Enrico Ferro’s 17 acres of densely planted but smaller avocado trees in Valley Center are expected to yield 10,000 pounds of fruit per acre using roughly the same amount of water as conventional farms that yield about 6,500 pounds per acre.

Enrico Ferro’s 17 acres of densely planted but smaller avocado trees in Valley Center are expected to yield 10,000 pounds of fruit per acre using roughly the same amount of water as conventional farms that yield about 6,500 pounds per acre. Photo by Stephen Whalen.

— Avocado farmers, struggling for years with soaring water prices, are starting to embrace a relatively untested planting method that could double their yield and might even curb water use...

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