I bought about 16 dove decoys this year, the ones with the clips and some inflatables. My question is in your opinion, what in the most effective way to use them. I have heard they work well in dead trees and/or cut crop fields. I'll be hunting around alf-alfa fields, soy beans, and corn fields. Thanks

I have seen guys take a small dead tree and tie it up with ropes in 3 directions .
I have 2 10' peices of 3/4 pvc conduit with a 20' rope between them with 2 15' tie down ropes at each end
take it out to where you wand to hunt lay 1 conduit down strech out the 20' rope to the 2 conduit ,atach the decoys to the rope ,drive in a stake for the 2 tie down ropes 5' apart atach tie ropes and stand that conduit up ( helps to have help) stand up the other conduit to pull the 20' rope with decoys up and stake down the tie ropes
this gives you a 10' high 20'or 30' closeline with decoys on it . Doves will land with the decoys if you are not watching .GOOD HUNTING

most people put them on dead tree limbs or on a fake power line like described above but you have to do it somewhere the dove want to be like near water or food

I've killed lots and lots of dove but never bothered with decoys. I never saw the point. I recommend hunting over food plots such as sunflower, milo, and corn thats about all you need to kill dove sucessfully