Crop production is consistently setting records for overall yield and yield per acre.

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For example, rice yield per acre on average is 1.3 tons versus 2.5 tons per acre in China.

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Upping the sugar content in the cane would lead to a higher yield of ethanol per acre.

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The MDA EarthSat crop tour estimated a corn yield of a 118 bushels per acre after surveying 49 fields in Iowa, Illinois, Indiana and Ohio.

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Not surprisingly, however, a Grenache vineyard that will produce dense, tongue-blackening wine when pruned back to yield 3 or 4 tons per acre makes pale, character-free, generic plonk at 10 or 12 tons per acre.

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This projected yield has been pushed down to 146 bushels per acre as of mid-July.

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