Sprayer, pre-emergence O 04 oenergyarea 1.2499 ostir 0.15 op_notes4 Herbicide application, typical broadcast liquid, Pre-emerge timing is commonly after planting and prior to crop emergence. Crop is not killed. User input: weed residue type and amount lbs/ac dry matter. ofuel op_devnotes4 Spray pest control chemicals on growing crop. Crop is not killed. In the MCREW management screen the user must select the kind of weeds killed in the growing crop as external residue. 080404 DTL Cloned from Defoliate (spray) crop.oprn, Changed the P31 to No crop kill and added G4 to add material to field MAS 9-28-06 LMOD and WEPS DB correlation, existing WEPS operation record, 160410 jp G 03 gcropname weed residue; 0-3 mo P 65 numst 0.0 rstandht 0.0 rstandmass 0.0 rflatmass 0.028021252 rbc 1 rburiedmass 0.0 rburieddepth 0.0 rrootmass 0.0056042504 rrootdepth 152.4003 standdk 0.017 surfdk 0.017 burieddk 0.017 rootdk 0.017 stemnodk 0.169 stemdia 0.005 thrddys 17.1 covfact 4.0 resevapa -1.20379 resevapb 0.604887 crop_notes Applied residue type, pre or post emergent weeds that are allowed to grow during non-cropped fallow periods for less than 3 months. Use a Sprayer for pre or post emergent weeds operation to spray weeds. Typically 100 lbs/ac of dry matter per acre or less from killed weeds.