Comportement du trèfle blanc associé à des graminées en Basse-Normandie. I-Influence des techniques d'exploitation

Behaviour of white clover associated with grasses in Normandy

This paper gathers ail the results that have been obtained for 15 years at the I.N.RA Station at Le Pin-au-Haras (Orne) relative to the studies of techniques ta be applied to grasslands containing White Clover (Ieys or permanent pastures) :- sowing rates and choice of associated cultivars,- yield variations between seasons and between years,- cutting frequencies and cutting heights,- advantage of an early harvest and consequences of the stage of the grass at the first cut,- rate and distribution in time of the Nitrogen fertilization,- influence of the stocking-rate on the evolution of the clover,- chemical composition of White Clover,- grazing of a Perennial Ryeqrass White Clover mixed sward by young growing cattle.