北方农业学报 ›› 2017, Vol. 45 ›› Issue (2): 63-63.

• 土壤肥料·节水灌溉 • 上一篇    下一篇

永登县北部山区不同氮磷钾配比对马铃薯产量的影响

李学才   

  1. 甘肃农业大学,甘肃兰州730070
  • 出版日期:2017-04-20 发布日期:2017-04-20
  • 通讯作者: 李学才
  • 作者简介:李学才(1963-),男,副研究员,硕士,主要从事作物育种与栽培研究工作。
  • 基金资助:
    甘肃省科技支撑计划项目(144NKCA243)

Influence of various N, P, K combinations on yield of potato on northern mountains in Yongdeng county

LI Xuecai (Gansu Agricultural University, Lanzhou 730070, China)   

  • Online:2017-04-20 Published:2017-04-20

摘要: 针对永登北部干旱山区土壤条件和马铃薯生产实际,就不同配比氮、磷、钾对马铃薯产量的影响进行了试验研究。结果表明,该地区马铃薯的最佳氮、磷、钾肥料配比为尿素375.0kg/hm2,普通过磷酸钙112.5kg/hm2,硫酸钾600.0kg/11m5,产量可达到20730.36kg/hm2,比当地平均产量增产80%以上;该地区土壤中氮、磷相对富裕,而钾则严重缺乏,钾肥是影响该地区马铃薯产量的主要因素,要想提高马铃薯产量,必须在重视钾肥施用量的同时,合理配施氮、磷、钾肥。

Abstract: According to soil condition in northern drought mountain in Yongdeng and production actual situation of potato, the results indicated that the most suitable NPK combination was CO (NH2)2 375.0 kg/hm2,CaS20s 112.5 kg/hm2,K2S04 600.0 kg/hm2, which can make the yield reach to 20 730 kg/hm2 and it was increased over 80% than local average yield. Besides, the soil in this region contained rich N and P, but severely short of K. K was the most effect factor on potato's yield in this region, therefore we should pay more attention to application content of K and reasonable NPK combination to promote potato' s yield.

中图分类号: 

  • S532