Agronomy Talk




Central Minnesota Planting Updates

Agronomy Update

Author: Mike Blaine

Mike Blaine, Field Sales Agronomist joins Alec Marxen, Seed Representative, from Minnesota to give a late April update on planting progress in their territory.

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Author: Mike Blaine

Iron deficiency chlorosis (IDC) is a physiological disorder caused by a lack of iron in the soybean plant which creates the “chlorosis” symptoms. Plants with IDC have yellowing (chlorosis) beginning between the veins and progressing to a generally chlorotic canopy. Other symptoms include reduced plant growth and ultimately, lower yields. Yield reductions from IDC are a primary limitation for some farmers in certain fields.

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Agronomy Talk: Sudden Death Syndrome

Author: Mike Blaine

Sudden Death Syndrome (SDS), caused by Fusarium virguliforme, is a soybean disease that has grown in importance for farmers over the past 20 years. Today, it is ranked second only to soybean cyst nematode (SCN) as the most detrimental cause of annual damage to soybean yields. As the soybean-growing region has expanded to the North and the West, SDS continues to spread to new fields and to larger areas of fields that have already been infected. The severity of SDS damage varies from area to area and field to field, but yield reductions associated with SDS typically range anywhere from 20 to 70%.

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Agronomy Talk: Alfalfa Winterkill

Author: Mike Blaine

The weather we experienced this winter has caused difficulties for everyone, but for farmers, the winter of 2018-2019 has led to uncertainty when in the hopes of a normal spring planting season.

Across a large swath of the Northern Corn Belt, especially those areas where alfalfa is an integral crop, a late, wet Autumn resulted in saturated soils going into the winter months. Compounding this situation were the late December rains (in some locals approaching 2.0 in.), an extremely cold January, persistent low temperatures throughout February and multiple heavy snow events in early March. As of March 13, 2019, when this article was written, Minnesota has experienced our second inch of cold rain.  And though the snow depth has gone from 26 in. to a level of 18 in. in the past 36 hours, the chances of injury to our alfalfa crop is higher than normal this year.

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