The total estimated water consumption for the crop is 26.7 inches. Actual irrigation records show a total of 24 to over 40 inches has been applied in past years, depending on variety, planting date, harvest date, and seasonal weather. Soil Types Potatoes are adapted to most Texas soils, provided they are well-drained. Heavy clay soils should be avoided. Good yields are produced on the clay loams, sandy loams, and loamy sands.
Harvesting is easier on sandy loams and loamy sands after rain.
Most High Plains potatoes are planted in sandy loams and loamy sands. Russeting and skin set are better in sandier soils. Potato plants require relatively high soil fertility for production of strong tops and premium size tubers of high quality. Nutrient requirements occur early in the growth of the plant, thus all phosphorus and potassium and at least half the total nitrogen fertilizer is usually applied at or just before planting. The fertilizer should be banded 2 inches to the side and 1 inch below on both sides of the seed piece, but most growers no longer band fertilizer.