Effects of tillage systems on maize yield and porosity of the irrigated chernozem ploughing layer | Uticaj sistema obrade na prinos kukuruza i poroznost oraničnog sloja navodnjavanog černozema
2009
Kresović, B., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Tolimir, M., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia)
The objective of the study was conventional tillage (disc harrow, plough, seedbed conditioner), reduced tillage (rotary shredder) and direct drilling (direct drill seeder). The analysis of variance performed for the yield shows significant differences among observed tillage systems carried out on chernozem. The highest yield of 12.39 t/ha was obtained by conventional tillage. Yields obtained by reduced tillage and direct drilling were lower and amounted to 11.03 t/ha and 10.03 t/ha, respectively. The conventional tillage system provided the most favourable porosity with the average value of 51.08%. With no statistical significant differences, the porous to solid phase ratio was somewhat less favourable in soil tilled by the rotary shredder (50.47 vol.%), while it was significantly lower in the variant of direct drilling (48.12 vol%).
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