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V letu 2021 smo pri prvi košnji na polju, blizu naselja Breg ob Savi, izvedli poljski poskus, ki je potekal na dveh lokacijah. Na prvi lokaciji je bil poskus v obliki razdeljenih parcel, kjer smo pri košnji z diskasto kosilnico uporabili tri vozne hitrosti, in sicer 4, 8 in 16 km/h ter pri tem merili porabo goriva. Opravljanje drugega poskusa pa je potekalo na parceli ne pravokotne oblike z oviro. Nastavitve kosilnice in vrtljaji na priključni gredi so bili ves čas poskusa enaki. Primerjali smo porabo goriva in kakovost odkosa travne ruše v odvisnosti od delovne hitrosti košnje. Primerjali smo tudi, kako oblika parcele vpliva na površinsko storilnost in porabo goriva. Beležili smo še porabo goriva na poti od kmetije do travnika in maso pridelka. Poraba goriva (l/h) se je večala z večanjem hitrosti košnje, poraba goriva na hektar pa se je s povečanjem hitrosti košnje zmanjševala. Pri večjih voznih hitrostih je bila večja tudi površinska storilnost. Oblika parcele in ovira na njej vpliva na porabo goriva in površinsko storilnost košnje. Raziskava je pokazala, da je površinska storilnost košnje manjša v primeru parcele ne pravokotne oblike, obratno pa se poveča poraba goriva na hektar (l/ha). In 2021, during the first mowing in the field, near the settlement of Breg ob Savi, we carried out a field experiment that took place at two locations. In the first location, the experiment took place in the form of divided plots where we used three driving speeds when mowing with a disc mower, i.e. 4, 8 and 16 km/h. We measured fuel consumption in the process. The second attempt of the experiment was performed on a plot of non-rectangular shape with an obstacle. The mower settings and the PTO speed were the same throughout the entire experiment. We compared fuel consumption and lawn mowing quality as a function of mowing working speed. We also compared how the shape of the plot affects surface productivity and fuel consumption. We also recorded fuel consumption (l/h) on the way from the farm to the meadow and the mass of the crop (t/ha). Fuel consumption (l/h) increased with increasing mowing speed while fuel consumption per hectare decreased with increasing mowing speed. At higher driving speeds, surface productivity was also higher. The shape of the plot and the obstacle on it affects fuel consumption and surface productivity of mowing. The research has shown that the surface productivity of mowing is lower in the case of a plot, non-rectangular in shape, and vice versa: fuel consumption per hectare (l/ha) is increased. |
