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| Forte,Cesar Tiago; Galon,Leandro; Beutler,Amauri Nelson; Basso,Felipe José Menin; Nonemacher,Felipe; Reichert Júnior,Francisco Wilson; Perin,Gismael Francisco; Tironi,Siumar Pedro. |
| Abstract: The objective of this work was to evaluate the density and composition of the soil weed seed bank when bean, corn, and soybean are cultivated in the no-tillage system (NTS) in rotation with winter cover crop species and in the conventional tillage system (CTS). The experiment was installed in a complete randomized block design with three replicates. The evaluation of the seed bank was performed on soil samples (0-10 and 10-20 cm) in four points of each experimental unit, at 15, 30, 60, and 90 days of cultivation. Bean, corn, and soybean crops were sown in the NTS with different soil cover crops in rotation, as well as in the CTS. The NTS provided a more dense and abundant soil seed bank of the species Gnaphalium spicatum and Oxalis corniculata... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena strigosa; Raphanus sativus; Vicia sativa; Conventional tillage system; No-tillage system. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400435 |
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| Galon,Leandro; Basso,Felipe José Menin; Chechi,Leonardo; Pilla,Thalita Pedrozo; Santin,Carlos Orestes; Bagnara,Maico André Michelon; Franceschetti,Milena Barretta; Castoldi,Camile Thaís; Perin,Gismael Francisco; Forte,César Tiago. |
| ABSTRACT The study of weed interference periods and the economic threshold level (ETL) of weeds on crops allows the adoption of management methods and the rationalized use of herbicides. The objective of this study was to determine the periods of interference and to test mathematical models to determine the economic threshold level of ryegrass in the wheat crop. Two experiments were carried out in a randomized block design with four replications. The first experiment was conducted in the 2014/2015 agricultural season. The periods of interference and control of ryegrass were studied in wheat. The periods of interference and/or control were: 0, 10, 20, 30, 40, 50 and 120 days after emergence (DAE). The second experiment was conducted in the 2016/2017... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Lolium multiflorum; Competition. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300409 |
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