Effects of spring fertilizer nitrogen and sward height on production from perennial ryegrass/white clover swards grazed by beef cattle

Grass and Forage Science

Volumn 52, Issue 3, 1997, Pages 322-324

  Johnson, R H ^a   Morrison, J ^b  

^a ABERYSTWYTH UNIVERSITY   (United Kingdom)

^b NONE

Author keywords

[No Author keywords available]

Indexed keywords

CATTLE; FERTILIZATION; LIVEWEIGHT GAIN; PERENNIAL RYEGRASS; SWARD HEIGHT; WHITE CLOVER;

ENGLAND; UK;

BOS TAURUS; FABACEAE; FRIESIA; LOLIUM PERENNE; POACEAE; TRIFOLIUM REPENS;

EID: 0031459531     PISSN: 01425242     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1365-2494.1997.tb02362.x     Document Type: Article

References (10)

1. DENNIS W.D. and WOLEDGE J. (1985) The effect of nitrogenous fertilizer on the photosynthesis and growth of white clover-perennial ryegrass swards. Annals of Botany, 55, 171-178.
2. FRAME J. and BOYD A.G. (1987a) The effect of fertilizer nitrogen rate, white clover variety and closeness of cutting on herbage productivity from perennial ryegrass/white clover swards. Grass and Forage Science, 42, 85-96.
3. FRAME J. and BOYD A.G. (1987b) The effect of strategic use of fertilizer nitrogen in spring and/or autumn on the productivity of a perennial ryegrass-white clover sward. Grass and Forage Science, 42, 429-438.
4. FRAME J. and NEWBOULD P. (1986) Agronomy of white clover. Advances in Agronomy, 40, 1-88.
5. GIBB M.J., BAKER R.D. and SAYER A.M.E. (1989) The impact of grazing severity on perennial ryegrass/white clover swards stocked continuously with beef cattle. Grass and Forage Science, 44, 315-328.
6. HARROD T.R. (1981) The Soils of North Wyke and Rowden. Rothamsted: Soil Survey of England and Wales.
7. LAIDLAW A.S. (1984) Quantifying the effect of nitrogen fertilizer applications in spring on white clover content in perennial ryegrass-white clover swards. Grass and Forage Science, 39, 317-321.
8. MAXWELL T.J. and TREACHER T.T. (1986) Decision rules for grassland management. In: Pollott G.E. (ed.) Efficient Sheep Production From Grass, Occasional Symposium no. 21, British Grassland Society pp. 67-78.
9. MICHELL P. and LARGE R.V. (1983) The estimation of herbage mass of perennial ryegrass swards: A comparative evaluation of a rising-plate meter and a single probe capacitance meter calibrated at and above ground level. Grass and Forage Science, 38, 295-299.
10. WILKINS R.J., GIBB M.J. and HUCKLE C.A. (1995) Lactation performance of spring-calving dairy cows grazing mixed perennial ryegrass/white clover swards of differing composition and height. Grass and Forage Science, 50, 199-208.