We prove that for 1<p≤q<∞, qp≥p′2 or p′q′≥q2,
p1+p′1=q1+q′1=1, ∥ωPα(f)∥Lp(H,yα+(2+α)(pq−1)dxdy)≤Cp,q,α[ω]Bp,q,α(p′1+q1)max{1,qp′}∥ωf∥Lp(H,yαdxdy) where Pα is the weighted
Bergman projection of the upper-half plane H, and
[ω]Bp,q,α:=I⊂Rsup(∣I∣2+α1∫QIωqdVα)(∣I∣2+α1∫QIω−p′dVα)p′q,
with QI={z=x+iy∈C:x∈I,0<y<∣I∣}.