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首页> 外文期刊>engenharia agricola >CORN SOWING WITH TWO FURROWERS MECHANISMS IN DIFFERENT GRAZING INTENSITIES
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CORN SOWING WITH TWO FURROWERS MECHANISMS IN DIFFERENT GRAZING INTENSITIES

机译：CORN SOWING WITH TWO FURROWERS MECHANISMS IN DIFFERENT GRAZING INTENSITIES

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abstract_textpCrop-livestock integration can be defined as a system that integrates both activities in order to maximize rational land use and minimize production costs. The work aimed to evaluate the sowing of maize with two furrowers mechanisms in a grazing area under different managements on integrated crop-livestock system. The experiment was carried out in a randomized block design with four replicates. The treatments consisted by four combination of grazing intensities (0.25-0.05; 0.30-0.10; 0.35-0.15 m and ungrazed, respectively to the pasture height at the entry and exit of animals from the paddocks) and two furrowers mechanisms (shoe and double disc). Bulk density and soil macroporosity were evaluated post graze, as well as sowing depth, area of mobilized soil, plant stand and corn yield. Areas with highest grazing intensity provided a significant increase in bulk density. The area of mobilized soil was 0.0071 and 0.0103 m(2) for the double disc and rod, respectively, having the rod presented greater sowing depth. For the furrower mechanism of double disc type, the yield decreased linearly with the increase of grazing intensity, and the same was mitigated when the rod was used./p/abstract_text

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