摘要
为探究烤烟水肥一体化技术,在田间条件下,设置对照(T1)、常规施肥(T2)、水肥耦合(T3)3个处理,以研究水肥耦合对烤烟各器官干重、氮磷钾吸收的影响规律。结果表明:T3与T2比较,在平顶期,茎、下部叶、上部叶干重分别提高了28.18%、21.76%和11.01%;茎、下部叶、中部叶、上部叶氮吸收量分别提高了59.34%、43.49%、7.63%和10.61%;茎、下部叶、上部叶磷吸收量分别提高了34.39%、20.00%和43.24%;茎、下部叶钾吸收量分别提高了55.47%和45.48%。这表明T3有利于提高烤烟干物质积累量和各器官氮、磷吸收量,对钾的吸收无明显影响。
The effects of water and fertilizer coupling on dry weight,nitrogen,phosphorus and potassium absorption of flue-cured tobacco were studied in order to provide theoretical basis for the promotion of water and fertilizer integration technology.Under the field conditions,3 treatments with 3 repeats were set as control(T1),conventional fertilization(T2),water and fertilizer coupling(T3).The results showed that compared with T2,the dry weight of stem,lower leaf and upper leaf of T3 was up 28.18% ,21.76% and 11.01% respectively,the nitrogen uptake of stem,lower leaf,middle leaf and upper leaf of T3 was up 59.34% ,43.49% ,7.63% and 10.61% respectively,the phosphorus uptake of stem,lower leaf and upper leaf of T3 was increased by 34.39% ,20.00% and 43.24% respectively,the potassium uptake of stem and lower leaf of T3 was 55.47% and 45.48% higher respectively.According to the comprehensive analysis,T3 is beneficial to increase the dry matter accumulation and the nitrogen and phosphorus absorption of various organs of flue-cured tobacco compared with T1 and T2,but its effect on increasing potassium absorption is not obvious.
作者
蔡晓军
纪祥龙
邵红英
姚德贵
彦培强
王鹏
CAI Xiao-jun;JI Xiang-long;SHAO Hong-ying;YAO De-gui;YAN Pei-qiang;WANG Peng(Xinhe Management Area of Heping Ranch,Suihua Administration Bureau,Heilongjiang Agricultural Reclamation Bureau,Daqing 163319,PRC;Heilongjiang Bayi Agricultural University,Daqing 163319,PRC;Harbin Tobacco Company Heilongjiang Tobacco Company Harbin 150001,PRC)
出处
《湖南农业科学》
2020年第2期37-39,43,共4页
Hunan Agricultural Sciences
基金
黑龙江省烟草公司资助项目(201723000100250)。
关键词
水分耦合
烤烟
干重
养分吸收
water coupling
flue-cured tobacco
dry weight
nutrient absorption
