By Stephanie Karhoff OSU Extension
Get the most out of your Ag Tech this year by joining experts from Ohio State University, Michigan State University, and Purdue University for the 2020 Tri-State Precision Ag Day via online webinar on June 23 at 6:00 p.m. Learn more about drone imaging, calibrating yield monitors, on-farm research, and emerging technologies.
Topics and speakers include:
Hype from Reality
Dr. John Fulton, Associate Professor, The Ohio State University
Get the Most out of Ag Tech with On-Farm Research
Dr. Elizabeth Hawkins, Field Specialist, The Ohio State University
Yield Monitor Calibration
Ricardo Costa, Extension Educator, Michigan State University
Aerial Imagery Options
Crystal Van Pelt, Extension Educator, Purdue University
Register for the webinar at go.osu.edu/TriStatePrecisionAg. Contact Agriculture & Natural Resources Extension Educator Stephanie Karhoff at 419-636-5608 or firstname.lastname@example.org for more information.
By Peter Thomison OSU Extension
There have been reports of slow corn emergence in some areas and that corn planted more than two weeks ago is not yet emerging. Is this cause for concern? Not necessarily. Corn requires about 100 growing degrees days (GDDs) to emerge (emergence requirements can vary from 90 to 150 GDDs). To determine daily GDD accumulation, calculate the average daily temperature (high + low)/2 and subtract the base temperature which is 50 degrees F for corn. If the daily low temperature is above 50 degrees, and the high is 86 or less, then this calculation is performed using actual temperatures. If the low temperature is less than 50 degrees, use 50 degrees as the low in the formula. Similarly, if the high temperature is above 86 degrees, use 86 degrees in the formula. The high cutoff temperature (86 degrees F) is used because growth rates of corn do not increase above 86 degrees F. Growth at the low temperature cutoff (50 degrees F) is already near zero, so it does not continue to slow as temperatures drop further.
Do you have a pond management question? Then, join Eugene C. Braig on Tuesdays from 4:00 – 6:00 p.m. via Zoom for a virtual pond clinic. Eugene is the Program Director of the School of Environment and Natural Resources’ Extension Aquatic Ecosystems Program. He will be available to answer your question(s) online on an individual basis. There may be a short wait time, depending on the volume of questions for a given week. See below for instructions to access the Zoom meeting. Continue reading
By: Jim Camberato and Bob Nielsen Purdue University
Although nitrogen (N) fertilizer can be costly, it is needed to optimize profit in Indiana cornfields. Applying too little N reduces profit by reducing grain yield. Too much N does not return value and can also damage the environment.
Results from 167 field-scale N response trials conducted over more than 10 years underpin current region-based N recommendations. These data-driven N recommendations replaced the old yield-goal based system1, which was proven ineffective. Current recommendations represent the N rate for maximum profit over the long-term, but differences in soil type, management, and weather can result in lower or higher N requirements in any given situation. Rainfall after N application will primarily determine the efficiency of applied N2, with excessive rainfall causing higher N loss and greater need for fertilizer N. Although N applied prior to planting this season has not been subject to conditions promoting N loss in most areas of Indiana, N loss can occur season-long, particularly prior to the V8 growth stage when corn N uptake and water use are relatively low. Continue reading
By Stan Smith, OSU Extension
Two weeks ago we discussed how COVID-19 has caused challenges for consumers and farmers alike regarding beef supply and demand. As consumers concern themselves with providing quality food for family members that are now eating more meals at home, cattlemen struggle with a backlog of finished cattle that packers can’t get harvested. That causes some to ask, “Why are we importing beef?”
At first glance it seems like a movement that resulted in American consumers eating only domestic beef would provide a simple and logical solution for both consumers and cattlemen. Under closer inspection, we find a move to no longer eat imported beef would mean our days of frequenting most fast food restaurants could be over, and the net value of our U.S. cattle would be even less. All the while, U.S. beef harvest capacity would remain at the mercy of COVID-19 and packing plant employee health. Continue reading