在柳州地区有用大油菜间作在秋植蔗行间,来年二月底至三月上旬作绿肥压青的习惯。大油菜间种在蔗行一般每亩可产绿肥1000—3000斤,多年的实践证明,大油菜压青增产效果是好的。例如新兴农场1978年秋植蔗间种冬季绿肥大油菜压青,经调查在同 Useful rapeseed in Liuzhou intercropping between autumn and winter cane line, the end of February next year to early March for green manure green habits. Large rapeseed plants in the cane row can produce green manure per acre 1000-3000 pounds, many years of practice has proved that the rape press green production is good. For example, emerging farms in the autumn of 1978 autumn planting green sugarcane vetiver green pressure, the investigation in the same