Plant nutrient uptake and potato yield response to banded and broadcast nitrogen

The response of potato plants to banding and broadcasting of N was evaluated under sprinkler irrigation utilizing well water containing 20 to 24 ppm NO3-N. A potato crop was grown for three consecutive years on a Wasco sandy loam soil at rates of 67, 134, 202, and 269 kg N/ha, as (NH4)2SO4. At each rate of N, 58 kg P/ha as superphosphate, and 112 kg K/ha as K2SO4, were included.