中国蔬菜 ›› 1998, Vol. 1 ›› Issue (1): 7-0.

• 试验研究 • 上一篇    下一篇

莲藕氮、钾、硼配合施用效果

李贵宝; 孙克刚; 焦有; 王英; 梁国林;   

  1. 河南农科院土肥所; 河南南阳市农科所;
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1998-01-20 发布日期:1998-01-20

Studies on Fertilization of Nitrogen,Potassium and Boron in Lotus Roots

Li Guibao; Sun Kegang; Jiao You et al.   

  1. Soil and Fertilizer Institute; Henan Academy of Agricultural Sciences; Zhengzhou 450002
  • Received:1900-01-01 Revised:1900-01-01 Online:1998-01-20 Published:1998-01-20

摘要: 莲藕采用氮、钾、硼配施可增大叶片半径,显著提高产量,以N18K8B1配施产量最高,达377.7kg/667m2,从而增加了净收益,每667m2收益达1054.1元。缺硼、缺钾或减少氮肥用量均影响产量大幅度提高,在氮、钾充足的情况下施用硼肥的效益高,每千克硼肥可增收48.0~164.6元/667m2。

关键词: 莲藕, 氮肥, 钾肥, 硼肥

Abstract: The combinated use of N,K and B increased leaf size and yield of lotus roots. The highest yield and profit,5.7t/ha and 15812 yuan/ha,were obtained when 270kg N,120kg K2O and 15kg B per hectare were used together. Deficiency of B,K and less use of N influenced yield greatly. Application of B fertilizer gained maximum profit. One kilogram B fertilizer could increase profit from 720 to 2469 Yuan/ha in the experiments. 