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2007, vol. 35, iss. 4, pp. 468-475
Possibilities of weed control in oilseed rape
aUniversity of Novi Sad, Faculty of Agriculture
bDipkom, Agrimatco Group, Novi Sad
Abstract
Oilseed rape (Brassica napus and B. rapa) belonging to fam. Brassicaceae, is competitive to majority of weed species. However, if weeds are not controlled, they can cause 50% of yield loss and reduce seed quality. Efficient program of weed control in oilseed rape crop should include crop rotation, plowing, disc harrowing and herbicide use. Possibilities of broad leaved weed control in spring crops is limited. This enables creation of spring weed species seed bank in soil. With the purpose of seed reduction in soil, preventive mechanical or chemical measures can be applied in pre -cropping. For the control of annual grass and perennial weed species in spring and autumn oilseed rape, trifluralin, clomazone and alahlor can be used. For voluntieer annual and perrenial narrow leaved weed species corrective herbicides based upon active ingrediants fluazifop-p-butil, quizalofop-p-tefuril and quizalofop-p-ethyl are used, whereas for the control of broad leaved weed species only herbicide clopyralid is registered. In the world on the greater areas, i.e. 11% of 25 millions hectars of oilseed rape are variety tolerant to non-selective herbicide glufosinate ammonium is grown.
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article language: Serbian
document type: unclassified
published in SCIndeks: 23/01/2008