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| Registros recuperados: 138 | |
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| Ribeiro,Samia R. de S.; Souza,Amanda dos S.; Leal,Jéssica F. L.; Borella,Junior; Araujo,André L. S.; Pinho,Camila F. de. |
| ABSTRACT The long residual period of pre-emergent herbicides can interfere with successor crops, causing a phenomenon named carryover. This study evaluated the residual effect of imazapyr + imazapic herbicides on cotton crop grown in succession to soybean. The experiment was conducted between September 2016 and March 2017, in a randomized block design with 4 replicates, where the treatments were four doses of imazapyr + imazapic, 75, 150, 225 and 300 g a.i. ha-1, and the control. The analyzed variables were chlorophyll a fluorescence, shoot height, root length and volume, dry shoot mass and root dry mass. The data were submitted to analysis of variance and Tukey’s test, at p ≤ 0.05. The reduction in photosynthetic performance indexes for treatments of 150,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum L.; Imidazolinones; Herbicides. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600400 |
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| Gomes,Schaianne A.; Arantes,Sayonara A. do C. M.; Andrade,Ednaldo A. de; Arantes,Kelte R.; Viana,Daniela N.; Pereira Junior,Cezar da C.. |
| ABSTRACT To increase the efficiency in the control of weeds, it is common the use of a mixture of the herbicides glyphosate and 2,4-D in the desiccation. This paper aimed to evaluate the residual effect of these two herbicides on the development of maize plants, in soils of different textures. The experiment was conducted in a greenhouse, in 2015, in a completely randomized design in a 2 x 2 x 7 factorial scheme, corresponding to two soils (Red Yellow Latosol and Quartzarenic Neosol), two herbicide application times (5 and 10 days before maize sowing) and seven doses of herbicides (recommended dose of glyphosate, recommended dose of 2,4-D; mixing the recommended doses of glyphosate and 2,4-D; two, ten and fifty times the recommended doses in admixture; and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytotoxicity; Herbicides; Red Yellow Latosol; Quartzarenic Neosol. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500317 |
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| Maia,Leonardo Carvalho Brant; Maia,Victor Martins; Lima,Mário Henrique Melo e; Aspiazú,Ignacio; Pegoraro,Rodinei Facco. |
| In pineapple fields, weed competition is exacerbated by the fact that the crop is small and has a very slow vegetative development. The objective of this study was to determine the effects of herbicides on growth, yield and quality of pineapple, cultivar 'Pérola'. The experimental design was in randomized blocks with four treatments and four replications. Treatments consisted of weeding by hoe and the herbicides diuron; fluazifop-p-butyl and atrazine + S-metolachlor applied in post-emergence. The characteristics evaluated monthly during the vegetative stage were stem diameter, D-leaf length, number of leaves, number of emitted leaves and percentage of natural floral induction. In the reproductive phase, evaluations were made of average fruit weight (g)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ananas comosus var. comosus; Weeds; Herbicides; 'Pérola'. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000300020 |
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| Berthold,David Erwin; Elazar,Ariel; Lefler,Forrest; Marble,Christopher; Laughinghouse IV,Haywood Dail. |
| ABSTRACT Greenhouses and nurseries provide ideal environments for facilitating the formation of nuisance algal mats. Algal growth poses safety concerns to horticulturists and stimulates the propagation of unwanted plant pests and pathogens. To date, few strategies and data are available to effectively manage algal problems. The effectiveness of five algaecides was tested on two varying surfaces of greenhouses in situ to elucidate the efficacy of chemical methods of removing algae. Moreover, Nostoc commune (Vaucher ex Bornet & Flahault) was treated on ceramic tiles in vitro , as it is a common alga in greenhouses and nurseries. We found that each algaecide had different effects, depending on the chemical applied, the surface to which the chemical was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nostoc commune; DNA; Cyanobacteria; Herbicides; Management. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000101601 |
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| Sodsai Changsaluk; Rungsit Suwanmonkha; Somchai Pothisan; Somchai Lim-aroom. |
| Experiment on pre-emergence and post-emergence herbicide application for weed control in farmer's field conducted in Ban Yangrak, Khokcharoen district, Lopburi province, during August-November 2008. The experiment laid out in RCB, composed of 10 treatments, with 3 replications. The objective of this experiment was to study on the efficiency of herbicides and their effect on field corn, KSX 4901 variety. The results revealed that weed found in the experiment were purple nutsedge (Cyperus rotundus), wild poinsettia (Euphorbia heterophylla), horse purslane (Portulaca oleracea), tropical spiderwort (Commelina benghalensis), running grass (Brachiaria reptans), and jungle rice (Echinichloa colona). The application of 2,4-D, glufosinate, fluroxypyr and paraquat... |
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Palavras-chave: Field corn; Farmer's field; Herbicides; Weed control; Pre-emergence; Post-emergence; ข้าวโพดเลี้ยงสัตว์; วัชพืช; สารกำจัดวัชพืช; ไร่ข้าวโพดเกษตรกร; การควบคุมวัชพืช; ประสิทธิภาพ; การเจริญเติบโต; ผลผลิต; คุณภาพ. |
| Ano: 2010 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4691 |
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| Registros recuperados: 138 | |
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