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。
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 K2O 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.
出处
《中国蔬菜》
北大核心
1998年第1期12-14,共3页
China Vegetables
基金
中国-加拿大钾肥农学发展项目
关键词
莲藕
氮肥
钾肥
硼肥
配方施肥
Lotus roots, Nitrogen, Potassium, Boron