On the irrigated sands, sidedress with 30 to 50 lb. N per acre approximately 3 to 4 weeks after transplanting. Harvesting Remove vines by cutting with a rotary mower. Dig only those potatoes that can be picked up immediately and not left out overnight. Potatoes will sunburn if left in direct sunlight over one hour.
Field grading is important.
Prevent skinning and breaking. Use cotton gloves when placing potatoes in crates. Hold this temperature until potatoes are marketed or used for producing slips. Follow 3-4 year crop rotations. Dip roots and sprouts in solution for 2 minutes and plant immediately.