THE USE OF HERBICIDES AND THEIR EFFECT ON THE QUANTITY AND DEVELOPMENT OF WEEDS IN LUPINE CROPS
Keywords:
white lupine, herbicides, the active ingredient, the prevalence and harmfulness of weeds, echinochloa crus-galliAbstract
Weeds pretend great damage to the crops of cultivated plants. On the littered fields significantly bring down the yield and quality of agricultural products. Lupin is a culture that requires for its cultivation pure areas without weeds. The aim of the research was to study the species composition of weeds; the effectiveness of different herbicides; their effects on the growth and development of weeds. The study was carried out during 2013 – 2015 in EMDR "Chabany" NSC "Institute of agriculture NAAN". Records of the quantity and analysis of the species composition of weeds on crops of white lupin varieties in Serpneviy were conducted on plots of all variants of the experiment; 30 days after application of herbicides. The harmfulness of the weed is determined not only by numbers but also their species composition; therefore; for an objective assessment of the pest damage be sure to consider the kinds of weeds. To improve the effectiveness of herbicides should be chosen; taking into account the species composition of weeds common to specific fields. The most effective and stable for various groups of weeds is herbicide Harnes and the tank mix Harnes + Jupiter and Prometrex + Jupiter. Application of herbicides not only affects the number of weeds; greatly reducing their number; but also suppresses the development of those plants weeds that were not destroyed. The inhibitory effect of most herbicides on the growth and development of plants of weeds are strongly occur within the first month after application. The most negative impact on the development of a malignant weed echinochloa crus-galli of the identified variants with the introduction of the sprouts of Jupiter herbicide and a tank mix Treflan + Jupiter. The effectiveness of destruction of plants echinochloa crus-galli in the first place; it should be noted the tank mixture Harnes + Jupiter; where destruction of weeds on average over the growing season amounted to 60.7 %. High efficiency for the destruction of echinochloa crus-galli also noted when making herbicide Harnes – 58.0% of dead plantsReferences
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