DBPapers
DOI: 10.5593/SGEM2014/B41/S17.054

PRODUCTIVITY AND YIELD QUALITY OF WHITE CLOVER - GRASS MIXED SWARDS DEPENDING ON CUTTING FREQUENCY

A. Adamovics
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 417-424 pp

ABSTRACT
In long-term field trials the productivity, coexistence, persistency and dynamics of crude protein (CP) content of white clover cv. ‘Priekulu 61’ grown in binary- and multi-component swards in mixtures with 13 grass species have been studied on sod calcareous soils and sod-podzolic gleysolic soils of Latvia. The16 mixed binary swards were composed of white clover ’Rivendell’ and 6 perennial ryegrass, 6 Festulolium and 4 hybrid ryegrass cultivars. Swards were cut two to four times during the growing season. Crude protein content in dry matter (DM) was determined between cuttings both for each two-component clover/grass sward and for each component in a sward. The inclusion of Poa pratensis, Lolium perenne, Agrostis stolonifera, Festuca rubra, Festuca pratensis, Phleum pratense in mixture favored the persistency of white clover in binary clover/grass swards. Tall and cenotically active grasses as Arrenatherum elatius, Bromus inermis, Dactylis glomerata, Festuca arundinacea reduced ration and productive persistency of white clover in a sward. The ration of white clover and interaction between clover and definite species in clover/grass sward determined crude protein content in total DM yield of each sward as well as CP content for each component in a sward.

Keywords: white clover - grass mixtures, productivity, cutting freguency, oexistence