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Articles by Paulo Fernando Adami
Total Records ( 2 ) for Paulo Fernando Adami
  Evandro Martin Brandelero , Paulo Fernando Adami , Alcir Jose Modolo , Murilo Mesquita Baesso and Adelar Jose Fabian
  Search for greater operating efficiency of seeders via increased speed in sowing operation has caused many problems in soybean plantability which may affect its yield components and final yield. Due to it, this study was carried out with the objective to evaluate a seeder performance under different operating speeds and its relation to soybean cultivars yield components and final yield in a no-till system. Experiment was laid out as a random block design, in a 2×4 factorial scheme, composed of two soybean cultivars and four seeder operating speeds. It was noticed that the seeder operating speed of 9.2 km h–1 caused a reduction of 1.5 cm in the seed sowing depth resulting in an increase of 14% of exposed seeds. Moreover, soil disturbed area at the center of crop row showed an increase of 23.7% reducing so the seed emergence rate at 9.6% day–1, affecting soybean final plant population what resulted in an yield decrease of 20%. The evaluated parameters showed similar results for the 7.7 and 3.4 km h–1 seeder operating speeds, although, the best seeder performance was noticed at the lower operating speeds.
  Vanderson Vieira Batista , Rodrigo Antonio Hossa , Elisa Souza Lemes , Karine Fuschter Oligini , Carlos Andre Barhy and Paulo Fernando Adami
  Background and Objective: In the southern of Brazil, maize is mainly sowed between February and March as a second summer crop after soybean. After maize harvesting, the area undergoes a short fallow period (from July-September), favoring soil erosion and emergence of weeds. In this context, intercropping, cover crops with maize, can minimize these impacts, once after it’s harvesting, these plants are already established in the system. The objective of this study was to evaluate the effect of different methods of cover crops establishment on the development and yield of maize as well as the biomass yield of the cover crop species. Materials and Methods: Experiment was carried out in a randomized complete block design, arranged in a 2×3 factorial scheme, with 4 replications. Factor A was represented by the cover crops (1-Crotalaria spectabilis, 2-Urochloa ruziziensis) and Factor B by the intercrop establishment methods (1-cover crops sowed in the inter-row at the maize sowing, 2-cover crops broadcast before maize sowing, 3-cover crops broadcast at the V6 maize phenological stage). Results: Urochloa ruziziensis showed higher dry mass yield in relation to Crotalaria spectabilis, reaching among establishment methods at the maize harvest time an average of 1,425 and 401 kg DM ha1, respectively. Conclusion: Maize yield was not influenced by cover crops species and methods of establishment. Maize presents a competitive advantage over cover species and cover crops intercropped at maize V6 phenological stage showed very low biomass production and due to it, it is not recommended. Further studies should evaluate intercrop at maize earlier phenological stages (V1 or V2).
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