To produce high quality potatoes, nutrients must be applied efficiently directly to the roots. Sprinklers and moving irrigation machines distribute water and fertilizer generically, wasting any resource that lands further than 25 cm from the mother tuber.
Phosphorus application - tubers need soluble phosphorus to grow, but phosphorus has low mobility and solubility within the soil. Therefore, when using precision fertigation, you can apply consistent small doses to the active root zone, boosting phosphorus uptake.
Calcium application- tubers absorb Ca directly from their surface. By providing constant Ca to the crop via drip irrigation, you optimize absorption efficiency.