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Topolistna kislica (Rumex obtusifolius L.) je eden izmed najbolj trdovratnih plevelov na travinju. V diplomskem delu je strnjen pregled obstoječe domače ter tuje strokovne literature o topolistni kislici in predstavljeni rezultati dveh, v Zgornjih Hočah pri Mariboru in na Fakulteti za kmetijstvo in biosistemske vede izvedenih poskusov s to rastlino. V prvem poskusu, ki smo ga izvedli spomladi 2007 na 72 parcelicah velikosti 5 x 5 m, smo topolistno kislico zatirali na dva načina, na 36 parcelicah smo plevel izkopavali z lopato »štiharico«, na preostalih 36 parcelicah pa smo plevel lokalno kemično zatirali s herbicidom Starane z aktivno snovjo fluroksipir – 1 MHE. Pri ročnem izkopavanju smo pri delovni storilnosti 0,899 rastlin na minuto dosegli 100 % uspešnost zatiranja, prav tako smo pri lokalnem kemičnem zatiranju dosegli 100 % uspešnost pri delovni storilnosti 5,78 rastlin na minuto. V drugem poskusu smo izkopane korenine narezali na dva dela (zgornji in spodnji) ter jih posadili v 3 pladnje napolnjene s rastnim substratom na globino do 5 centimetrov, po dveh mesecih smo ugotavljali uspešnost regeneracije in ugotovili, da se rastline lahko regenerirajo samo iz zgornjih delov korenin (8 cm). The broad-leaved dock (Rumex obtusifolius L.) is one of the most problematic weeds of grasslands. The thesis presents a concise review of the Slovene and foreign literature associated with the topic as well as the results from two experiments conducted with this plant, the first one in Zgornje Hoče near Maribor and the other one at the Faculty of Agriculture and Life Sciences. In the first experiment, conducted in spring 2007 on 72 plots (5 x 5 m) the broad-leaved dock was suppressed with two different methods on 36 plots the weed was dug out with a spade, while on the other 36 plots, the herbicide Starane with the active substance fluroxypyr – 1 MHE was used for local chemical control. With the manual digging out an effectiveness of 100 % with a work efficiency of 0.899 plants per minute was achieved, whereas with the local chemical control the effectiveness was also 100 %, but with a work efficiency of 5.78 plants per minute. In the second experiment the dugout roots were sliced into two parts (an upper and lower part) and planted to 3 trays filled with plant substrate, into a depth of 5 cm. After two months the regeneration efficiency rate was checked and the experiment showed that the plants regenerated only from the upper parts of the roots (8 cm). |
