冬春种植甘蔗前期生长缓慢,行距较宽,一般6～7月份才开始拔节封行。如能在2月上旬套种上早熟黄豆,5月中旬收获,不仅每亩增收黄豆70～100公斤,而且黄豆植株能遮盖甘蔗行间,减少地面水分蒸发,提高甘蔗抗旱能力。此外黄豆根部有根瘤菌,据科研测定:套种一亩黄豆, Early winter planting sugar cane growth slow, wide line spacing, usually 6 ~ July began to join the joint seal. If in early February intercropping early maturing soybean, harvested in mid-May, not only per acre to increase the yield of soybeans 70 ~ 100 kg, and soybean plants can cover the intercropping of sugarcane to reduce evaporation of ground water and improve drought tolerance of sugar cane. In addition rhizobium root soybean, according to scientific research determination: Intercropping soybean acre,