Results 221 to 230 of about 20,560 (258)

Growth dynamics and accumulation of forage mass of forage cactus clones as affected by meteorological variables and water regime

European Journal of Agronomy, 2021
Abstract Comprehending the relation between climatic variables and the productive and morphological characteristics of the forage cactus is essential to the adjustment of the management of its production in different agro-climatic areas. The aim of this study was to evaluate the interrelationship between the meteorological variables and the water ...
George Do Nascimento Araújo Júnior, Alexandre Maniçoba Da Rosa Ferraz Jardim, Marcelo JOSÉ da Silva   +2 more
exaly   +2 more sources

Automating Measurement of Forage Mass in Pasture

Forage & Grazinglands, 2007
Measuring forage mass (FM) is crucial in grazed pastures, but the process is labor intensive. Several indirect methods of estimating standing FM are used, but all require a large number of observations for an adequate sample. One popular technique relates FM to height of a disk or plate compressing the forage beneath.
J. L. Moyer, M. D. Schrock
openaire   +1 more source

Capacitance Sensor for Forage Mass Determination

International Conference on Crop Harvesting and Processing, 2007 (electronic only), 2007
Non-contacting methods for material properties determination and crop yield determination are the best solution especially for rough conditions in agriculture, however, it requires reliable and durable sensors as a source of primary data. The capacitance sensor based technique can be used for forage material mass determination in order to utilize ...
null Zdenek Kviz, null Frantisek Kumhala, null Vaclav Prosek   +2 more
openaire   +1 more source

Observer Variability for Disk Meter Measurements of Forage Mass

Agronomy Journal, 1992
AbstractInconsistency among research workers in estimating forage mass in grazing experiments would limit the value of forage mass estimates, but this problem has not been thoroughly examined. A study was conducted to determine variation among observers in using the disk meter to measure forage mass on tall fescue [Festuca arundinacea (L.) Schreb ...
G E Aiken, D I Bransby
exaly   +2 more sources

Seasonal Variation in the Rising Plate Meter Calibration for Forage Mass

Agronomy Journal, 2012
Measurement of forage mass is critical to the management of forage allowance in grazing systems. The rising plate meter (RPM) was developed to monitor forage mass quickly and easily; however, it must be calibrated to provide reliable calculations of forage mass and the calibration coefficients may vary across seasons.
Renata L G Nave, R Mark Sulc
exaly   +2 more sources

Bat flight-muscle mass: implications for foraging strategy

Australian Journal of Zoology, 2004
The primary flight muscles of the chest, shoulder, back and upper arms were weighed for 29 species of Australian bat, representing two suborders and six families. Values of muscle masses were found to be between 9 and 23% of the mass of the bat ( m bat) and aligned into three statistically distinct classes that relate foraging strategy with morphology ...
R. D. Bullen, N. L. McKenzie
openaire   +1 more source

Correcting Measurements of Pasture Forage Mass by Vacuuming the Stubble

Agronomy Journal, 2002
Estimates of forage mass in pasture obtained by harvesting small plots may be too low because fragments of the harvested herbage are dropped into the stubble and not recovered. Our objective was to evaluate stubble vacuuming as a means of retrieving such material, thereby improving the accuracy of forage mass estimation.
Lori J. Unruh, Gary W. Fick
openaire   +1 more source

Foraging costs as a defining factor for growth and asymptotic mass

Bulletin of Mathematical Biology, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stöcker, Sabine, Weihs, Daniel
openaire   +2 more sources

Forage Mass Production, Forage Nutritive Value, and Cost Comparisons of Three‐Way Cover Crop Mixes

Crop, Forage & Turfgrass Management, 2018
Core Ideas Oat/radish/clover and oat/turnip/clover are the lowest cost for tonnage and energy. Cover crop mixes differ in protein but exceed requirements for cattle needs. Cover crop mixes differ in fiber, but no effect on cattle intake is expected. Biomass production in wetter and hotter environments results in slightly more tonnage. The use of annual
Jaymelynn K. Farney, Gretchen F. Sassenrath, Cathryn J. Davis, Deann Presley   +3 more
openaire   +1 more source

The regulatory mechanism in mass foraging and the recruitment of soldiers inPheidole

Insectes Sociaux, 1970
Observations of the recruitment behaviour ofPheidole within the nest reveal the existence of a complex behavioural mechanism which operates in the recruitment of nestmates, including the soldiers, to mass foraging. Highly excited recruiters, arriving at the nest, perform, in addition to trail-laying, a motor recruitement display comprising running ...
openaire   +1 more source