不同施氮量对甘蔗新品种桂辐98-296生长的影响  

Effects of Different Nitrogen Application Rate on Growth of Sugarcane New Variety Guifu98-296

作　　者：梁阗[1] 李毅杰[1] 游建华[1] 吴凯朝[1] 刘红坚[1] 

机构地区：[1]广西农业科学院甘蔗研究所/农业部广西甘蔗生物技术与遗传改良重点实验室/广西甘蔗遗传改良重点实验室,广西南宁530007

出　　处：《热带农业科学》2015年第8期1-5,共5页Chinese Journal of Tropical Agriculture

基　　金：国家农业科技成果转化资金(No.2012GB2E100358);广西农业科技成果转化资金(桂科转1222017-16)

摘　　要：在不同生态条件下,研究追施氮肥对桂辐98-296生长的影响,为其在广西大面积种植推广应用提供参考依据。以当地蔗农习惯施肥量为基础,设追施尿素0（CK）、150、300、450 kg/hm24个处理,在广西合山市、隆安县、柳江县、环江县、象州县、来宾市兴宾区等6个蔗区对桂辐98-296进行试验,调查分析其农艺性状和产量性状表现。结果表明,300、450、150 kg/hm^2处理平均蔗茎产量分别比CK增加11.02、8.22、7.30 t/hm^2,其中生态条件较差的合山、隆安、环江、兴宾等点增产效果显著,生产水平相对较高的柳江、象州等点增产效果不明显。说明在生态条件较差的合山、隆安、环江、兴宾等点,追施尿素150-300 kg/hm^2,桂辐98-296增产效果最佳。Under different ecolog ical conditions, study the effect of dressing nitrogen on growth of Guifu98-296, for purpose of provide reference on large area planting and the popularization and application in Guangxi province. Based on the local sugarcane grower conventional used fertilizer rate, there were 4 different dressing nitrogen treatments designed in experiment, which was 0 （Control）, 150, 300, and 450 kg/hm^2 respectively. According to experiment design, dressing nitrogen on Guifu98-296 in 6 sugarcane region of Guangxi Heshan City, Long＇an County, Liujiang County, Huanjiang Couty, Xiangzhou County and Laibin City Xingbin District, investigated and analyzed its agronomic characters and yield performance. The results indicate that, the average sugarcane yield of 300, 450, and 150 kg/hm^2 treatments were increased 11.02, 8.22, 7.30 t/hm^2 respectively compare with the control. The poor ecological conditions of Heshan City, Long＇an County, Huanjiang Couty and Laibin City Xingbin District, sugarcane yield increased significantly. Sugarcane production level was relatively higher in Liujiang County and Xiangzhou County, but the effect of yield increasing was not obvious. The results showed that, in the poor ecological conditions of sugarcane region, dressing nitrogen from 150 kg/hm^2 to 300 kg/hm^2 on Guifu98-296, the effect of yield increasing was optimal.

关 键 词：甘蔗 桂辐98-296 施氮量 产量 

分 类 号：S566.1[农业科学—作物学]