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本研究以湘北蔗区常规好蔗品种NCo310为材料,在1997年进行甘蔗播种密度试验,观察了甘蔗的出苗率,有效茎数,总芽数,茎粗等农艺性状.结果表明甘蔗播种密度对甘蔗的总芽数有极显著的影响,甘蔗总芽数随播种密度的增大而增多,每公顷播种芽数为200000个的处理相对于播种芽数为114285个的处理总芽数增加696552个,增加比例达41.36％。本研究进一步表明：在北缘蔗区建立甘蔗专用留种田只有加大播种密度才能够达到增加甘蔗总芽数的目的。
In this study, the common sugarcane variety NCo310 in sugarcane field of northern Hunan was used as the material to study the planting density of sugarcane in 1997. The seedling emergence rate, the number of effective stems, the total number of buds, the stem diameter and other agronomic traits of sugarcane were observed. The total number of the buds of sugarcane has a very significant impact on the total number of sugarcane shoots increased with the increase of seeding density, the number of seeding per hectare is 200000, compared with the number of seeding buds of 114,285, the total number of buds increased 696,552 , An increase of 41.36%. This study further shows that only establishing more sowing densities to establish sugarcane special subsistence farming can increase the total number of sugarcane in the northern sugarcane field.