Results 251 to 260 of about 2,874 (296)
Some of the next articles are maybe not open access.
Precision and accuracy of sward height distributions
African Journal of Range & Forage Science, 1999Double normal distributions can be used to resolve many sward height frequency distributions into two components representing the 'short' (patches) and 'tall' (non∼patches) areas in the sward. The effect of sample size on the precision and accuracy of parameters of sward height distributions was examined by drawing sub-samples (n=10) of increasing ...
C.D. Morris +2 more
openaire +1 more source
Grass and Forage Science, 1997
The influence of sward height at the time of slurry application on sward responses to slurry was investigated using perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) mini‐swards under greenhouse conditions. Pig slurry, cattle slurry and a fertilizer control were applied either to: swards cut 1 d before slurry application to heights of
Wightman, PS, Franklin, MF, Younie, D
openaire +2 more sources
The influence of sward height at the time of slurry application on sward responses to slurry was investigated using perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) mini‐swards under greenhouse conditions. Pig slurry, cattle slurry and a fertilizer control were applied either to: swards cut 1 d before slurry application to heights of
Wightman, PS, Franklin, MF, Younie, D
openaire +2 more sources
Influence of sward height on bite dimensions of horses
Animal Science, 2003AbstractThe management of pastures used by horses poses various problems: swards are often grazed down rapidly, patches of bare ground and refused areas develop. In order to gain a better understanding of the plant-animal interaction behind this problem the influence of sward height on bite dimensions (bite depth, weight, volume, area) of horses was ...
A. Naujeck, J. Hill
openaire +1 more source
Precision Agriculture, 2020
Accurate estimation of herbage mass (HM) is essential for optimising grass utilisation and increasing profit for pasture-based livestock agriculture. The rising plate meter (RPM) is used for predicting HM based on average compressed sward height (CSH).
D. J. Murphy +4 more
openaire +1 more source
Accurate estimation of herbage mass (HM) is essential for optimising grass utilisation and increasing profit for pasture-based livestock agriculture. The rising plate meter (RPM) is used for predicting HM based on average compressed sward height (CSH).
D. J. Murphy +4 more
openaire +1 more source
Sward height controlled by ewe and lamb grazing
Proceedings of the British Society of Animal Production (1972), 1986Previous work has shown that a sward height of 3-5 cm for sheep is the most efficient way of maintaining a balance between new .growth and decayed material. An unreplicated experiment was carrried out during 1985 using 77 cross-bred ewes and their Suffolk x twin lambs to graze a perennial ryegrass sward (Lolium perenne) cv Wendy between 29 April and 22
Margaret S Griffiths, C James
openaire +1 more source
Computers and Electronics in Agriculture, 2013
Graphical abstractDisplay Omitted Combining ultrasonic and spectral data improved predictions of grassland biomass.Enhancements were particularly obvious at high biomass levels.Ultrasonic sward height explained the majority of variance in predicted biomasses.Two-band vegetation indices performed best along slopes of water absorption bands.Increasing ...
Thomas Fricke, Michael Wachendorf
openaire +1 more source
Graphical abstractDisplay Omitted Combining ultrasonic and spectral data improved predictions of grassland biomass.Enhancements were particularly obvious at high biomass levels.Ultrasonic sward height explained the majority of variance in predicted biomasses.Two-band vegetation indices performed best along slopes of water absorption bands.Increasing ...
Thomas Fricke, Michael Wachendorf
openaire +1 more source
Effects of sward height and bulk density on bite dimensions of cattle grazing homogeneous swards
Grass and Forage Science, 1992AbstractEffects of sward height and density on the dimensions and weights of bites taken by cattle were examined. In one experiment, swards of dallisgrass lamina were constructed by hand in a factorial combination of four heights (80, 150, 180 and 300 mm) and three densities (c. 700, 1500 and 2700 g m−3).
E. A. LACA +3 more
openaire +1 more source
Effects of cattle grazing, sheep grazing, cutting and sward height on a grass-white clover sward
The Journal of Agricultural Science, 1981SUMMARYThirteen defoliation treatments were applied to a grass-white clover sward for 2 years to study some effects on the sward of cattle grazing compared with sheep grazing compared with various cutting treatments and to study the effect of height of defoliation.Sheep actively sought out the clover in preference to grass whereas the cattle did not ...
V. M. Briseño De La Hoz, D. Wilman
openaire +1 more source
The fitting of frequency distributions to height measurements on grazed swards
Grass and Forage Science, 1986AbstractHerbage height was measured in ryegrass/white clover (Lolium perenne/Trifolium repens) swards grazed by cattle using the rising plate meter or the sward stick. Ordinary single normal and double normal distributions were fitted to the data obtained. After the first 6 weeks of continuous grazing the double normal distributions fitted data for the
M. J. GIBB, M. S. RIDOUT
openaire +1 more source
Does sward height affect feeding patch choice and voluntary intake in horses?
Applied Animal Behaviour Science, 2009 International audienceThe numbers of horses grazing at pasture are increasing in developed countries, so a proper understanding of their feeding selectivity and of the tactics they use for extracting nutrients fromswards is essential for the management ...
Geraldine Fleurance +2 more
exaly +2 more sources