Agronomy Notebook

corn emerging

Assessing Ohio’s corn emergence issues

While the conditions for emerging crops have generally been close to ideal in many fields, problems have been showing up. Dekalb Asgrow agronomist Jeff Rectenwald has come across some problems with crusting in fields. “Soil crusting and crop emergence seems to be a widespread problem in Ohio this spring. This not a hybrid specific issue, [...]

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Pythium on seedlings. Photo by Ohio State University Extension.

Pythium problems showing up in Ohio

It is an unsettling sight no soybean grower wants to see — entire fields dying shortly after emergence. This, though, is an unfortunate reality in some fields around Ohio. On May 14, Asgrow Dekalb agronomist Jeff Rectenwald was scouting fields for a customer in Auglaize County when he came across the aftermath of Pythium seedling [...]

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Evaluating early corn populations

Accurately assessing corn stands is one of the first crop scouting exercises Ohio corn growers should conduct on their fields. The 1/1000th acre method is commonly used to evaluate emerged corn seedlings. Count the number of seedlings in a length of row equal to 1/1000 of an acre based on row width (Table 1). Multiply [...]

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The role of seed germination in a successful 2013

By John Brien, AgriGold agronomist Planting is one of the most anticipated times of years for farmers. The weather warms up, the soils dry out and there is another opportunity for them to try their hands at producing that record yielding corn crop. High yields begin at planting and will not be finalized until harvest. [...]

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Reading soil test results

By Dave Nanda, Seed Consultants, Inc. Labs may differ in the data presentation and analysis but your understanding of the basic items would help you in ordering fertilizers for your fields. A soil test is a way of estimating the nutrients that may be available to the crop. Keep the following points in mind as [...]

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Prepare for larger soybean seed size this spring

By Jeff Rectenwald, Asgrow Dekalb Technical Agronomist The 2012 growing conditions resulted in production soybean seed being larger in size for many seed products. Therefore, planting equipment manuals should be reviewed to determine the appropriate settings, calibrations, and disks for delivered seed. Seed size should be checked when seed is delivered to determine if different [...]

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Temperature swings can hurt wheat

Extreme changes in temperature are the biggest concern wheat producers have for the development of their crop this season, a Purdue Extension agronomist said. Temperatures in recent weeks have risen to between 50 and 60 degrees and then dropped to single digits. “The cycling of cold to warm temperatures is a great recipe for freezing, [...]

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Glyphosate Resistant Weeds

  By Dave Nanda, Seed Consultants, Inc. 
Director of Genetics & Technology Those of you who were able to attend our winter meetings heard from our Agronomy staff about the presence of glyphosate resistant marestail in Indiana and Ohio and how to control it. Listed below are some of the facts about glyphosate resistant weeds. [...]

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Fertilizer, soil pH and Cation Exchange Capacity

By Dave Nanda, 
Director of Genetics and Technology 
for Seed Consultants, Inc. Soil pH, and Cation Exchange Capacity (CEC) — how are they related and do they affect fertilizer inputs? Some of the facts below should clarify their relationship. • Soils are made up of sand, silt, clay and organic matter. The CEC of a [...]

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Changing soil pH on your farm

By Dave Nanda, Seed Consultants, Inc. We have discussed what pH is and the importance of having balanced pH during the last three weeks. Many physical, chemical and biological processes necessary for crop survival, growth and yield are affected by soil pH. I would like to discuss how you can adjust the pH in the [...]

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