sodininkystė ir daržininkystė 25(4)

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SODININKYSTË IR DARÞININKYSTË. SCIENTIFIC ARTICLES. 2006. 25(4).
INFLUENCE OF HERBICIDE BOXER 800 EC
(PROSULFOCARB 800 G L -1 ) ON EDIBLE ONION
CROP WEEDING AND HARVEST
D. Kavaliauskaitë
Summary
Field experiments in edible onion crop to investigate herbicide boxer (a.i. prosulfocarb
800 g l -1 ) were carried out at the Lithuanian Institute of Horticulture in
2005–2006.
Herbicide boxer very effectively decreased total number and air-dry mass of
weeds in both years of investigation. In 2005 herbicide boxer was sprayed after
onion sowing. Most effective the biggest norm – 5.0 l ha -1 of boxer decreased total
number of weeds by 92.7%; 4.0 l ha -1 – 79.3%, 3.0 l ha -1 – 73.7%. The efficacy of
herbicide boxer treated at onion 1-3 leaf stage in 2006 was lower. The biggest norm –
5.0 l ha -1 of boxer decreased total number of weeds by 64.9%; 4,0 l ha -1 – 44.5%,
3.0 l ha -1 – 47.5%.
Key words: herbicide, onion, spraying time, yield, weeds.
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