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| ALECRIM,A.O.; FRANÇA,A.C.; SANTOS,E.A.; MOREIRA,S.D.; LEAL,F.D.S.; TIBÃES,E.S.R.. |
| ABSTRACT The purpose of this paper was to evaluate the effects of the interference by Urochloa brizantha on coffee seedlings inoculated with arbuscular mycorrhizal fungi. A randomized block design and a 4 x 2 layout was used, where factor A was constituted by seedlings inoculated with Rhizophagus clarus, Claroideoglomus etunicatum and Dentiscutata heterogama, as well as some that were not inoculated, and factor B, constituted by plants in competition or alone. The sowing was conducted on washed sand to produce the coffee seedlings, which, during the matchstick stage, were transplanted into polyethylene bags, and inoculated when showing six pairs of leafs. Then, they were transplanted into pots where they were subjected to interference from two plants of U.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Rhizophagus clarus; Claroideoglomus etunicatum; Dentiscutata heterogama; Urochloa brizantha. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400681 |
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| SILVA,M.M.; SANTOS,J.B.; SANTOS,E.A.; SANTOS,M.V.; SARDINHA,L.T.; RIBEIRO,V.H.V.. |
| ABSTRACT: Herbicide volatilization may generate environmental and agricultural problems and result in visual or physiological contamination of non-target plant species. Thus, the goal of this research was to study the fluorescence of chlorophyll a in weeds and fodder plants under the effect of clomazone in the form of atmospheric waste. The experiment was conducted under field conditions designed in randomized blocks with four replications, in a 6 x 4 factor scheme, with six plant species: Dolichos lablab, bicolor Sorgum, Urochloa brizantha, Macrotyloma axillare, Portulaca oleracea and Sida rhombifolia. There were four solutions containing 0, 360, 720 and 1,080 g ha-1 of clomazone (0, 0.05, 0.10 and 0.15 mg L-1, considered as the volume). Seedbeds were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dolichos lablab L.; Sorgum bicolor L. Moench; Urochloa brizantha Stapf; Macrotyloma axillare E. Mey; Shut tunnels. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100210 |
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| SANTOS,E.A.; CORREIA,N.M.; SILVA,J.R.M.; VELINI,E.D.; PASSOS,A.B.R.J.; DURIGAN,J.C.. |
| Due to the large amount of pesticides applied in agriculture, mainly herbicides, there is a growing concern about a possible environmental contamination with these products, including water bodies. Given the above, the aim of the present work was to detect and quantify herbicides through multiresidue analysis in water samples collected in semi-artesian wells and springs in a rural area of the city of Jaboticabal (SP). Samples were collected from 32 wells and 13 water springs, in three different seasons: October 2010, February 2011 and May 2011. Additionally, samples at a residence in the urban area were also collected. Analysis using high performance liquid chromatography coupled to mass spectrometry was performed and herbicides ametryn, amicarbazone,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; LC-MS/MS; Water springs; Semi-artesian wells. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000100147 |
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