Ah, calculating proper water needs with ET and crop coefficient is a game-changer, acha! You take your area's evapotranspiration (that's water lost to air) and multiply by the crop's specific "Kc" number for its growth stage—that gives you exactly how much to irrigate, no more waste. I regret not knowing this earlier, because we just pumped groundwater blindly until the field looked wet, and now our well is frighteningly low. Learning this now feels like fixing a leak after the tank is already empty.
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