At Hoegemeyer Hybrids, we are humbled and grateful to be celebrating 80 years in the seed industry. Over the past eight decades, there have been many ups and downs in the agriculture industry. But we know agriculture is the backbone of this country and we take great pride in getting to play our part in this journey.
As we approach the Thanksgiving holiday, I want to extend a thank you to all of our customers, dealers and employees who make our work at Hoegemeyer so worthwhile and enjoyable. We know that you have many choices when it comes to seed suppliers and we are thankful that you place your trust in us for your seed needs.
Thank you, for your friendships and business. Wishing you all a safe and Happy Thanksgiving!
Every year, when the calendar gets close to June, the question of whether to back off on relative maturity or not arises at least somewhere in the Hoegemeyer footprint. Some areas this spring have been continually hit with significant rain events that have not allowed corn planting to progress. No matter what date you planted your corn, it still takes about 125 growing degree units (GDU’s) for corn to emerge. In addition, research has shown that full season corn hybrids can also adapt to GDU’s needed for growth and maturity when planted later. For example, a corn hybrid will adjust to late planting by reducing the GDU’s necessary to reach black layer by about 6 units per day. An example would be a hybrid planted on May 20th that would require about 150 fewer GDU’s than the same hybrid planted on April 25th. Although the time required for a late planted hybrid to go from silk to black layer is increased, the time period from planting to flowering (tassel) is actually significantly reduced. Although later corn planting dates are not beneficial overall in terms of yield response, later planting dates will help accelerate emergence out of the ground and the plant will benefit from more measurable GDU’s per day after emergence compared to significantly earlier dates.
There is a point when backing up in maturity does make sense, especially as one moves north. In general, the best chance to approach optimum yield vs. planting date is still achieved by sticking with the normal adapted corn maturity for that area until the last week of May. After that, reducing maturity by about 5 days is justified as we approach June 1st. As we enter the 2nd week of June, reducing maturity by another 5 days is justified. Beyond the 2nd week of June, planting corn is usually not advised. Note that these estimates vary some depending on the individual situation and geography. If we were able to predict a cooler than normal grain filling period (August and early September), then one might error on the side of caution and plant an earlier hybrid the closer we get to June.
Questions regarding corn replant? Several factors come into play but as the calendar moves into the 1st week of June, more times than not, the best choice is to leave your remaining stand. Table 2 from Iowa State University gives estimated yield potential for corn at different final plant populations and planting dates.
Heavy, persistent rains have also delayed soybean planting for several areas of the Hoegemeyer footprint. Take a look at this article from UNL extension in regards to delayed soybean planting decisions and practices. http://cropwatch.unl.edu/delayed-planting-in-soybeans This article uses June 15 as a potential date to consider a 1/2 maturity group reduction (example would be reducing from a 3.5 RM to a 3.0 RM). However, we feel June 20 is a more relevant date for locations south of Interstate 80. As one moves north of Highway 20 in Nebraska and Iowa, June 1st can be used as a potential date for a ½ maturity group reduction (example would be reducing from a 2.5 RM to a 2.0 RM). Past situations would show that fuller season soybeans give the best chance for yield, especially as we move south, for several reasons:
1. Late planted full-season soybeans south of I-80 are not at the same risk of a fall freeze as those planted further north.
2. For the most part, short season soybeans do not move south well. Soybeans are triggered to go into reproductive mode based off daylight. They are more sensitive to photoperiod than corn. There is typically more heat as you move south, but also longer nights. Soybeans that are very early in maturity, that are planted late into a southern zone will potentially be very short and will not produce much for pods or canopy.
3. Fuller season soybeans still have the best potential to capitalize on late season rains come September and early October.
If you have specific questions about your farm, please don’t hesitate to contact someone on our Agronomy team. We are here to ensure the long-term success on your farm!
Hopefully by now most of us are done planting corn and all that is left to work on between rains are the lingering soybean fields. I know in a few areas farmers have been challenged by the cool wet spring and there are some bald patches in fields that will need to replanted, or even planted the first time. While you understandably may be saying to yourself -“I can’t wait for the 2016 planting season to finally be over!”- there is one more important step to take before we park the planter in the shed for the year. The planting process post-mortem.
To be ready for next year, most of us take the time to clean and inspect the planter for damage or to fix wear and tear, but how many of us take the time to think about the process of planting and to record ideas for improvement? This is basically what a post-mortem involves, thinking about any problems you may have run into, how to avoid them and even make improvements in the future. The key to process improvement is becoming disciplined at collecting information. In some cases, with complex processes flowcharting can even be warranted, but at a minimum having a system that works for you to record information and ideas, and taking the time to do so is key.
A good place to start is with your goals, but also asking general diagnostic type questions. For example, did I achieve the desired planting populations, if not why? Are there areas of the fields that I need to pay special attention to as the season progresses or manage differently next year? If I had it to do all over again, would I have started planting in a different field, or if I am contemplating adding to my operation, how would this fit into my planting plans? In theory, the idea of process improvement may seem elementary, but the follow through and execution is where most of us falter. As we all know, each year brings a new set of challenges, so it’s hard to make improvements based on only one year of information. Doing this right requires a long-term commitment to process improvement. A planting post-mortem is like anything else in that you will get out of it what you put into it.
Planting is well underway in the Hoegemeyer footprint and we have corn anywhere from seven leaves or more in Oklahoma to seed that still needs to get in the ground. I have been travelling and looking at fields over the last two weeks across Nebraska, Kansas, Missouri and South Dakota. All areas have had one thing in common — an abundance of moisture. In fields where water could drain, we are seeing some excellent stands in our Hoegemeyer products. In areas where water ponded and low lying fields are the fields where we are seeing some stand issues. Also, some fields planted on Friday, April 15, and Saturday, April 16, seems to be suffering from imbibitional chilling injury. Most of the Hoegemeyer footprint received substantial rain on Sunday, April 17, causing cold and saturated soils. These cold, saturated conditions have caused plants in several fields to leaf out underground resulting in stand loss. Aside from a few stand issues, the 2016 crop just needs a little heat and sunshine, and it will be off to the races. Now is the time to be scouting your fields for stand establishment issues to make sure to set yourself up for a successful harvest. If you have any questions or issues, contact your local Hoegemeyer DSM or Agronomist.
Depending on the specific geography, soybean emergence has either already taken place or soon will as soybean planting has begun to progress over the last week across much of the Hoegemeyer footprint. With some of the significant and frequent rain events along with the potential for some slightly cooler temperatures, it is possible that we may see some minor to moderate visual injury symptoms to fields that have certain pre-emerge herbicides such as the PPO inhibitors and photosynthetic inhibitors applied. Active ingredients for these herbicide groups include sulfrentrazone, saflufenacil, and metribuzin. Pre-emerge herbicides with these active ingredients have become quite popular due to the fact that they are generally quite effective at controlling troublesome small seeded broadleaf weeds that have become resistant to glyphosate (such as waterhemp and several others). Soybeans emerging under cool and wet conditions or when emergence directly coincides with a heavy rain event could be more vulnerable to injury. However, in the vast majority of cases, the visual symptoms which could include seedling stunting and cotyledon necrosis are short lived. The seedlings will typically resume normal growth once environmental conditions improve and the plant is better able to metabolize the herbicide.
ILeVO® fungicide soybean seed treatment (fluopyram) from Bayer Crop Science which was recently approved for commercialization in 2015 is very effective at protecting soybeans from both Sudden Death Syndrome (SDS) as well as Soybean Cyst Nematode (SCN). It is highly systemic into the root and crown of the seedling. Nearly 100% of all seedlings will exhibit minor to moderate visual injury symptoms on the cotyledons at emergence regardless of environmental conditions. Bayer calls this the “halo effect”. The most significant symptoms may take place in fields where ILeVO treated seed was used in conjunction with one of the pre-emerge herbicides listed above, especially under cool and wet conditions. However, once again the bark is often worse than the bite as research is showing that there is most often no impact on final stand or yield! Ironically, it is those cool and wet conditions that are also most favorable for SDS infection soon after planting.
So be aware, but not alarmed if you see what looks like some visual injury symptoms in a field of soybeans at emergence. There are multiple factors that could be playing a part. If you have any questions, be sure to contact your Hoegemeyer DSM or Agronomist.
Note: The vast majority of all Hoegemeyer soybean test plot seed was treated with Right Stand® + ILeVO® this year in order to give our products the best chance at fulfilling genetic potential.
Below are some links to resources including photos that may be useful in preparing for this potential situation.