J.Watering

Proper wateringin is critical for crop success the

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Unformatted text preview: Water Frequency 5X /week 3X /week 1X /week 10 Watering Watering ◆  Watering = Frequency X Volume ◆  Both are important ◆  Both must be adjusted, based on production system Watering Strategies: Main Initial Hydration- watering in Standard ü༏  Just prior to wilt ◆  Spot ü༏  Touching up bench edges ◆  Withhold water to “harden” plants ◆  ◆  Initial Hydration! ◆  Proper “wateringin” is critical for crop success. ◆  The more water in the pot prior to irrigation- the more it will absorb!! 11 Watering Initial Hydration 50% Moisture 100 Volumetric Water Content 80 60 40 20 0 0 1 2 3 4 5 6 7 8 9 10 Hydra3on Events Mix A Mix B Mix C Initial Hydration 25% Moisture 100 Volumetric Water Content 80 60 40 20 0 0 1 2 3 4 5 6 7 8 9 10 Hydra3on Events Mix A Mix B Mix C Initial Hydration ◆  Surface wetting is not hydration ◆  Most often overlooked ◆  Water times ◆  Pick up pots to check ◆  Water tunnels 12 Watering Water Tunnel Water Tunnel Water Flow in Substrates ◆  Large pores in mixes ◆  Water takes least resistant path ◆  Water paths become established ◆  Water flows in channels ◆  Dry mix increases channeling 13 Watering Water Uptake in Containers 1. Water channels 2. Leaching starts 3. Bottom saturates 4. Water moves UP 5. Leaching continues Wetting Agents ◆ Make water “wetter” ◆ Reduce channeling ◆ Improve lateral movement Wetting Agents ◆...
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