Beet vinasse (desugared, beet molasses) was co-composted with each of
three following solid agricultural residues: grape marc, olive press c
ake and the cotton gin trash. The composts were sued to fertilize corn
. a treatment of mineral fertilizer was used for comparison. Compost h
ad no detrimental effects on the growth parameters and nutritional sta
tus of corn. Compost treatments produced yields (weight of grain) that
were higher than those obtained for mineral fertilizers.