For 21 years now, Dr. Ian Merwin has tended a 320-tree apple orchard on the eastern shore of Cayuga Lake near Cornell University’s Ithaca campus. He’s been studying the long-term effects of four different orchard floor management systems. A key question is, are there better arrangements than trees in herbicide-treated strips separated by alleys of grass, the system used by most apple growers? Merwin studies the effects on tree growth and yield, runoff and leaching of nutrients, and soil quality. The results have been surprising. In a nutshell, you can grow apples almost equally well over the long term in […]
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