华北地区夏玉米滴灌施肥的肥料效应
李格,白由路,杨俐苹,卢艳丽,王磊,张静静,张银杰

Effect of Drip Fertigation on Summer Maize in North China
LI Ge,BAI YouLu,YANG LiPing,LU YanLi,WANG Lei,ZHANG JingJing,ZHANG YinJie
表6 夏玉米钾肥利用率
Table 6 Potassium fertilizer use efficiency of summer maize
年份Year 处理Treatment 钾肥利用率KFUE (%) 钾肥农学效率KAE (kg·kg-1) 钾肥偏生产力KPFP (kg·kg-1)
2017 K0 - - -
K1 61.44a 7.80a 162.37a
K2 67.08a 7.18a 130.83b
K3 73.19a 6.63a 109.67c
2018 K0 - - -
K1 47.96a 14.48a 135.38a
K2 57.13a 11.95a 108.67b
K3 58.30a 11.02a 91.62c