摘要
在酸性灰棕紫泥土上施用Ｎ２０．７，Ｐ１２，Ｋ３６ｇ／ｍ￣２（１．７３：１：３）莴苣的产量、品质和经济效益最高。
In a field experiment with lettuce on acid gray
brown earth,various combina-tions of NPK were tested.Taking into consideration the yield and
quality of the crop andits economic efficiency,the rate combination of 20.7g N plus 12g P_2O_5
and 36 g K_2O perm￣2 (with a ratio of 1.73:1:3)seemed most desirable and is
recommended.
出处
《西南农业大学学报（自然科学版）》
CSCD
1996年第4期396-398,共3页
Journal of Southwest Agricultural University
关键词
莴苣
施肥
氮
磷
钾
nitrogen
phosphorous
potassium
head lettuce
balance-fertilizing
