Analysis of the Work Quality of the Vicon Rs-L Fertilizer Spreader with Regard to Application Attributes
Analiza kvaliteta rada rasipača đubriva Vicon RS-l prema načinu primene
View/ Open
Author
Sima, Tomas
Nozdrovicky, Ladislav
Koloman, Kristof
Keywords
fertilizer spreaderquality of work
working speed
uniformity distribution
spread pattern
rasipač đubriva
kvalitet rada
radna brzina
ujednačenost rasipanja
put rasipanja
Metadata
Show full item recordAbstract
Within our research we have tested spinning disc fertilizer spreader
VICON RS-L and fertilizer calk ammonium nitrate with dolomite (trade mark LAD 27)
was used. Experiment was conducted on a flat land with balanced micro-relief after
harvest of the perennial forage crops. It was carried 6 variants of experiment with two
working speeds 8 km.h-1 and 12 km.h-1 and with three fertilizer application rates 100
kg.ha-1, 200 kg.ha-1 and 300 kg.ha-1. Each variant of experiment was repeated four times.
The fertilizer spreader was set according to the manufacturer requirements for this type
of fertilizer and for the maximum spreading width (in our case for 42 meters). The value
of the coefficient of variation was used as a basic parameter to assess the quality of
fertilizer spreader work. Obtained results have been compared with the national standard
STN EN 13739, which defines maximum value of coefficient of variation 15 %. For the
spreader line spacing 24 m the coefficient of variation varied within the range 7.87 % -
13.60 % and for 36 m spacing line varied within the range 25.87 % - 38.11 %. Working
speed negatively affects the uniformity of fertilizer application. With increasing of
working speed the quality of work was decreased. We have recommended to reduce the
working speed of the fertilizer spreader to optimize the spreader spacing line in order to
achieve higher work quality of the fertilizer spreader – more uniform fertilizer
distribution. Irregularity of distribution fertilizer on the field has a negative
environmental effect. U našem istraživanju testirali smo rasipač đubriva sa rotacionim diskom
VICON RS-L sa amonijum-nitratnim đubrivom sa dolomitom (marka LAD 27). Ogled je
izveden na ravnom zemljištu posle žetve krmnog bilja. Izvedeno je 6 varijanti ogleda sa
dve radne brzine 8 km•h-1 i 12 km•h-1 i sa tri norme đubrenja 100 kg•ha-1, 200 kg•ha-1 i
300 kg•ha-1. Svaka varijanta je ponovljena četiri puta. Rasipač je bio podešen prema
zahtevima proizvođača za ovaj tip đubriva i za maksimalni radni zahvat (u našem slučaju
za 42 m). Vrednost koeficijenta varijacije uzeta je kao osnovni parameter za procenu
kvaliteta rada rasipača. Dobijeni rezultati su poređeni sa nacionalnim standardom STN
EN 13739, koji definiše maksimalan koeficijent varijacije od 15%. Na rasponu rasipanja
od 24 m koeficijent varijacije je iznosio 7.87% - 13.60%, a za 36 m 25.87% - 38.11%.
Radna brzina je je negativno uticala na ujednačenost rasipanja. Sa povećanjem radne
brzine kvalitet rada se smanjivao. Preporučili smo smanjenje brzine rasipača radi
optimizacije širine rasipanja i dobijanja boljeg kvaliteta rasipanja – veća ujednačenost
rasipanja. Neujednačeno rasipanje đubriva na parceli negativno utiče na sredinu.