▁indent ured ▁serv itude ▁and ▁others ▁for ci b ly ▁export ed ▁as ▁slaves . ▁ ▁Description ▁ ▁Sug arc ane ▁is ▁a ▁tropical , ▁ ▁per enn ial ▁grass ▁that ▁forms ▁later al ▁sho ots ▁at ▁the ▁base ▁to ▁produce ▁multiple ▁st ems , ▁typically ▁ ▁high ▁and ▁about ▁ ▁in ▁diameter . ▁The ▁st ems ▁grow ▁into ▁can e ▁st alk ▁which , ▁when ▁m ature , ▁constit utes ▁around ▁ 7 5 % ▁of ▁the ▁entire ▁plant . ▁A ▁m ature ▁st alk ▁is ▁typically ▁composed ▁of ▁ 1 1 – 1 6 % ▁fi ber , ▁ 1 2 – 1 6 % ▁sol ub le ▁sug ars , ▁ 2 – 3 % ▁non - s ug ars , ▁and ▁ 6 3 – 7 3 % ▁water . ▁A ▁sugar c ane ▁c rop ▁is ▁sensitive ▁to ▁climate , ▁soil ▁type , ▁ir rig ation , ▁fert il izers , ▁insect s , ▁disease ▁control , ▁vari eties , ▁and ▁the ▁har vest ▁period . ▁The ▁average ▁yield ▁of ▁can e ▁st alk ▁is ▁ ▁per ▁year . ▁However , ▁this ▁figure ▁can ▁vary ▁between ▁ 3 0 ▁and ▁ 1 8 0 ▁t onnes ▁per ▁hect are ▁depending ▁on ▁knowledge ▁and ▁c rop ▁management ▁approach ▁used ▁in ▁sugar c ane ▁cultiv ation . ▁Sug arc ane ▁is ▁a ▁c ash ▁c rop , ▁but ▁it ▁is ▁also ▁used ▁as ▁liv est ock ▁f od der . ▁ ▁History ▁▁ ▁There ▁are ▁two ▁cent ers ▁of ▁domestic