氮、磷、钾不同用量对圆葱干物质积累及产量的影响  

Effect of Different N,P,K Dosage on Dry Matter Accumulation and Yield of Onion

作　　者：佘萍[1] 买自珍[1] 马杰[1] 

机构地区：[1]固原市农业科学研究所,宁夏固原756000

出　　处：《北方园艺》2014年第21期12-15,共4页Northern Horticulture

基　　金：宁夏自治区科技计划资助项目(2013ZZN37)

摘　　要：在宁夏中部干旱区以圆葱"巴顿"品种为试材,研究了氮、磷、钾配施不同用量对圆葱干物质积累和产量的影响。结果表明:氮15kg/667m2、磷17.5kg/667m2、钾25kg/667m2(T1)处理对圆葱株高、叶片数、生长量有明显地促进作用,鳞茎产量5 580.83kg/667m2,较当地常规施肥氮10kg/667m2、磷12.5kg/667m2、钾20kg/667m2处理(CK)产量4 478.93kg/667m2,增产24.6%;氮20kg/667m2、磷22.5kg/667m2、钾30kg/667m2处理(T2)产量4 702.09kg/667m2,较CK增产4.98%,较T1减产15.75%;进而优化得出"巴顿"丰产高效的合理施肥模式为氮15kg/667m2、磷17.5kg/667m2、钾20kg/667m2,为当地圆葱大田栽培合理施肥提供参考和技术指导。Taking ＇ Barton＇ onion varieties in the arid zone of middle Ningxia concentric as experimental materials, effects of N,P,K different dosage on growth and yield of onion were studied. The results showed that,T1 （N 15 kg/667m^2 , P 17. 5 kg/667m^2 ,K 20 kg/667m^2 ） had obvious promotion function on onion plant height, leaf number, growth, bulb yield reached 5 580. 83 kg/667m^2, increased than a local conventional fertilization treatment CK（N 10 kg/667m^2, P 12. 5 kg/667m^2 ,K 20 kg/667m^2 ,4 478. 93 kg/667m2） by 24. 6%; yield of T2 （N 20 kg/667m^2 ,P 22. 5 kg/667m^2, K 30 kg/667m^2） treatment reached 4 702. 09 kg/667m^2 ,compared with CK increased by 4. 98%,compared with T1 reduced by 15.75%. Then the optimized fertilization model of high yield and high efficiency for ＂Barton＇ was N 15 kg/667m^2 ,P 17. 5 kg/667m^2 ,K 20 kg/667m^2 ,to provide theoretical basis and guidance technology for local onion field cultivation of rational fertilization.

关 键 词：氮 磷 钾 圆葱 生长 干物质 产量 

分 类 号：S633.206.2[农业科学—蔬菜学]