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Acoustic parameters of courtship and human-directed friendly vocalisations in seven species of Neotropical deer in captivity
(2020-06-01)
Context: Polygynous deer rut vocalisations have been found to be highly conspicuous, typical of the species and important in sexual selection. Information about vocalisations is not available for Neotropical species ...
Ticks associated with wild animals in the Nhecolândia Pantanal, Brazil
(2000-12-01)
A study of ticks associated with wild animals was carried out from September 1996 to April 1998 at the Fazenda Alegria (21,000 ha), in the Nhecolândia Pantanal, State of Mato Grosso do Sul, Brazil, a sunken plain bordering ...
Does the applied gauge-wheel loads have influence on seeding depth and soil structure?
(2021-01-01)
The inadequate use of farming machinery could have negative impacts on soil structure and crop growth. During planting, a row-unit downforce system is used to reach and maintain a target seeding depth by applying downward ...
Variability of gauge-wheel loads resulting from a hydraulic downforce system and the impacts on corn seeding depth and emergence
(2021-01-01)
The quality and efficiency of agricultural operations is a function of how the machinery and implements are performing. Current hydraulic downforce systems on the market could work using two operational modes, static and ...
The sugar cane vegetal residues unloaded in the sugar mill: Operational costs and physical characteristics
(2004-12-01)
Brazil produced in 2002/03 season 317.87×106tons of sugar cane stalks and 36.88×106tons of vegetal residues (green leaves, dry leaves and tops) in a planted area of 4.61×106 hectares (ha). These residues have a useful heat ...