, the occurrence of salt-affected soils in pecan orchards is common in upland soils irrigated with moderately saline water (1 to 2 dS·m −1 ) and in alluvial soils with poor drainage or inadequate permeability ( Miyamoto and Storey, 1995 ). High
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upland soils of the Ozark Highlands ( Brye et al., 2013 ). The experimental organic orchard site had been in horticultural crop production for ≈75 years. Before orchard establishment, the site was prepared and cultivated in 2005 (described in Mays et al
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