Abstract:
To obtaine a big and quality production, we analised the behaviour of 
different species and varieties of perennial graminaceae and leguminous, 
wich was cultivate in mixture crop. 
The competition problem between perennial graminaceae and leguminous is 
frequently studied  and the dates obtained are very important to estabilish the 
mixtures, in a some way that the components of the mixture do not be into a 
competition process and to be into a normal growing process. 
Through culture composition analyse, we obtain very important 
informations aboute the behaviour of the species and varieties cultivated in a 
mixture crop.