Recommended N-P-K-Ca-Mg ratios, applied by fertigation via drip irrigation, across main growth stages of field-grown strawberries, with a life span of 210 days, and an expected yield of 25-30 MT/ha.
Potassium nitrate should be used as the primary source of potassium, and a partial source of nitrogen. The balance of nitrogen should be sourced from calcium nitrate, magnesium nitrate and ammonium nitrate, as per the above-mentioned phase-specific rates.