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Aberdeen MS | I agree with you plowboy on removal is removal.
But the question is still out there... what yields are your soils capable of producing without any fertilization at all?? If you put on nutrients exactly to what the grain removal is, you are still "building" to a point. The ground will regenerate and produce some kind of crop completely on it's own.
If you are reducing from the difference from auto regeneration and grain removal, then yes, you will deplete. If you are reducing from total grain removal, depending on what level your soils can provide, you are not depleting.
"Here", a 70 - 80 bushel/acre corn yield in normal years can be grown year after year with no nutrients what so ever applied. The reduction with no detriment comes from that first intial yield.
The soil isn't sterile until nutrients are added. It can and will grow something of a crop on its own. That is where the reduction is obtainable. | |
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fertlizer placement
