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Re: CORN SUITABILITY RATING- ON A ZERO TO 100 SCALE

Shaggy98- no, CSR stands for Corn Suitability Rating. It is on a 0 to 100 scale, with 100 being the very best soil in Iowa. Usually 90 to 95 is the best you see and can do well over 220bu/acre, even 240bu. This is assuming a normal weather pattern, not like 2012 with the drought. Soil with ratings below 20 to 30 would probably never be farmed. CSR also takes in the account the slope of the land too. Generally it has a slope reading of 0 to 2%, 3 to 4%, etc. The more slope it has the lower the CSR Rating is. So it is a combination of the soil type such as Nicolent Loam with a 0 to 2% slope would have a 88 CSR Rating. Where as Nicolent Loam with a 3 to 4% slope would have a rating such as 75. Hopefully I have done a good job explaining it, but again the CSR Rating is a combination of the soil type along with the slope of the land.

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