Seeder-fertilizer performance with two furrowing mechanisms and sowing speed
| Autor: | Antonio Luiz Viegas Neto, Cristiano Márcio Alves de Souza, Sálvio Napoleão Soares Arcoverde, Izidro dos Santos de Lima Junior, Lígia Maria Maraschi da Silva Piletti |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Revista Agrogeoambiental, Vol 12, Iss 2 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2316-1817 1984-428X |
| DOI: | 10.18406/2316-1817v12n220201447 |
| Popis: | The displacement velocity of the tractor-seeder set, associated with the furrowing mechanism, influences the plant distribution and the establishment of a correct plant stand in the field. The objective of this study was to evaluate the operational performance of a seeder-fertilizer in the non-tillage sunflower crop, according to sowing speeds and furrow mechanisms. The experimental design used was the randomized blocks, with treatments arranged in a split-plot scheme, where the plots were the furrowing mechanisms (chisel openers and double disk) and the subplots were the sowing speeds (3.2; 4.6; 6.2 and 7.0km h-1), with three replicates. The following were determined in this study: the emergence speed index, the emergence in the field, the average distance between the plants, plant height, plant population and the longitudinal distribution of plants. Sunflower sowing using a chisel openers provides greater emergence in the field, emergence speed index and, consequently, greater plant population. Sowing speed ranging from 3.2 to 7.0km h-1 do not influence field emergence, emergence speed index, height and population of sunflower plants. |
| Databáze: | Directory of Open Access Journals |
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