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Commelina Species Control with Desiccants Alone and in Mixtures Planta Daninha
FERREIRA,S.D.; SALVALAGGIO,A.C.; MORATELLI,G.; VASCONCELOS,E.D.; COSTA,N.V..
ABSTRACT: The objective of this study was to evaluate the chemical control of the species C. benghalensis and C. erecta with desiccants alone and mixtures, as well as the spreading of spray droplets on the leaf surfaces. The experimental design was completely randomized in a 2 x 16 factorial arrangement with four replications, totaling 32 treatments and 128 plots. The first factor is related to the species C. benghalensis and C. erecta and the second factor corresponds to the treatments carfentrazone-ethyl in doses of 15, 30, 60 g ha-1, which added 0.5% v v-1 adhesive spreader; glufosinate ammonium at doses of 100, 200, 400 g ha-1, added 0.5% v v-1 mineral oil; glyphosate at 240, 480, 960 g ha-1; carfentrazone-ethyl + glufosinate ammonium in doses of 100,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Weed; Droplets surface tension; Spreader and sticker agent; Chemical control; Synergism.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100278
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Resistance to Glyphosate in Populations of Digitaria insularis Planta Daninha
COSTA,N.V.; MORATELLI,G.; FERREIRA,S.D.; SALVALAGGIO,A.C.; RODRIGUES-COSTA,A.C.P..
ABSTRACT: The intensive use of glyphosate can select resistant populations. This study aimed at evaluating the occurrence of glyphosate resistance in populations of D. insularis in agricultural areas. Three experiments were conducted in randomized block experimental design with four replications. The Resistance Degree (RD) was determined by a dose-response curve in the evaluated populations: Experiment 2012, São Camilo (R01 and R02) and Palotina (R03, R04 and S05-susceptible); Experiment 2013 Palotina (R06 and R12), Katueté/Paraguay (R07), Toledo (R08 and R10), Cascavel (R09), São Miguel do Iguaçu (R11), Dom Eliseu/Pará (S13-susceptible); Experiment 2015 Nova Aurora (R14), Iracema do Oeste (R15 and R16), Jesuitas (R17 and R18), Tupãssi (R19), Jotaesse...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sourgrass; Agricultural practices; Weed; Herbicide.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100330
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Sequential Application of Herbicides Alone and in Mixture With and Without Foliar Fertilizer after Pruning of Cassava Plants Planta Daninha
COSTA,N.V.; SALVALAGGIO,A.C.; FERREIRA,S.D.; BARBOSA,J.A.; GIBBERT,A.M..
ABSTRACT: A new cycle of growth begins after pruning of cassava, and weed control is necessary. Thus, this study aimed to evaluate the selectivity and efficiency of sequential application of herbicides alone and in mixture with and without of foliar fertilizer after pruning of cassava. Two experiments were carried out in a randomized block design with four replications. The treatments of Experiment 1 consisted of control without weeding; control with weeding; mesotrione; mesotrione/mesotrione; mesotrione + foliar fertilizer/mesotrione + foliar fertilizer; mesotrione/mesotrione + foliar fertilizer; mesotrione + clethodim; mesotrione + clethodim + foliar fertilizer/mesotrione + clethodim + foliar fertilizer; mesotrione + clethodim/mesotrione + clethodim;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Weeds; Chemical control.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100204
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