Weed infestation of onion in soil reduced cultivation system
2003
Blazewicz-Wozniak, M.,Akademia Rolnicza, Lublin (Poland). Katedra Uprawy i Nawozenia Roslin Ogrodniczych
The influence of no-tillage cultivation and conventional tillage with spring ploughing on weed infestation of onion was compared. In experiment four cover crop mulches (Sinapis alba L., Vicia sativa L., Phacelia tanacetifolia B., Avena sativa L.) were applied. From annual weeds in weed infestation of onion in great number Matricaria chamomilla L., and Senecio vulgaris L. stepped out, and from perennial - Agropyron repens (L.) P.B. Reduced soil cultivation system (no-tillage) caused the significant growth of primary weed infestation of onion in comparison with conventional tillage. In all years of investigations the executed pre-sowing ploughing limited significantly the annual weeds' number in primary weed infestation. The applied mulches from cover plants limited in considerable degree the number of primary weed infestation. In all years of investigations the most weeds stepped out on control object. Among investigated cover crop mulches Vicia sativa L. and Avena sativa L. had a profitable effect on decrease of onion's primary weed infestation. Soil cultivation system and cover crop mulches had no significant residual influence on the secondary weed infestation of onion
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