Selectivity of pre and postemergence herbicides in single or combined applications in castor crop.

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dc.contributorAUGUSTO GUERREIRO FONTOURA COSTA, CNPA; VALDINEI SOFIATTI, CNPA; CLEBER D. G. MACIEL, UNIVERSIDADE ESTADUAL DO CENTRO OESTE; JALMI GUEDES FREITAS, CNPA; GLEIBSON DIONIZIO CARDOSO, CNPA; LARISSA M. WIRGUES, UNIVERSIDADE ESTADUAL DO CENTRO OESTE.
dc.creatorCOSTA, A. G. F.
dc.creatorSOFIATTI, V.
dc.creatorMACIEL, C. D. G.
dc.creatorFREITAS, J. G.
dc.creatorCARDOSO, G. D.
dc.creatorWIRGUES, L. M.
dc.date2022-02-11T02:02:21Z
dc.date2022-02-11T02:02:21Z
dc.date2022-02-10
dc.date2021
dc.date.accessioned2026-06-30T23:16:25Z
dc.descriptionOne of the main challenges in castor crop (Ricinus communis L.) production is efficient weed management mainly due to limited options of selective herbicides. This study evaluated the selectivity of herbicides applied alone or in combination in pre- and postemergence applications in castor crop. Two field experiments were carried out under irrigation conditions in a semi-arid region of Northeast Brazil. It was found that the visual symptoms of phytointoxication of the herbicides used on castor were mild in both experiments. Consequently, there were no significant interferences on plant height, number of racemes, and grain (seed) yield. Pre-emergence applications (g ha−1) of trifluralin (1800), pendimethalin (1500), clomazone (750), clomazone + trifluralin (750 + 1800), and clomazone + pendimethalin (750 + 1500) followed by chlorimuron-ethyl in postemergence (15 g ha−1) are selective to castor. The application (g ha−1) of pendimethalin + clomazone (1000 + 500) in pre-emergence, associated with chlorimuron-ethyl (10 and 15), metamitron (2800 and 4200), ethoxysulfuron (60 and 80), or halosulfuron-methyl (75 and 112.5) in one or two applications in postemergence, as single or split applications, in an interval of 14 days, are selective to castor crop.
dc.format10 p.
dc.identifierAgronomy, v. 11 , n. 9, p. 1-10, 2021.
dc.identifier2073-4395
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1139938
dc.identifier10.3390/ agronomy11010019
dc.identifier.urihttp://hdl.handle.net/123456789/377940
dc.languageeng
dc.rightsopenAccess
dc.subjectTolerância
dc.subjectCicinus communis L
dc.subjectMamona
dc.subjectPraga de Planta
dc.subjectPlanta Oleaginosa
dc.subjectCastor oil
dc.subjectWeed control
dc.subjectHerbicides
dc.titleSelectivity of pre and postemergence herbicides in single or combined applications in castor crop.
dc.typeArtigo de periódico

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