Time for CORN Tissue Testing

Well after 2.5 inches of rain yesterday afternoon and evening at our house, my wife should not have to water the garden tonight.  I had wanted a little bit of rain to keep the crop moving forward but I received a lot more than that.

 

Last week we looked at a lot of corn that was V2 to V4.   This week is critical in field corn.  The weeds need to be cleaned up and a residual product laid down to keep the field clean until canopy.  An example of a recipe you could use in glyphosate tolerant corn would be 24oz of a 5# glyphosate, 1.5pts Atrazine 4L (if you are not in a restricted area & you have not already used Atrazine), and  2 to 3 oz. of Capreno.   Remember to always check labels and check with your Agronomist at Allied before making any applications.

 

Now is the perfect time to call us to have your tissue samples taken for field corn.  We want them pulled at V4 to V5 to confirm where the nutrient levels are at in the corn plant.  We have many interns and staff available to help in this effort.  We will also ask when the last time you pulled a soil sample.   If it has been more than 3 years we will want to pull a soil sample at the same time the tissue sample is pulled.

 

Please take the time with the weather delays to check on your corn stands (see pictures below).   Check populations, look for missing plants, find out why they are missing.   Bring along a shovel and check planting depth and look for any disease or insect pressure.   If you do not have time please give us a call we would like to help you evaluate your fields.

 

Have a safe and productive week!   — Rob Shields, Agronomy

looking at corn populations

Looking at Corn Populations

Corn plant in trouble


Corn Plant in Trouble

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Cold & Wet weather slows fall NH3 application

Fall NH3 #1Over the last two weeks we have seen a lot of Fall Anhydrous Ammonia knifed in with N-Serve. On medium to heavy soils this is a nice way to ease the work load during the spring rush for many producers. However the 1.3″ of rain we received over the last 4 to 5 days and the cold temperatures rolling in (16 degrees predicted for tonight) have all but stopped the fall applications of NH3 or 82-0-0.  I hope they changed the extended forecast to allow for some more fall field work and application. 

I often get asked how long does the N-Serve protect my NH3 in the soil, and the truth is there is no standard answer.  A lot of it has to do with soil temperature.  I attached a quote from Dow Agrosciences to help with this question. Please stay safe out there this fall!                — Rob Shields

 

Q. How long does N-Serve protect nitrogen (N) at the root zone?

A. Historically, N-Serve applied in the fall has provided approximately 90 days of effectiveness, with that effectiveness declining over time. N-Serve is designed to slow the conversion of anhydrous ammonia into the nitrate form when soil temperatures rise above 40°F. This soil temperature is significant because the soil bacteria that break down anhydrous ammonia into nitrates become active at this temperature. If soil temperatures are below 40°F, the soil bacteria become inactive and the anhydrous ammonia is not converted into nitrates.

If you’ve applied anhydrous ammonia with N-Serve in the fall, simple counting can help you determine roughly how long N-Serve will protect your N the following spring. Just count the number of days from application until the soil temperature reaches 40°F and then stop counting. Start counting days again when the soil warms back up to 40°F.