Drought has been wreaking havoc on all of California, including the wine industry. Producers have varied their responses to it, with some irrigating as much as they still can and others calling for “dry farming.”
Yesterday, Josh Jensen (right) of Calera Wine told a packed seminar at the In Pursuit of Balance tasting in New York about his approach. He irrigates his 84 acres of hillside vines in the Gabilan Mountains (south of the Santa Cruz Mountains). Initially, when water was more available, he watered three hours at a time, four times a year. Then the increased those durations to six-, 12-, 24-hour “sets” or dousing through the drip irrigation. He finally reached 48 hours, arguing that a prolonged watering saturated the vines to the deepest level, sending the root deeper down.
However, now, with water scarce, he has to truck water up to 1,200 feet to feed the drip lines. He said that for seven months last year, he sent five truckloads of water a day up to fill reservoir tanks to feed the irrigation lines. In total, Calera brought up 1.8 million gallons of water, sourced from a neighbor. And even with that, the vines eked out a yield of 0.6 tons per acre.