View of block 2. View of wheat on multiple use drill. Experiment Block 2. Wheat was planted directly on corn from right to left as follows: 1. 10.7-12-4 at planting time, top dressing of 200 lbs. of nitrate of soda in February. 2. 4-12-4. 3. Check with conventional drill. 4. 4-12-4 without pack wheels. 5. 21.4-12-4 Growth at 3 1/2 foot height.