Brushcutters use different cutting tools with variations in operating capacity. Thus, the present study evaluate the effective operational capacity of a brushcutter equipped with different cutting tools in different areas of plant cover. It was subdivided into three experiments with 44 replicates of 4m2 each. The first was carried out in an area with plants cover with wheat and ryegrass, with blades of triple a...
The use of side brushcutters exposes users to vibration and noise, which can cause damage to the operator, as they act as a stressor agent. Excessive vibration is responsible for countless disorders, including Raynaud’s syndrome. This study aimed to assess the effect of the vibrations of a side brush cutter on the human body. A side brush cutter was used with three cutting implements (double blade, triple blade...
The increasing use of chainsaws in rural areas has demanded the health of rural producers who operate these machines. Thus, the objective of this work was to evaluate the conservation conditions of chainsaws with a 2-stroke Otto Cycle engine and check if they meet NR12 Annex V, as well as confirm whether users meet NR31 in terms of training for use. With the aid of a questionnaire and visits to farms, 103 chain...
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Aiming to develop studies relating laboratory spectroradiometry with macro and micronutrients contents of vegetative materials of forest populations of Eucalyptus grandis W Hill ex Maiden, of different ages, an experimental área was selected for the study at the Fundação Estadual de Pesquisas Agropecuárias FEPAGRO FLORESTAS, at Santa Maria, Rio Grande...
The objective of this study was to evaluate the performance of different spectral indices - MCARI705, R750/R700, R750/R550 and MTCI - in the description of chlorophyll seasonal dynamics in detached leaves of Eucalyptus grandis in four seasons. The study was conducted in three plots of 600 m2, in a 20 months old stand. We collected 15 leaves from three layers of canopy, totalizing 45 leaves for each season. It w...
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; The moblie technology applicability to precision silviculture activities on planted forests involves the mapping, inventory and geostatistics. The objective of this research is to demonstrate the móbile technology potentiality in activities of precision silviculture. The precision of forested áreas surveys with GPS equipment integrated with Pocket PC ...