The growth rate of plants, health of plants, and plant yield are improved by the use of structured micro-water for irrigation. Water with an Oxidation Reduction Potential (“ORP”) reading of −1 mV to −1100 mV and containing dissolved hydrogen from 10 to 10,000 ppb has smaller water clusters and is easier for a plant to absorb through the plants aquaporins. Structured micro-water having these parameters is obtained by equipment employing electrolysis/ionization or through the addition of certain chemicals.
