Two Years Experiment with Different Soil Tillage Systems in Production of Winter Barley and Maize in Posavina
Dvogodišnji eksperiment s različitim sistemima obrade tla u proizvodnji ozimog ječma i kukuruza u Posavini
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Author
Kosutic, Silvio
Kovacev, Igor
Filipovic, Dubravko
Pospisil, Milan
Gospodaric, Zlatko
Keywords
tillageenergy consumption
barley
maize
obrada tla
utrošak energije
ozimi ječam
kukuruz
Metadata
Show full item recordAbstract
The paper presents results of the two years experiment in winter barley and
maize production with four different soil tillage systems carried out in Western Slavonia,
at agricultural company "PK Nova Gradiska" in village Staro Petrovo Selo, located 150
km south-east from Zagreb (45° 10’ N, 17° 30’ E). Energy requirement comparison
showed that CT system in both crops production had the highest fuel consumption of
56.07 L ha-1 (winter barley) and 62.93 L ha-1 (maize). The best energy saving system in
winter barley was RT1 with 37.58 L ha-1 and RT2 with 36.30 L ha-1 in maize production.
Soil tillage systems comparison regarding labour requirement unveiled that conventional
tillage required 2.39 h ha-1 and 0.52 h Mg-1 in winter barley, while in maize production
required 2.62 h ha-1 and 0.35 h Mg-1. The lowest labour requirement of 1.35 h ha-1 and
0.32 h Mg-1 obtained RT2 in winter barley, while in maize production RT2 achieved
1.48 h ha-1 and RT1 0.15 h Mg-1. The highest average yields were obtained by CT
system in winter barley and RT1 in maize production, while the lowest yields were with
RT1 in winter barley and RT3 in maize production. Rad prikazuje rezultate dvogodišnjeg eksperimenta u proizvodnji ozimog ječma
i kukuruza različitim sistemima obrade tla provedenim u zapadnoj Slavoniji na
površinama poduzeća "PK Nova Gradiška" u mjestu Staro Petrovo Selo (45° 10’ N, 17°
30’ E), smještenom 150 km istočno od Zagreba. Usporedba sistema prema utrošku
energije pokazuje da je najveći potrošač CT sistem koji je trebao 56.07 L ha-1 u ozimom
ječmu i 62.93 L ha-1 u kukuruzu. Energetski najštedljiviji sistemi obrade tla bili su: u
ozimom ječmu RT1 sa 37.58 L ha-1, a u kukuruzu RT2 sa 36.30 L ha-1. Usporedba
sistema obrade tla prema utrošku ljudskog rada pokazuje da konvencionalni system (CT)
treba 2.39 h ha-1 i 0.52 h Mg-1 u ozimom ječmu, a u kukuruzu 2.62 h ha-1 i 0.35 h Mg-1.
Najmanji utrošak ljudskog rada od 1.35 h ha-1 i 0.32 h Mg-1 postigao je sistem RT2 u
ozimom ječmu, a u kukuruzu je ovaj sistem postigao 1.48 h ha-1, dok je RT1 postigao
0.15 h Mg-1. Najveći prosječni urod ozimog ječma postignut je CT sistemom, a kukuruza
RT1 sistemom. Najniže urode postigli su: RT1 sistem u ozimom ječmu i RT3 sistem u
kukuruzu.