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本研究以湘北蔗区常规品种NCo310为材料，在1996年进行喷施几种植物生长调节剂和加大播种密度的试验。观察了甘蔗的总茎数、株高的变化，考察了甘蔗的总芽数、茎粗、节间长度、单茎重等农艺性状。结果表明：所喷植物生长调节剂对节间长度有明显影响，但对总芽数无显著影响。在北缘蔗区建立甘蔗专用留种田只有加大种植密度才能够增加甘蔗总芽数。一般每公顷增加总芽数36·46万个，增加比例为23.93％。采用甘蔗专用田种田栽培技术，可以明显地提高北缘蔗区甘蔗生产水平。
In this study, the conventional varieties of northern Hubei sugarcane NCo310 as the material, in 1996, spraying several plant growth regulators and increasing planting density test. The total stem number and plant height of sugarcane were observed. The total number of buds, stem diameter, internode length, single stem weight and other agronomic characters were investigated. The results showed that the sprayed plant growth regulators had a significant effect on internode length, but had no significant effect on the total bud number. In the northern sugarcane area to establish sugarcane dedicated to stay farming only increase planting density in order to increase the total number of sugarcane buds. Generally, the number of total buds per hectare increased by 364 million to 23.93%. Using sugar cane field cultivation techniques, can significantly improve the sugar cane production in northern sugarcane level.