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| Trentin, Robson Gonçalves; Modolo, Alcir José; Vargas, Thiago de Oliveira; Campos, José Ricardo da Rocha; Adami, Paulo Fernando; Baesso, Murilo Mesquita. |
| The heavy traffic of machines in no-tillage systems causes problems as soil compaction and loss of crops productivity. The objective of this paper is to evaluate the productivity of soybeans in reference to furrow openers and the levels of soil compaction in two crops. The experiment was conducted on Rhodic Hapludox by tracing random blocks with subdivided parcels. The soil bulk density levels were laid out in the parcels (1.16, 1.20, 1.22, and 1.26 Mg m-3) and the furrowers in the sub-parcels (double disc and shanks). The resistance to penetration, depth of the furrow, mobilized soil area, final plant stands, height of plants, mean number of beans by pod, 1,000 bean mass, number of pods per plant and productivity of the culture were evaluated. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: No-tillage; Seeder-fertilizer; Soil density.; Mecanização Agrícola. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35015 |
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| Trentin, Robson Gonçalves; Modolo, Alcir José; Vargas, Thiago de Oliveira; Campos, José Ricardo da Rocha; Adami, Paulo Fernando; Baesso, Murilo Mesquita. |
| The heavy traffic of machines in no-tillage systems causes problems as soil compaction and loss of crops productivity. The objective of this paper is to evaluate the productivity of soybeans in reference to furrow openers and the levels of soil compaction in two crops. The experiment was conducted on Rhodic Hapludox by tracing random blocks with subdivided parcels. The soil bulk density levels were laid out in the parcels (1.16, 1.20, 1.22, and 1.26 Mg m-3) and the furrowers in the sub-parcels (double disc and shanks). The resistance to penetration, depth of the furrow, mobilized soil area, final plant stands, height of plants, mean number of beans by pod, 1,000 bean mass, number of pods per plant and productivity of the culture were evaluated. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.03.02-4 no-tillage; Seeder-fertilizer; Soil density. Mecanização Agrícola. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35015 |
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| Habitzreiter, Tiago Luis; Adami, Paulo Fernando; Brun, Eleandro José; Batista, Vanderson Vieira; Ferreira, Michael Luiz; Giacomel, Cleverson Luiz. |
| A crescente demanda por fontes alternativas de energia tem se demostrado uma tendência mundial. Diante do exposto, objetivou-se com o presente trabalho avaliar o poder calorífico das diferentes frações de biomassa de Eucalyptus grandis e E. urophylla aos 60 meses de idade e analisar a viabilidade econômica do aproveitamento total ou parcial da biomassa, visando geração de energia. Para isso determinaram-se o poder calorífico superior, poder calorífico inferior, teor de cinzas e carbono orgânico dos compartimentos madeira, galhos, casca e folhas. Quanto ao poder calorífico (PC), a folha apresentou valores superiores as demais frações avaliadas, com 4.904 kcal kg-1, seguidas dos galhos com 4.290 kcal kg-1, madeira com 4.126 kcal kg-1 e casca, com menor PC... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/21822 |
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