with cover crops were carried out at the Maize Research Institute in Zemun polje, on the
chernozem soil type during 2013/14, 2014/15 and 2015/16 growing seasons. The experiment included
four treatments with winter cover crops (common vetch-V1, oat V2, fodder kale-V3 and field pea-V7),
mixtures of legume crops with oats-V4 and V6), another variant in which the land was covered with
dead organic mulch (V5), and traditional variant, classical ploughing in the fall and keeping bare land
uncovered during the winter (V8). The experiments were located in different plots in each year and
winter wheat was the previous crop. In the autumn, before planting of cover crops, we have entered
the entire amount of P and K in the forms of monopotassium phosphate plus additional quantity of
nitrogen 50 kg/ha by ammonium nitrate, and on the two control variants, also all of P2O5 i K2O and
40 kg ha-1 N in the form AN. In the next spring (May) leguminous cover crops had received another
30 kg ha-1 N in the form of AN (remaining 40 kg ha-1 considered to be provided by nitrogen
fixation), oats an fodder kale 70 kg ha-1 N, and control plots another 80 kg ha-1 N, also in the form of
AN. Sowing of cover crops were done manually in the last of October or at the beginning of
November. Mowing the above-ground biomass of winter cover crops were performed 7-10 days
before planting of popcorn.
The legume cover crops expressed greater efficiency in weed control in comparison to different
cropping systems. The highest yields of popcorn were achieved in 2014, especially on variants V4
(5.41 t ha-1), V3 (5.26 t ha-1) and V1 (5.11 t ha-1), but these values are also very small compared to the
potential of hybrid ZP 611k. The results of grain yields in 2015 and 2016 were significantly lower (3.99
and 4.14 t ha-1); primarily due to meteorological conditions, and in these years a higher moisture
content in seed was measured (14.85 % and 14.6 %). The average popping expansion in these studies
is equalized by years of investigation, significantly lower (24.53 %) compared to which this hybrid
reached earlier (35-40%). Achieving the full effect of such growing system is possible if sowing is
done at optimum time, because it is a hybrid of specific properties that is more sensitive to the
competitive of weeds.",
publisher = "Podgorica : University of Montenegro, Faculty of Philosophy",
journal = "International GEA (Geo Eco-Eco Agro) conference "GREEN ROOM SESSIONS 2018", Podgorica, 01-03.11.2018. - Book of abstracts",
title = "The effect of cover crops on the weediness, productivity and quality of popcorn (Zea mays L. ssp. everta)",
pages = "36-36",
url = "https://hdl.handle.net/21.15107/rcub_rik_1015"
}
