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RISS 인기검색어
- 검색키워드
- 저자 : Meisam Zargar (검색결과 2 건)
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Meisam Zargar,Amir Lakzian,Rahil Rasooli,Ebrahim Izadi-Darbandi 한국작물학회 2020 Journal of crop science and biotechnology Vol.23 No.2
It is exceptionally difficult to have productive farming without the use of herbicides. It has been found that they create difficulties in the growth and biological nitrogen fixation of some legume crops after their application. Adverse impacts may result from a direct effect of the herbicide on rhizobial growth and/or an indirect effect on plant growth. In order to study the effect of some PRE and POST herbicides on nodulation, nitrogen fixation, and growth characteristics of three chickpea cultivars, a greenhouse trial was conducted in a completely randomized design with factorial arrangement and three replications. Pyridate, imazethapyr, and trifluralin were applied with the recommended rates of 1100, 100, and 720 g ai ha-1, respectively, and also non-treated control on three chickpea cultivars (ILS482, Hashem, and Kaka). The results showed that trifluralin and pyridate herbicides had the highest and the least negative impact on growth characteristics of three examined cultivars. Pyridate showed a positive effect on vegetative characteristics but nodulation and total nitrogen contents in the shoots of chickpea cultivars decreased significantly. Results also revealed that root and shoot growth, nodulation, and nitrogen fixation diminished significantly when imazethapyr and trifluralin were applied to Hashem and ILC482 cultivars. It seems that pyridate is an appropriate herbicide for broadleaf weed control in chickpea fields.
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Maryam Bayat,Meisam Zargar 한국작물학회 2020 Journal of crop science and biotechnology Vol.23 No.2
Field bindweed is a deep-rooted and drought-tolerant perennial weed that can hardly be controlled once it has become established in wheat. Field experiments were carried out to investigate the control of field bindweed and winter wheat response to pyroxasulfone, metribuzin, dicamba, and a mixture of pyroxasulfone plus metribuzin plus dicamba, mesosulfuron, 2,4-D, 2,4-D plus mesosulfuron. The above-mentioned herbicides were applied at the 3-4 leaf stage and at the wheat tillering phase as well, depending on label recommendations. Experiments were performed in the Nemchinovka and Sokalova, Moscow regions in the 2013 and 2014 growing seasons. Controlling field bindweed was different depending on region and crop year. The reason for the variable weed control between the two regions are that there were fewer colder days after the Nemchinovka applications than there were after the Sokalova applications. The most consistent and greatest field bindweed control (87 to 97%) occurred with pyroxasulfone applied at the tillering stage in both regions. Pyroxasulfone application at the wheat tillering stage affected the control of field bindweed ranging from 69 to 90%. The least field bindweed control (25%) was obtained for mesosulfuron when applied at the 3-4 leaf stage. Wheat injury observed in response to herbicide treatments was minimal and less than 17% and transient; wheat recovered with no differences in yield. These herbicides can be safely applied in winter wheat for field bindweed control in the Moscow region.
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