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Field Crops

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Tells you how much it costs to do a particular farming operation like plowing.  Jun 14, 2011, 3:55 AM Bob Whitney
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Great pictures of crop nutrient problems and fertilizer application injury from Iowa State.  Nov 20, 2010, 1:17 PM Bob Whitney
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Great pictures and information  Nov 20, 2010, 2:15 PM Bob Whitney
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Varieties and cultural practices for oat production in South Africa  Apr 25, 2012, 8:12 PM Bob Whitney
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  Sep 30, 2012, 12:32 PM Bob Whitney