Effects of clipping frequency on yield and quality of hybrid sweet sorghum

Clipping frequency of Sugargraze, a new hybrid variety of sweet sorghum introduced in 2001, was studied. The result showed that with the increasing of clipping times, fresh and dry yield, crude protein reduced, but the unit content increased. Cutting only once had the highest fresh, dry yield and crude protein of 110 780, 29 750, 1 250 kg/hm2, respectively; the treatment of 2 cuttings followed, but with higher stem sugar content; 3 cuttings was the worst and should not be used.