Pub Date : 2023-01-01DOI: 10.7824/wcj.2023;22:00743
Aleixa de J. Silva, F. S. Ikeda, S. D. Cavalieri, D. S. Oliveira, Helen M. G. Woiand, C. C. Silva, L. Oliveira
: Background : Marandu grass can be an alternative forage in the crop-livestock integration system (CLI), although its burndown is slower than ruziziensis grass, and it is necessary to speed it up so that the sowing of early soybean cultivars occurs at the recommended time. Objective : Estimate times and doses of glyphosate and ammonium-glufosinate in sequential burndown of marandu grass with and without cutting for a shorter period of burndown. Methods : Four experiments in randomized blocks and three replications were carried out in a greenhouse with two combinations of glyphosate (g e.a. ha -1 ) and ammonium-glufosinate (g i.a. ha -1 ), respectively: (a) 1,625 and 600 and (b) 975 and 400, in plants with and without cutting. The treatments combined two times of first burndown (20 and 10 days before presumed soybean sowing – DBS) and four times of second burndown (7, 5, 3 and 0 DAS) and a control without herbicides. Results : At higher doses, there were control percentages between 75 and 98% with the 1 st. burndown at 10 DBS and the 2 nd. burndown between 7 to 0 DBS in plants with and without cutting at 7 days after application. In plants with cut and lower dose of herbicides, there was greater control with the 2 nd. burndown at 7 DBS (80%). Conclusions : The burndownn of marandu grass can be accelerated to 10 DAS when the highest dose of glyphosate and ammonium-glufosinate is applied in plants with and without cutting and with the lowest dose of herbicides in plants with cutting and 2 nd. burndown at 7 DBS.
{"title":"Dessecação acelerada de capim-marandu com a aplicação sequencial de glyphosate e amônio-glufosinate","authors":"Aleixa de J. Silva, F. S. Ikeda, S. D. Cavalieri, D. S. Oliveira, Helen M. G. Woiand, C. C. Silva, L. Oliveira","doi":"10.7824/wcj.2023;22:00743","DOIUrl":"https://doi.org/10.7824/wcj.2023;22:00743","url":null,"abstract":": Background : Marandu grass can be an alternative forage in the crop-livestock integration system (CLI), although its burndown is slower than ruziziensis grass, and it is necessary to speed it up so that the sowing of early soybean cultivars occurs at the recommended time. Objective : Estimate times and doses of glyphosate and ammonium-glufosinate in sequential burndown of marandu grass with and without cutting for a shorter period of burndown. Methods : Four experiments in randomized blocks and three replications were carried out in a greenhouse with two combinations of glyphosate (g e.a. ha -1 ) and ammonium-glufosinate (g i.a. ha -1 ), respectively: (a) 1,625 and 600 and (b) 975 and 400, in plants with and without cutting. The treatments combined two times of first burndown (20 and 10 days before presumed soybean sowing – DBS) and four times of second burndown (7, 5, 3 and 0 DAS) and a control without herbicides. Results : At higher doses, there were control percentages between 75 and 98% with the 1 st. burndown at 10 DBS and the 2 nd. burndown between 7 to 0 DBS in plants with and without cutting at 7 days after application. In plants with cut and lower dose of herbicides, there was greater control with the 2 nd. burndown at 7 DBS (80%). Conclusions : The burndownn of marandu grass can be accelerated to 10 DAS when the highest dose of glyphosate and ammonium-glufosinate is applied in plants with and without cutting and with the lowest dose of herbicides in plants with cutting and 2 nd. burndown at 7 DBS.","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88097279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.7824/wcj.2023;22:00777
W. Santos, A. H. Neto, A. D. Silva, A. L. Braccini, G. Braz, A. Jakelaitis, A. Perin
: Background : Pre-harvest desiccation has become common in systems grown with soybeans, mainly by the need to harvest anticipation for grains or seeds. However, there are few herbicides registered for this practice, and may present different results according to the culture region of the crop. Objective : In view of this, the objective of this study was to evaluate the effects of the application of desiccant herbicides on the agronomic characteristics and the physiological quality of soybean seeds in two important soybean producing regions of Brazil. Methods : The experiments were conducted in Rio Verde, Goiás and Maringá, Paraná. The treatments were constituted by the application of herbicides 2,4-D, atrazine, ammonium glufosinate and paraquat plus control treatment, applied to the physiological maturity of soybean cultivars BRS
{"title":"Performance de herbicidas na dessecação pré-colheita de cultivares de soja","authors":"W. Santos, A. H. Neto, A. D. Silva, A. L. Braccini, G. Braz, A. Jakelaitis, A. Perin","doi":"10.7824/wcj.2023;22:00777","DOIUrl":"https://doi.org/10.7824/wcj.2023;22:00777","url":null,"abstract":": Background : Pre-harvest desiccation has become common in systems grown with soybeans, mainly by the need to harvest anticipation for grains or seeds. However, there are few herbicides registered for this practice, and may present different results according to the culture region of the crop. Objective : In view of this, the objective of this study was to evaluate the effects of the application of desiccant herbicides on the agronomic characteristics and the physiological quality of soybean seeds in two important soybean producing regions of Brazil. Methods : The experiments were conducted in Rio Verde, Goiás and Maringá, Paraná. The treatments were constituted by the application of herbicides 2,4-D, atrazine, ammonium glufosinate and paraquat plus control treatment, applied to the physiological maturity of soybean cultivars BRS","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80222947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00763
A. M. Brighenti, M. F. DE OLIVEIRA, F. Lédo, J. C. Machado
{"title":"Auxinic herbicides and tembotrione sprayed on seed-propagated elephant grass","authors":"A. M. Brighenti, M. F. DE OLIVEIRA, F. Lédo, J. C. Machado","doi":"10.7824/wcj.2022;21:00763","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00763","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82360858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00744
A. B. Pereira, Pablo Iennerich, K. M. Souto, J. F. Zamberlam, R. P. Bortolotto
{"title":"Alternativas para o controle químico de capim-rabo-de-burro ( Andropogon bicornis )","authors":"A. B. Pereira, Pablo Iennerich, K. M. Souto, J. F. Zamberlam, R. P. Bortolotto","doi":"10.7824/wcj.2022;21:00744","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00744","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73359919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00761
Marciel Redin, Anderson D. Steffler, J. E. S. Stein, S. A. S. Bones
{"title":"Dinâmica do banco de sementes de plantas daninhas no solo conduzido sob plantio direto","authors":"Marciel Redin, Anderson D. Steffler, J. E. S. Stein, S. A. S. Bones","doi":"10.7824/wcj.2022;21:00761","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00761","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74725113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00773
H. Salomão, F. D. Pagnoncelli, K. Hartmann, M. Trezzi, Adriano Suchoronczek
{"title":"Use of herbicides to control regrowth plants of Euphorbia heterophylla (L.)","authors":"H. Salomão, F. D. Pagnoncelli, K. Hartmann, M. Trezzi, Adriano Suchoronczek","doi":"10.7824/wcj.2022;21:00773","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00773","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77440494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00757
M. L. Schelter, J. Constantin, R. S. Oliveira, N. Guerra, A. M. D. Oliveira
{"title":"Influência do tipo e da quantidade de palha sobre a seletividade do herbicida fomesafen aplicado em pré-emergência do algodoeiro","authors":"M. L. Schelter, J. Constantin, R. S. Oliveira, N. Guerra, A. M. D. Oliveira","doi":"10.7824/wcj.2022;21:00757","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00757","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77462952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00758
Vitor G. Kuhn, S. Ferreira, Dyogo B. Brustolin, Adriana C. Salvalaggio, N. V. Costa
{"title":"Controle químico de Maranta sobolifera","authors":"Vitor G. Kuhn, S. Ferreira, Dyogo B. Brustolin, Adriana C. Salvalaggio, N. V. Costa","doi":"10.7824/wcj.2022;21:00758","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00758","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"67 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91019511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00766
Theodoro Schneider, Fabiano Michelon, R. P. Bortolotto, J. N. Camera, J. M. Machado, Jana Koefender
{"title":"Controle químico de buva em dessecação pré-semeadura da soja","authors":"Theodoro Schneider, Fabiano Michelon, R. P. Bortolotto, J. N. Camera, J. M. Machado, Jana Koefender","doi":"10.7824/wcj.2022;21:00766","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00766","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79381643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.7824/wcj.2022;21:00769
{"title":"Eficácia de herbicidas no controle Spermacoce verticillata e seletividade para as plantas de milho","authors":"","doi":"10.7824/wcj.2022;21:00769","DOIUrl":"https://doi.org/10.7824/wcj.2022;21:00769","url":null,"abstract":"","PeriodicalId":23675,"journal":{"name":"Weed Control Journal","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73828689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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