2009
DOI: 10.1590/s0100-69162009000200007
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Seeder-fertilizer machine: energetic demand as a function of vegetal covering handling and manure deposition shank depth in no-tillage system

Abstract: ABSTRACT:The purpose of this work was evaluating the energetic demand of a seeder-fertilizer machine as a function of the type and handling of vegetal covering culture and of the fertilizer deposition shank depth. A Valtra BM100 tractor was used implemented to pull a high precision seeder-fertilizer machine with four ranks of seeding, spaced 0.9 m for maize culture. Experiment was conducted with design in randomized blocks in factorial plots, in the Laboratory of Machines and Agricultural Mechanization experim… Show more

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Cited by 2 publications
(1 citation statement)
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“…According to Grotta et al (2009), depending on the type of shank and on its angle of attack, there may be greater or smaller soil mobilization, i.e., causing changes in the mobilized volume of soil, leading to possible erosive processes and requiring higher or lower power to penetrate into the soil.…”
Section: Introductionmentioning
confidence: 99%
“…According to Grotta et al (2009), depending on the type of shank and on its angle of attack, there may be greater or smaller soil mobilization, i.e., causing changes in the mobilized volume of soil, leading to possible erosive processes and requiring higher or lower power to penetrate into the soil.…”
Section: Introductionmentioning
confidence: 99%