Zobrazeno 1 - 10
of 181
pro vyhledávání: '"T F Smith"'
Autor:
Donald S. Hubbell, Charles F. Rosenkrans, Kenneth P. Coffey, J. B. Humphry, D. A. Scarbrough, W. K. Coblentz, T. F. Smith, D.H. Hellwig, J. E. Turner, Michael P. Popp, Zelpha B. Johnson
Publikováno v:
Livestock Science. 118:183-194
A number of studies have reported performance by spring-calving cows grazing Neotyphodium -infected fescue [E+, Lolium arundinaceum (Schreb.) Darbysh.], but post-weaning calf performance from the majority of those studies is limited. Furthermore, bot
Autor:
Zelpha B. Johnson, D. A. Scarbrough, J. B. Humphry, Michael P. Popp, T. F. Smith, W. K. Coblentz, J. E. Turner, Donald S. Hubbell, Kenneth P. Coffey
Publikováno v:
Agronomy Journal. 99:747-754
The economic impact of rotation frequency (twice weekly vs. twice monthly until time of weaning) and time of weaning (early April vs. 56 d later) was examined for fall-calving cows using a modified put and take grazing strategy implemented to maintai
Publikováno v:
Australasian Journal of Environmental Management. 14:179-191
Autor:
Donald S. Hubbell, Kenneth P. Coffey, D. L. Kreider, Charles P. West, John A. Jennings, D. H. Hellwig, Charles F. Rosenkrans, T. F. Smith, J. E. Turner, J. B. Humphry, D. A. Scarbrough, W. K. Coblentz, Michael P. Popp, B. C. McGinley
Publikováno v:
Crop Science. 46:1929-1938
A 4-yr trial was initiated in January 2000 to evaluate cow-calf performance on mixed-species pasture systems consisting of (i) endophyte-infected tall fescue (E+; Festuca arundinacea Schreb.) diluted by approximately 50% with common bermudagrass [Cyn
Autor:
Michael P. Popp, D. H. Hellwig, D. L. Kreider, Charles P. West, John A. Jennings, Donald S. Hubbell, Kenneth P. Coffey, D. A. Scarbrough, T. F. Smith, Charles F. Rosenkrans, J. E. Turner, B. C. McGinley, W. K. Coblentz, J. B. Humphry
Publikováno v:
Crop Science. 46:1919-1928
A systems trial was designed to evaluate forage characteristics within mixed-species pastures consisting of (i) endophyte-infected tall fescue (Festuca arundinacea Schreb.; E+) mixed with common bermudagrass [Cynodon dactylon (L.) Pers.] and other fo
Autor:
W. K. Coblentz, Donald S. Hubbell, Kenneth P. Coffey, D. A. Scarbrough, J. B. Humphry, T. F. Smith, R. K. Ogden, J. E. Turner, John A. Jennings
Publikováno v:
Agronomy Journal. 98:1280-1289
‘Common’ and ‘Tifton 44’ bermudagrass [Cynodon dactylon (L.) Pers.] located near Fayetteville and Batesville, AR, respectively, were chosen to evaluate the effects of stockpiling initiation date (August or September), and N fertilization rate
Publikováno v:
The Photogrammetric Record. 9:157-171
The American Landsat earth resource series of satellites is continuously collecting large quantities of data. The extraction of urban growth information in the United Kingdom from these data could be of benefit to planners. This paper is an attempt t
Autor:
J. E. Turner, B. C. McGinley, Charles F. Rosenkrans, D. A. Scarbrough, D. H. Hellwig, Michael P. Popp, Donald S. Hubbell, T. F. Smith, Kenneth P. Coffey, W. K. Coblentz, Zelpha B. Johnson, J. B. Humphry
Publikováno v:
Journal of Animal Science. 83:2684-2695
A grazing study was initiated in April 2000 and continued through three calving and weaning cycles (ending July 2003) to investigate the effects of rotational grazing management (twice monthly [2M] vs. twice weekly [2W]) and weaning date (mid-April [
Autor:
J. B. Humphry, Zelpha B. Johnson, D. A. Scarbrough, J. E. Turner, T. F. Smith, Donald S. Hubbell, Kenneth P. Coffey, K. F. Harrison, W. K. Coblentz
Publikováno v:
Agronomy Journal. 96:538-546
Autumn stockpiling is a management technique in which forage is allowed to accumulate throughout the late summer and early fall for subsequent grazing throughout the late fall and winter. Well-established stands of common and 'Tifton 44' bermudagrass
Publikováno v:
Livestock Environment VI, Proceedings of the 6th International Symposium 2001.
The objective of this study is to develop a simulation model of a ventilation system for a modernswine confinement. The confinement is divided into two zones: the room where the pigs resideand the pit that stores the waste. Two fans located in the si