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WC Mn/Dakotas | Here is a 140 acre west central mn flat field. Less than 10ft elevation change at extremes. One soil type for a mile or more in any direction. Same lab did the testing, but coop did the grid one year and 2 or 3 years later i zoned it. Farmer never spent so much money and had the poorest crops to boot for the few years as with coop grid program.
So pics are
Grid k
Grid bray p1
Grid over my zones
My sample points
My zone results- dg7 is dark green best, lg5 is light green middle, and lol3 is light orange poor zone.
Grid k is 190-318ppm (avg 255) vs zone 131-136
Grid p is .4-35ppm (avg 6.4) vs zone 17,4,4
Better yet is p olsen at 11, 18, 9 vs grid didnt even test.
This is a pattern tiled field and a very detailed hands on grower. Needless to say he no longer uses the coop for sampling or fertilizing services. This is very common in this part of the world. Gridding and most coops are a waste of money.
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 20180124_194134.jpg (104KB - 31 downloads)
20180124_194305.jpg (93KB - 37 downloads)
20180124_194352.jpg (109KB - 29 downloads)
20180124_194452.jpg (110KB - 24 downloads)
20180124_194850.jpg (84KB - 30 downloads)
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VRT fertilizer recs based on ZONES and not GRIDS?
