Yellow Streaky Corn

Late planted corn on sandy soil.  Above normal early spring precipitation.  Elemental S, Boron, Zinc added with 9-23-30.  Yellow areas in field and not limited to low areas.  No recent soil test. Could this be S deficiency on a potentially low pH field? Or at least low pH where symptoms are occurring?

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corn foliar issues

The symptoms shown in the pictures are showing up in various situations in Marinette & Oconto Counties this year. Most severe symptoms are on corn on corn on the drier soils. The pictured plants are from a field of Garst hybrids, in which about 60% of the plants exhibit some degree of these symptoms. Only […]

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Bare soil and lots of rain

The rain just keeps on coming after a previous week of hard tillage and planting. The value of grass waterways and crop residue has never been more apparent. The pictures depict a field that was once farmed in strips but has since been converted to one large field with no measures taken to stop or […]

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Manure runoff abatement

While traveling down to the Agronomy Meetings in Indianapolis, one couldn’t help but notice several LARGE dairy operations just south of the Chicago Metro area along I-65 in Indiana. Of interest is the extensive use of 1)cover crops and 2)soil diking that is prevalent around the perimeter of fields near these dairies (presumably a runoff […]

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Erosion

This field was seeded to alfalfa last summer following removal of fill for State Highway 29 construction. Erosion began last fall in areas where alfalfa did not catch. Oats were seeded this spring to help control erosion. Heavy rains this spring increased eroded area. Are there any suggestions for repairing the deeper eroded areas or […]

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Corn emergence in +60% soybean residue

Corn emergence in +60% soybean residue. About 33,000 ppa. No alterations made to corn planter. No fall tillage and no till corn. A good residue spread off the combine. Would have thought a fluted coulter was needed but not in this case. Manitowoc County photos, 6/10/02.

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Spring vs. Fall Tillage on Soybean Fields

A visual difference of spring vs. fall tillage on soybean residue. This is one of the fields in the Team Grains tillage study. Other than increased residue, no real difference in seed bed condition. At another site, the contrast in residue after planting was less. If nothing else, this study will point out that it’s […]

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Need for row clearing units?

Third year of no-till. Interesting how residue begins to accumulate. About 47% residue. Fluted coulters on planter. Are row clearing devices needed (i.e. slow growth syndrome) ? My guess is not. Manitowoc County photos, 5/16/02.

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Potassium Deficiency in Corn

Field corn (Roundup Ready CropPlan Hybrid) has been showing this symptomology since early July. The corn is following corn, prior to that it was unimproved sod for many-many years. No potash has been applied other than with starter in 2000 and in 2001, 10 gallons of liquid 10-34-0 starter was applied as a side placement. […]

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Nitrogen deficiency in soybean

Soybeans are light green to yellow in field pockets. Poor nodule development as well. My sense is this is nitrogen deficiency from saturated soils earlier in the growing season. When I checked the nodules from beans on higher ground, they were chuck full. Comments welcome. Manitowoc County photos, 7/28/01.

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