用种、施氮水平对黔糖4号生育和经济性状的影响  

Effect of Seed Quantum and Nitrogen Levels on Growth and Economic Traits of Qiantang No.4

作　　者：周正邦 詹正兴 刘凡值 

机构地区：[1]贵州省亚热带作物-生物质能源研究所,贵州兴义562400 [2]贵州省贞丰县糖厂,贵州贞丰562200

出　　处：《中国农业科技导报》2011年第3期113-116,共4页Journal of Agricultural Science and Technology

基　　金：贵州省发改委高技术产业资助项目"贞丰县糖厂甘蔗新品种黔糖4号种植基地示范工程"(黔发改高技[2008]601号);贵州省科技厅"贵州生物质能源植物研发创新能力建设"(黔科合院所创能[2010]4007号)资助

摘　　要：为达到节本增效目的,探讨了黔糖4号合理用种量和施氮水平。2007-2009年在坡地针对该品种用种量和尿素施用各设置5个处理:分别为6.0×104芽/hm2、7.5×104芽/hm2、9.0×104芽/hm2、1.05×105芽/hm2和1.2×105芽/hm2(CK);0 kg/hm2、150 kg/hm2、300 kg/hm2、450 kg/hm2、600 kg/hm2(CK)。结果表明:各用种间植株生育、糖分和产量相似,用种7.5×104芽/hm2比CK增产5.7%,增收852元/hm2;产量随尿素用量增大而增加,与对照相比,0 kg/hm2和150 kg/hm2处理减产35.2%和20.0%,其他处理产量表现相似,450 kg/hm2处理比CK减少尿素用量150.0 kg/hm2,降低氮肥成本25.0%,增收节支263元/hm2。该结果对黔糖4号生产上合理用种和尿素施用,降低生产成本,提高种植效益具有指导作用。In order to save cost and add benefit,the seed quantum and nitrogen levels of Guizhou sugar No.4 were discussed.In 2007-2009,5 treatments were set respectively according to seed quantum and nitrogen level： 6.0×104 bud/hm2,7.5×104 bud/hm2,9.0×104 bud/hm2,1.05×105 bud/hm2 and 1.2×105 bud/hm2（CK）;0 kg/hm2,150 kg/hm2,300 kg/hm2,450 kg/hm2 and 600 kg/hm2（CK）.The results showed that the plant growth,sugar content and yield were similar among different seed quantum treatments.The production of 7.5×104 bud/hm2 treatment increased 5.7% compared with the CK,and its income increased 852 yuan/hm2;the yield increased with the increasing of urea dosage,the production 0 kg/hm2 and 150 kg/hm2 reduced 35.2% and 20.0%,respectively.The other treatments were similar compared with the CK,but owing to the 450 kg/hm2 treatments used 150.0 kg/hm2 less than the CK,it reduced the cost by 25.0%,and increased the revenue by 263 yuan/hm2.These results provided guiding effect for reasonable application of seed and urea,reducing production costs and improving plant efficiency.

关 键 词：甘蔗 黔糖4号 用种量 施氮水平 经济性状 

分 类 号：S566.1[农业科学—作物学]