Growing Power farm

Farming 3.0 is farming for a better world:

With seeds planted at quadruple density and nearly every inch of space maximized to generate exceptional bounty, Growing Power is an agricultural Mumbai, a supercity of upward-thrusting tendrils and duct-taped infrastructure. Allen pointed to five tiers of planters brimming with salad greens. “We’re growing in 25,000 pots,” he said. Ducking his 6-foot-7 frame under one of them, he pussyfooted down a leaf-crammed aisle. “We grow a thousand trays of sprouts a week; every square foot brings in $30.” He headed toward the in-ground fish tanks stocked with tens of thousands of tilapia and perch. Pumps send the dirty fish water up into beds of watercress, which filter pollutants and trickle the cleaner water back down to the fish — a symbiotic system called aquaponics. The watercress sells for $16 a pound; the fish fetch $6 apiece.