摘要
在湛江以甘蔗品种新台糖22号(ROC22)为试验材料,通过1年新植与1年宿根田间试验研究施用海藻多糖尿素对甘蔗产量和氮素利用率的影响。结果表明:常规用量下海藻多糖尿素处理比普通尿素处理2年平均产量提高5.4%,理论糖产量提高6.7%;常规用量减量20%条件下海藻多糖尿素处理比普通尿素处理2年平均产量提高10.1%,理论糖产量提高10.8%;与普通尿素相比,甘蔗施用海藻多糖尿素可以显著提高氮素利用率23.7%,同时增加经济效益。
Effects of seaweed polysaccharide urea on sugarcane yield and nitrogen use efficiency were studied in a field experiment(one-year new planting and one-year ratoon)with sugarcane variety ROC22 in Zhanjiang.The results showed that under the conventional dosage,the average yield for two years of seaweed polysaccharide urea was 5.4%higher than that of seaweed polysaccharide urea,and the theoretical sugar yield was 6.7%higher.Under the condition of conventional dosage reduction of 20%,the average yield for two years of seaweed polysaccharide urea was 10.1%higher than that of conventional urea,and the theoretical sugar yield was 10.8%higher.Compared with conventional urea,the application of seaweed polysaccharide urea in sugarcane can significantly improve nitrogen use efficiency for 23.7%,and increase economic benefits.
作者
江日东
陈迪文
周文灵
敖俊华
沈宏
徐军杰
温湛兰
吴小丽
JIANG Ridong;CHEN Diwen;ZHOU Wenling;AO Junhua;SHEN Hong;XU Junjie;WEN Zhanlan;WU Xiaoli(Zhanjiang Academy of Agricultural Sciences,Zhanjiang,Guangdong 524094;Institute of Nanfan&Seed Industry,Guangdong Academy of Sciences,Guangzhou,Guangdong 510316;College of Resource and Environment,South China Agricultural University,Guangzhou,Guangdong 510642)
出处
《甘蔗糖业》
2022年第4期24-29,共6页
Sugarcane and Canesugar
基金
国家糖料产业技术体系专项(CARS170203)
湛江市科技计划项目(2020A04001)。
关键词
甘蔗
海藻多糖尿素
甘蔗产量
氮素利用率
糖产量
Sugarcane
Seaweed polysaccharide urea
Cane yield
Nitrogen use efficiency
Sugar yield
