|
|
|
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| Zerbato,Cristiano; Furlani,Carlos E. A.; Almeida,Rodrigo F; Voltarelli,Murilo A.; Silva,Vicente F. A.. |
| ABSTRACT Peanut crop (Arachis hypogaea L.) mechanization has been improved over the years; however there are drawbacks that affect the quality of operations. Thus, this article’s objectives were to evaluate the operational performance of the mechanized sowing of peanut crop according to seeding densities (10, 14, and 18 seeds m-1) and seed sizes (21 and 23 mm). It was observed that the seeds of 23 mm had shorter average number of days to emergence and a higher percentage of emergences, occurring the opposite to the seeding density of 18 seeds m-1. The higher the seeding density, the largest was the plant stand, whereas the 23 mm seed obtained the best results and the same with the seeding density of 14 seeds m-1 that had a higher percentage of normal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachis hypogaea L.; Agricultural mechanization; Seeder-fertilizer. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000400711 |
| |
|
|
|
