| http://www.w3.org/ns/prov#value | - g number of acres planted to corn and soybeans, which are particularly sensitive to salt, also has increased attention on soil salinity in the Upper Midwest.An estimated 2 million acres on the Northern Plains, including Canada, are moderately saline, while 275,000 acres in the Red River Valley of eastern North Dakota and western Minnesota have moderate or greater salinity, according to estimates.?
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