Comparação entre métodos de perdas na colheita mecanizada de soja

The soybean is of great importance in the Brazilian agricultural scenario and both productivity and the area cultivated to each crop are increasing, demanding more speed and quality at harvest. However, losses are recorded in the mechanical harvesting of soybeans, a fundamental stage in the production process of field crops. Looking to quantify these losses was used in this study display a loss, and results were compared with the losses collected manually. Data were collected at Fazenda São Luiz, in the city of Santa Juliana - MG, with a harvester dual-rotor axial, with a platform of 9.14 m. We assessed 40 points in the day and night periods, and the variables: water content of grains, travel speed, plant height, height of first pod, grain yield, losses due to disability at the time of cutting, trail system, cleaning system and total grain losses and losses in the separation of clean grain. The soybean harvest at night had higher levels of coincidence between the obtained sensor separation and the losses measured in the field, while during the day there was a better match for the sensor track. Losses of grain deficiency in cutting height contribute largely to the loss of soybeans at harvest during the day, reducing the correlation between the losses estimated in the field and the losses obtained from the sensors.A cultura da soja é de grande importância no cenário agrícola brasileiro e tanto a produtividade quanto a área cultivada vêm aumentando a cada safra, exigindo cada vez mais rapidez e qualidade na colheita. Porém, perdas consideráveis são contabilizadas na colheita mecanizada, etapa fundamental no processo produtivo das grandes culturas. Procurando quantificar estas perdas utilizou-se no presente trabalho um monitor de perdas interno Intelliview, cujos resultados foram comparados com as perdas coletadas manualmente. Os dados foram obtidos na Fazenda São Luiz, localizada no município de Santa Juliana – MG, com uma colhedora axial de duplo rotor, com plataforma de corte de 9.14 m de largura. Foram avaliados 40 pontos, nos períodos noturno e diurno, sendo as variáveis analisadas: teor de água dos grãos; velocidade de deslocamento; altura de plantas; altura de inserção da primeira vagem; produtividade de grãos; perdas por deficiência na altura de corte, no sistema de trilha, sistema de limpeza e total; perdas de grãos na separação e perdas de grãos limpos. A colheita de soja no período noturno apresentou maior semelhança entre os níveis de obtidos no sensor de separação e as perdas medidas em campo, enquanto que no período diurno houve maior aproximação para o sensor de trilha. As perdas de grãos por deficiência na altura de corte contribuem em grande parte para as perdas de grãos de soja durante a colheita no período diurno, diminuindo a correlação entre as perdas avaliadas no campo e os níveis de perdas obtidos nos sensores

A systematic review of the role of vitamin insufficiencies and supplementation in COPD

<p>Abstract</p> <p>Background</p> <p>Pulmonary inflammation, oxidants-antioxidants imbalance, as well as innate and adaptive immunity have been proposed as playing a key role in the development of COPD. The role of vitamins, as assessed either by food frequency questionnaires or measured in serum levels, have been reported to improve pulmonary function, reduce exacerbations and improve symptoms. Vitamin supplements have therefore been proposed to be a potentially useful additive to COPD therapy.</p> <p>Methods</p> <p>A systematic literature review was performed on the association of vitamins and COPD. The role of vitamin supplements in COPD was then evaluated.</p> <p>Conclusions</p> <p>The results of this review showed that various vitamins (vitamin C, D, E, A, beta and alpha carotene) are associated with improvement in features of COPD such as symptoms, exacerbations and pulmonary function. High vitamin intake would probably reduce the annual decline of FEV1. There were no studies that showed benefit from vitamin supplementation in improved symptoms, decreased hospitalization or pulmonary function.</p

Comparação entre métodos de perdas na colheita mecanizada de soja

The soybean is of great importance in the Brazilian agricultural scenario and both productivity and the area cultivated to each crop are increasing, demanding more speed and quality at harvest. However, losses are recorded in the mechanical harvesting of soybeans, a fundamental stage in the production process of field crops. Looking to quantify these losses was used in this study display a loss, and results were compared with the losses collected manually. Data were collected at Fazenda São Luiz, in the city of Santa Juliana - MG, with a harvester dual-rotor axial, with a platform of 9.14 m. We assessed 40 points in the day and night periods, and the variables: water content of grains, travel speed, plant height, height of first pod, grain yield, losses due to disability at the time of cutting, trail system, cleaning system and total grain losses and losses in the separation of clean grain. The soybean harvest at night had higher levels of coincidence between the obtained sensor separation and the losses measured in the field, while during the day there was a better match for the sensor track. Losses of grain deficiency in cutting height contribute largely to the loss of soybeans at harvest during the day, reducing the correlation between the losses estimated in the field and the losses obtained from the sensors.A cultura da soja é de grande importância no cenário agrícola brasileiro e tanto a produtividade quanto a área cultivada vêm aumentando a cada safra, exigindo cada vez mais rapidez e qualidade na colheita. Porém, perdas consideráveis são contabilizadas na colheita mecanizada, etapa fundamental no processo produtivo das grandes culturas. Procurando quantificar estas perdas utilizou-se no presente trabalho um monitor de perdas interno Intelliview, cujos resultados foram comparados com as perdas coletadas manualmente. Os dados foram obtidos na Fazenda São Luiz, localizada no município de Santa Juliana � MG, com uma colhedora axial de duplo rotor, com plataforma de corte de 9.14 m de largura. Foram avaliados 40 pontos, nos períodos noturno e diurno, sendo as variáveis analisadas: teor de água dos grãos; velocidade de deslocamento; altura de plantas; altura de inserção da primeira vagem; produtividade de grãos; perdas por deficiência na altura de corte, no sistema de trilha, sistema de limpeza e total; perdas de grãos na separação e perdas de grãos limpos. A colheita de soja no período noturno apresentou maior semelhança entre os níveis de obtidos no sensor de separação e as perdas medidas em campo, enquanto que no período diurno houve maior aproximação para o sensor de trilha. As perdas de grãos por deficiência na altura de corte contribuem em grande parte para as perdas de grãos de soja durante a colheita no período diurno, diminuindo a correlação entre as perdas avaliadas no campo e os níveis de perdas obtidos nos sensores

Comparison between methods of evaluation of soybean mechanized harvesting losses

he soybean is of great importance in the Brazilian agricultural scenario and both productivity and the area cultivated to each crop are increasing, demanding more speed and quality at harvest. However, losses are recorded in the mechanical harvesting of soybeans, a fundamental stage in the production process of field crops. Looking to quantify these losses was used in this study display a loss, and results were compared with the losses collected manually. Data were collected at Fazenda São Luiz, in the city of Santa Juliana - MG, with a harvester dual-rotor axial, with a platform of 9.14 m. We assessed 40 points in the day and night periods, and the variables: water content of grains, travel speed, plant height, height of first pod, grain yield, losses due to disability at the time of cutting, trail system, cleaning system and total grain losses and losses in the separation of clean grain. The soybean harvest at night had higher levels of coincidence between the obtained sensor separation and the losses measured in the field, while during the day there was a better match for the sensor track. Losses of grain deficiency in cutting height contribute largely to the loss of soybeans at harvest during the day, reducing the correlation between the losses estimated in the field and the losses obtained from the sensors

Comparação entre métodos de perdas na colheita mecanizada de soja

The soybean is of great importance in the Brazilian agricultural scenario and both productivity and the area cultivated to each crop are increasing, demanding more speed and quality at harvest. However, losses are recorded in the mechanical harvesting of soybeans, a fundamental stage in the production process of field crops. Looking to quantify these losses was used in this study display a loss, and results were compared with the losses collected manually. Data were collected at Fazenda São Luiz, in the city of Santa Juliana - MG, with a harvester dual-rotor axial, with a platform of 9.14 m. We assessed 40 points in the day and night periods, and the variables: water content of grains, travel speed, plant height, height of first pod, grain yield, losses due to disability at the time of cutting, trail system, cleaning system and total grain losses and losses in the separation of clean grain. The soybean harvest at night had higher levels of coincidence between the obtained sensor separation and the losses measured in the field, while during the day there was a better match for the sensor track. Losses of grain deficiency in cutting height contribute largely to the loss of soybeans at harvest during the day, reducing the correlation between the losses estimated in the field and the losses obtained from the sensors.A cultura da soja é de grande importância no cenário agrícola brasileiro e tanto a produtividade quanto a área cultivada vêm aumentando a cada safra, exigindo cada vez mais rapidez e qualidade na colheita. Porém, perdas consideráveis são contabilizadas na colheita mecanizada, etapa fundamental no processo produtivo das grandes culturas. Procurando quantificar estas perdas utilizou-se no presente trabalho um monitor de perdas interno Intelliview, cujos resultados foram comparados com as perdas coletadas manualmente. Os dados foram obtidos na Fazenda São Luiz, localizada no município de Santa Juliana – MG, com uma colhedora axial de duplo rotor, com plataforma de corte de 9.14 m de largura. Foram avaliados 40 pontos, nos períodos noturno e diurno, sendo as variáveis analisadas: teor de água dos grãos; velocidade de deslocamento; altura de plantas; altura de inserção da primeira vagem; produtividade de grãos; perdas por deficiência na altura de corte, no sistema de trilha, sistema de limpeza e total; perdas de grãos na separação e perdas de grãos limpos. A colheita de soja no período noturno apresentou maior semelhança entre os níveis de obtidos no sensor de separação e as perdas medidas em campo, enquanto que no período diurno houve maior aproximação para o sensor de trilha. As perdas de grãos por deficiência na altura de corte contribuem em grande parte para as perdas de grãos de soja durante a colheita no período diurno, diminuindo a correlação entre as perdas avaliadas no campo e os níveis de perdas obtidos nos sensores