Weediness and productivity of doublecropped soybean as affected cropping systems | Zakorovljenost i produktivnost postrnog useva soje u zavisnosti od sistema gajenja
2008
Momirovic, N., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Dolijanovic, Z., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Simic, M., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia) | Radosevic, Z., Institut za povrtarstvo, Smederevska Palanka (Serbia)
Successful double cropping of soybean is not possible without irrigation, especially under reduced tillage systems. Common application of conservation farming systems and doublecropped soybean production are limited mostly by expensive herbicide treatments. Adoption of advanced growing techniques through narrow sowing and decreased inerrow distance are crucial to improve crop competitiveness against weeds. The level od weediness and yield of double cropped soybean have been examined on the experimental field of the Maize Research Institute Zemun Polje, Belgrade - Zemun (Serbia). During the investigation, two different soil tillage systems: conventional and conservation; two interrow distances: 76 cm and 38 cm; and two herbicide treatments were evaluated. The average weediness of doublecropped soybean, expressed as fresh biomass of weeds, was lower under conventional soil tillage than conservation tillage, especially on the variants with narrow row distance and herbicide application. Lower weediness in these specific treatments resulted in a significant grain yield increase of doublecropped soybean.
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