Does This Add Up? Thoughts?

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USDA seeded ac predictions;

Average Range 2007 Seedings

Corn 87.387 85.700-89.750 93.600

Soybeans71.526 70.000-74.239 63.631

Winter Wheat46.986 46.600-49.100 44.987

Spring Wheat 14.147 13.520-14.945 13.297

Durum 2.492 2.000-2.900 2.149

All Wheat 63.625 62.330-65.400 60.433

All wheat is up 3.2m ac
Corn is down 6.3m ac
Soys are up 8.1m ac

So the three major crops are predicted up about 5m acres.

Where are these acres coming from?

What are peoples thoughts on these predictions?