Full TGIF Record # 40409
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Web URL(s):http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2494.1997.00058.x/epdf
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Author(s):Wright, D. A.; Frost, J. P.; Patterson, D. C.; Kilpatrick, D. J.
Author Affiliation:Agricultural Research Institute of Northern Ireland, Hillsborough, UK, and Department of Agriculture for Northern Ireland, Newforge Lane, Belfast, UK
Title:The influence of weight of ryegrass per unit area and treatment at and after mowing on rate of drying
Source:Grass and Forage Science. Vol. 52, No. 1, March 1997, p. 86-98.
# of Pages:12
Publishing Information:Oxford, Blackwell Scientific Publications
Keywords:TIC Keywords: Lolium perenne; Mowing; Drying
Abstract/Contents:"The rates of drying of perennial ryegrass, subjected to different treatments at mowing and after mowing, were assessed in the field by weight change of grass fresh weight in wire-mesh over 3.5 d (76 h). In a 5^DX3^DX3 factorial experiment design, the effects of five weights of grass per unit area [1.5, 3, 6, 12, and 24 kg fresh material (FM) m⁻¹], three treatments at mowing (no treatment, mower-conditioned, flail-treated) and three treatments after mowing (no treatment, inverted, mixed) were examined. The experiment was replicated twice in 16 occasions in 1992 at the Agricultural Research Institute in Northern Ireland. This gave a total of thirty-two replicates per treatment. The trays were weighed at 2-h intervals from 09.00 to 17.00 h each day. Data sets were restricted to rain-free days and also to the first day after mowing (day 1). On day 1, grass weight per unit area was a major factor dictating dry; reducing the grass weight per unit area was unconditioned grass from 6 to 3 kg FM m⁻¹ increased grass drying rate by 47%. There was no significant (P>0.05) benefit over the untreated grass on day 1 from mixing or turning mower-conditioned or the unconditioned grass. Mising of the flail-treated grass improved drying rate significantly (P>0.001) over the control. Over the whole 76-h period, the relative benefit from either mower conditioning or flail treatment over no treatment was dependent upon both grass weight per unit area and initial dry-matter (DM) concentration. At higher initial DM concentrations (^D#150 g kg ⁻¹) and lower grass weights ( 6 kg FM m⁻²) both mower conditioning using a nylon brush type conditioner and intensive conditioning by flail treatment gave substantial increases in drying over no treatment. Moisture regain of grass exposed to overnight dew was small. Rain had a much greater effect than dew on subsequent moisture regain. Unconditioned grass at 12 kg m⁻² retained 82% less water following rainfall than unconditioned grass at 3 kg m⁻²."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wright, D. A., J. P. Frost, D. C. Patterson, and D. J. Kilpatrick. 1997. The influence of weight of ryegrass per unit area and treatment at and after mowing on rate of drying. Grass Forage Sci. 52(1):p. 86-98.
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    Last checked: 10/02/2015
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