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RESUMO -Objetivou-se com este trabalho estudar os efeitos do consórcio de milho com colonião (Panicum maximum cv. Aruana) na infestação de plantas daninhas e na cultura da soja em rotação. O experimento foi realizado em campo, no período de dezembro de 2008 a abril de 2010, em área experimental da UNESP, campus de Jaboticabal-SP. Utilizou-se o delineamento em blocos ao acaso, com quatro repetições, em esquema de parcela subdividida. Foram estudadas duas formas de semeadura (a lanço e em linha) de colonião nas parcelas e quatro quantidades de sementes (200, 400, 600 e 800 pontos de valor cultural -PVC) nas subparcelas, além de três testemunhas, representadas pelo monocultivo das espécies, como tratamentos adicionais. O cultivo consorciado não afetou o desenvolvimento do milho, comparado ao milho solteiro. Embora na colheita do milho houvesse maior matéria seca e densidade de plantas de colonião com a semeadura de 800 PVC, antes da semeadura da soja o acúmulo de massa não diferiu entre os tratamentos de consórcio. Portanto, a semeadura de 200 PVC de sementes de colonião, a lanço ou em linha, foi suficiente para a manutenção de quantidade (9,1 t ha -1 ) adequada de palha sobre o solo. Antecedendo a semeadura da soja, a infestação de plantas daninhas na testemunha de milho solteiro foi maior do que nos tratamentos de consórcio e nas testemunhas da forrageira solteira (a lanço e em linha). O mesmo foi observado para densidade de plantas daninhas após a instalação da cultura. Os sistemas de consórcio de milho com colonião não interferiram em nenhuma característica avaliada na cultura da soja cultivada em rotação. Da mesma forma, não foi observada diferença entre os tratamentos de consórcios e a testemunha de milho em monocultivo para produção de grãos de soja.Palavras-chave: Glycine max, integração agricultura-pecuária, plantio direto, Zea mays.ABSTRACT -This work aimed to study the effects of corn and colonião grass (Panicum maximum cv Aruana) intercropping on weed infestation and soybean crop in rotation. This research was carried out under field conditions from December 2008 to April 2010 at the UNESP Campus of Jaboticabal, São Paulo, Brazil. The experiment was arranged in a randomized block design in split-plots, with four replications. Two forms of sowing (hand-sowing and on-line sowing) of colonião grass and four amounts of seeds (200, 400, 600, and 800 points of cultural value -PCV) were studied, plus three additional treatments with the single species. Intercropping did not affect vegetative growth and corn yield, when compared to single corn. In the harvest of corn grains, there was more dry matter and plant density of colonião grass when 800 PCV were sown. However, before soybean sowing, dry matter production did not differ between the intercropping treatments. Thus, the sowing of 200 PCV of colonião seeds, hand-sowing and on-line sowing, was sufficient to maintain an adequate amount (9.1 ton ha -1 ) of mulch on the soil. Prior to soybean sowing, weed infestation in the single corn treatment was higher than ...

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This work aims to assist the design of FPGA-based embedded system by extending the AMoDE-RT approach in order to support automatic generation of VHDL descriptions from high-level specification of embedded systems. This paper discusses the handling of non-functional requirements using concepts from Aspect-Oriented Software Development (AOSD) paradigm. The proposed approach promotes the specification of platform-independent aspects in UML/MARTE model, which is later used to generate the system VHDL description. A set of mapping rules has been created to implement the model-level aspects using VHDL constructs/statements. GenERTiCA tool has been extended to allow the UML-to-VHDL automatic transformation, including the weaving of aspects adaptations code into the generated VHDL description. Such an approach allows not only the generation of a fully sinthesizable VHDL description, but also the reuse of aspects in distinct implementation technologies. The obtained results show an increase in system performance and a better utilization of FPGA configurable resources due to the improved components modularization. These results indicate the practicability of full translation of platform-independent aspects into VHDL, opening room for gains in embedded real-time system design, including reuse and design effort reduction.

ABSTRACT. The objective of this study was to evaluate the effects of sowing procedures and the seed sowing rate of kudzu (Pueraria phaseoloides cv. 'Comum') in corn on corn plant development, forage dry matter production, weed infestation and soybean plant development and yield. The kudzu seeds were either broadcasted over the terrain or sown in furrows (in the main plots) at rates, in both cases, of 400, 800, 1200 and 1600 points of cultural value (on the subplots). Singly cultivated corn was considered the control treatment. Intercropping did not cause corn plant development to show any significant difference compared with that of the singly cultivated corn plants. When sown in furrows, the number and dry matter contents of the kudzu plants were higher than sowing by broadcasting. The number of plants and the dry matter of the plants increased with the number of seeds. Prior to sowing soybean, the incidence of weeds decreased as the number of kudzu seeds at sowing increased. The intercropping of corn with kudzu benefited soybean plant population, plant height, and grain yield in comparison with the single cultivating of corn in the previous year.