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| Corrêa, Marciabela Fernandes; Navroski, Renan; Gomes, Aline Duarte; Gazolla Neto, Alexandre; Nadal, Ariele Paula; Flores, José Henrique Nunes; Vergara, Rafael de Oliveira; Gadotti, Gizele Ingrid; Schuch, Luis Osmar Braga. |
| The need to rationalize the use of fertilizers and other chemicals, and financial resources has generated, increasingly, research in order to describe the spatial variability of soil properties in crops. This study aimed to study the spatial organization of soil properties in a wheat seed production field in an area of 11 ha in Lavras do Sul, RS, Brazil. Collecting soil four subsamples for chemical analysis and 10 for compression using a 100m X 100m grid by sampling was performed. Descriptive analysis and geostatistical was performed to characterize the samples and identify the spatial dependence of the studied attributes. From the results obtained maps were drawn by "Agricultural System CR-Campeiro 7" software. The greater variability checked by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultura de precisão; Geoestatística; Triticum aestivum L.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/15845 |
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| Guadagnin, Cristina Mayumi Ide; Schuch, Luis Osmar Braga; Venske, Eduardo; Zimmer, Paulo Dejalma; Aumonde, Tiago Zanatta. |
| This study aimed to evaluate the early growth stages of irrigated rice (Oryza sativa L.) seedlings from cultivars SCS-112, BRS-7 Taim, BR IRGA 410 and IRGA 417, under three different temperatures, i.e. 15, 20 and 25 °C, as a result of seed imbibition in a gibberellic acid (GA3) solution at concentrations of zero, 150, 300, 450, 600 and 750 mg L-1. The lengths of the shoot and the primary root of seedlings were recorded at three, seven and 21 days from sowings on germination paper. Interactions between the main factors were observed for all the response variables. Rice cultivars have differential sensitivity to variation in the concentration of gibberellic acid on seed treatment according to the temperature and the time of evaluation. Cultivar BRS-7 Taim... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental stress; Growth regulators; Oryza sativa L.; Seed vigor.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14299 |
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