Abstract:
Generaly, the leguminous species are decreasing their production
and because of this the mixted cultures that use the field better are those with
two alternances of two rows. The economical importance of the mixted
cultures is rised by the protein and oil production at the surface unit wich is
more imporved at sun-flower and maize than at the plant cultivated separat
(pure culture). The average of the 2 years (2006 - 2007) the maxim yield at
maize was in mixed culture with soyabean (4366 kg/ha), at sun-flower also in
mixed culture with soybean (1806 kg/ha), at soybean the yield was of 1818
kg/ha in mixed culture with maize and at bean culture the yield was of 1142
kg/ha in mixed culture with maize. In mixed cultures maize x soybean x bean
and sun-flower x soybean x bean, the maize and the sun –flower are using the
N content of the two leguminous palnt, obtaining big yield spore. The best
surface ratio was for the mixed culture maize and soybean of 65% and 35%
soy bean, with an spore of 8.7% tahn the pure culture, tan the mixed culture
of 50% maize and 50% soybean with 6.2% bigger than the yield in pure
culture. In the mixed culture sun-flower and soybean, the ratio of 50% sun
flower and 50% soybean was the best, with a spore of 16.3%. Through
cultivation of mixed cultures the equivalent installment of the field is getting
double (LER is growing), the field being better use by the maize and sun
flower especially mixed with soybean.
