Grass and Forage Science EDITED BY O. R. JEWISS VOLUME 54, 1999 The Journal of the British Grassland Society The Official Journal of the European Grassland Federation published by Blackwell Science Oxford London Edinburgh Boston Melbourne Berlin Paris Vienna Tokyo © 1999 Blackwell Science 23 Ainslie Place, Edinburgh EH3 6AJ 25 John Street, London WCIN 2Bl Osney Mead, Oxford OX2 OEI Blackwell Science Asia Ltd, 54 University Street (PO Box 378), Carlton South, Victoria 3053 Australia Blackwell Science France, 10 rue Casimir Delavigne 75000, Paris, France Blackwell Wissenschafts-Verlag GmbH, Kurfiirstendamm 57, 10707 Berlin, Germany Blackwell Science KK, MG Kodenmacho Building, 10 Kodenmacho Nihombashi, Chuo-ku, Tokyo 104, Japan Blackwell Science Inc, Commerce Place, 350 Main Street, Malden, MA 02148-5018, USA Authorization to photocopy items for internal personal use, or the internal or personal use of sp¢ clients, is granted by Blackwell Science for lib and other users registered with the Copyrigh ance Center (CCC) Transactional Reporting provided that the base fee of $14.00 per copy directly to CCC, 222 Rosewood Drive, Suite Danvers, MA 01923, USA. Special requests shoul addressed to the Editor. 0142-5242/99 $14.00 The Blackwell Science logo is a trademark of Blackwe Science Ltd, registered at the United Kingdom Marks Registry. ISSN 0142-5242 Typeset in Madras, India, by SPS Ltd. Printed in Great Britain by Whitstable Litho, Whits Contents of volume Volume 54, Number lI, March 1999 l ‘jaan: Bl]a cksa tock,2 C. A. RSipmeeesn, D1 . P. Streivese ns 62 M. Kelman, R. N. Oram andJ . E. Hayes R. G. Jefferson, Reh i R>o 4b e}- rtson+4, J. MMaarcckkii ntosh ] aandd Characterization, establishment and _ persistence J. J. Hopkins under grazing of nitrous oxide-induced octoploid DI The extent of semi-natural grassland communities Phalaris aquatica L. in lowland England and Wales: a review of conservation surveys, 1978-96 Bailey and A. S. Laidlaw The interactive effects of phosphorus, potassium, R. L. M. Schils, Th. V Vellinga and T. Kraak me and molybdenum on the growth and mor- Dry-matter yield and herbage quality of a perennial phology of white clover (Trifolium repens L.) at ryegrass/white clover sward in a rotational grazing establishment and cutting system _ C. C. Bahler, W. L. Stout, K. T. Leath and L. Wu and M. B. McGechan Hoffman = Simulation of nitrogen uptake, fixation and leach- iI 1e establishment of alfalfa into different maize ing in a grass/white clover mixture residues by conservation-tillage and its effect on insect infestation K. A. B. Logan and R. J. Thomas Interactions between N supply and N uptake by Vachendorf, B. Ingwersen and F. Taube perennial ryegrass, ‘°N recovery and soil pH for Prediction of the clover content of red clover- and four acid Scottish soils white clover-grass mixtures by near-infrared reflectance spectroscopy (Research Note) P. Martiniello Effects of irrigation and harvest management on Aldana, B. Garcia dry-matter yield and seed yield of annual clovers Garcia Ciudad grown in pure stand and in mixtures with ‘he infection of Festuca rubra by the fungal endo- graminaceous species in a Mediterranean envi- te Epichloé festucae in Mediterranean permanent ronment asslands (Research Note) Volume 54, Number 2, June 1999 9 [ l] Leafe D. Maa cer Dr E. K. Woodford an appreciation in the population of germinated seed JR. B T"a4l))l owi, n aantd RR.P G Jefferson pasture during and after a_ pastoral Hay production from lowland semi-natural grass- lands: a review of implications for ruminant live- stock systems D. A. McGilloway rity of damage to Trifolium repens leaves C. S. Mayne and D by certain invertebrate species in mixed The relationship between level of sward height perennial ryegrass/white clover swards: response reduction of a rotationally grazed sward and short- to cultivar, cutting frequency and sward character- term intake rates of dairy cows istics 1999 Blackwell Science Ltd. Grass and Forage Science, 54, iii-v iit] Contents of volume 144 J. P. Frost and R. C. Binnie grassland and impact on hay production in The effect of mechanical treatment on the drying Environmentally Sensitive Areas in the UK rates of Italian and perennial ryegrasses H. D. Karsten and ¢ 55 G. C. Lewis and R. O. Clements White clover growth ns during the grazing Effect of combined insecticide and fungicide treat- season in a rotation -d dairy pasture in mentso n newly sown swardso f Italian and perennial New York ryegrass using two methods of sowing, two rates of seed and N fertilizer, with and without herbicide G. Colombari, G. Bor Comparison of lucerne silage and ventilated hay in A. Hopkins, R. F. Pywell, S. Peel, R. H. Johnson and maize silage-based rations fo1 dairy cows for the P. J. Bowling production of milk destin: r Grana cheese Enhancement of botanical diversity of permanent Volume 54, Number 3, September 1999 195 J. Schellberg, B. M. Moseler, W. Kuhbauch and 248 C. J. Watson and I. F. Rademacher Change in the balance of ammonium-N and Long-term effects of fertilizer on soil nutrient nitrate-N content in so r grazed grass swards concentration, yield, forage quality and floristic over 7 years composition of a hay meadow in the Eifel mountains, Germany The effect of N and | ilizer application and P. M. Haigh botanical compositiotr the leaf/stem ratio Effluent production from grass silages treated with : ag ae 2 : patterns in spring il I n meadows additives and made in large-scale bunker silos Owen, M. K. Theodorou, E. A. Butler and Bovine faeces as a source of micro-organisms fo -hotosynthetic charac f perennial ryegrass the in vitro digestibility assay of forages and red fescue turf vars J. M. Wilkinson, J. Hill and J. D. Leaver S. Shite 1ge} Effect of swath treatment on water loss during The influence of fe1 ogen, white clovet field-wiltingé and on feeding‘ value of pi erennial conteenet ea nd eee V ; H Ss onsak "tactha e nvait trate— Ary vReoerpae at SlO-1i aatgese content t of { perenni nd ryegrass/white clover swards L. E. R. Dawson, C. P. Ferris, R F. J. Gordon and D. J. Kilpatrick ‘s P “Tas ? , . 300k Revi VW The effects of wilting grass before ensiling on silage intake Volume 54, Number 4, December 1999 IRT AF Golightltlyy aJi C CH James Kenneth Nelson — an appreciation Sodium fertilize: al © pasture. 8. Turn- over and defoliatior 289 H. Perez, S. Bravo, V. Ongaro, A. Castagnaro, L. Garcia Seffino and E. Taleisnik 312 P C. Chiy 1. Ave 1. C. Phillips Chloris gayana cultivars: RAPD polymorphism and Sodium fertilizer ay O pasture. 9. The field performance under salinity effects of combined or separate applications of 1999 Blackwell Science Ltd Forage Science, 54, iii-v Contents of volume sodium and sulphur fertilizers on herbage compo- 357 E. D. Ungar and N. Ravid sition and dairy cow production Bite horizons and dimensions for cattle grazing herbage to high levels of depletion A. Hameleers, K. A. Leach, N. W. Offer and D. J. Roberts The effects of incorporating sugar beet pulp with »5 B. Cagas, M. Flieger and J. Olsovska forage maize at ensiling on silage fermentation and Concentration of ergot alkaloids in Czech ecotypes effluent output using drum silos of Lolium perenne and Festuca pratensis (Research Note) R. Lindner, M. Lema and A. Garcia Ecotypic differences and performance of the genet- pee Fo _ J. F. Jia, J. B. Wang and B. T. Niu ic resources of cocksfoot (Dactylis glomerata L.) in Changes in isoenzymes and amino acids in forage north-west Spain and germination of the first post-flight generation of seeds of three legume species after space flight A. Herndndez Garay, C. Matthew and J. Hodgson (Research Note) Tiller size/density compensation in perennial ryegrass miniature swards subject to differing 6 Author Index defoliation heights and a proposed productivity 79 List of Referees index BGS Council 1999-2000 1999 Blackwell Science Ltd, Grass and Forage Science, 54, iii—v