Blog Archives
Soybean Management Field Days
Every year I look forward to attending the Soybean Management Field Days! I enjoy hearing the latest research-based information and seeing so many of our clientele who attend. We have an excellent opportunity for the Soybean Management Field Days to be held at South Central Ag
Lab near Clay Center on August 16th! I would encourage you to register and to go! If you’ve been to the field days before, changes have been made so that all the demo plots are now research plots-so all the trials will be harvested, data collected, and shared in future meetings and field days. The theme this year is “Growing Nebraska’s Future” and the event will focus on staying competitive in a global marketplace, increasing profits and meeting the world’s growing food and energy needs starting in Nebraska.
Topics include: nutrient management and high yield alternatives; pest management and yield enhancement products; weed management; and marketing and risk management. In addition, UNL Extension’s BIT Mobile will be on hand for participants to visit and learn how to optimize irrigation efficiency and energy use with the SoyWater program. If you have unknown crop problems, please bring along your samples for agronomists and plant disease and insect specialists to look at for no charge.
The field days are sponsored by the Nebraska Soybean Board in partnership with UNL Extension in the University’s Institute of Agriculture and Natural Resources and are funded through checkoff dollars. The efforts of the checkoff are directed by the United Soybean Board promoting effective, efficient, farmer-driven programs. The field days begin with 9 a.m. registration and conclude at 2:30 p.m. Free registration is available the day of the event; it would be helpful to RSVP for meal count to 800-529-8030 or you can let me know by replying to this blog or emailing me at jrees2@unl.edu. More information can be found at http://ardc.unl.edu/soydays. I hope to post the pod cast of this event shortly, but am still working on how to do this!
CropUpdate 7-18-11
While it may be strange, I love the smell of corn pollinating and
don’t mind walking fields this time of year! Summer is flying by but it seems like it’s taken a long time to get to tasseling in our fields this year. Now that corn is tasseling, we can take into account the third foot root zone for irrigation scheduling. There still is moisture to consider in the third foot so continue to check your readings on your irrigation scheduling tools and now take averages for all three feet. You may be surprised as some of you won’t need to water till end of July/beginning of August! If you have any questions about your irrigation scheduling tools, please continue to call any of us Extension educators or the NRD personnel as we want to help you and work with you now to answer them.
Disease just isn’t an issue so far in fields, so for those of you who purchased fungicide, wait till disease is present when you may need it. UNL research by Dr. Tamra Jackson has proven yields are just as good with delayed fungicide applications as they are at tassel. The longer you wait to use it for gray leaf spot, the more chances you will have residual for southern rust when it comes in. While corn prices are high, you want to keep as much of that money as you can! I don’t recommend fungicides on soybeans as we don’t have the disease to warrant it. If you did pre-pay fungicide for soybeans as well, the timing of that application should be R3 (beginning pod).
Soybeans are approaching beginning pod for many of you. For soybeans, this is a critical time for moisture in addition to seed fill at R5. Many irrigation systems were running on beans last week and I just cringed because the time we don’t want to water soybeans is full flower or (R2). The reason for that is because it can create
disease issues. We’ve seen a large increase of sudden death syndrome (SDS) the past few years in our county. Part of that is due to early planting in cold soils, but irrigation during flowering can also play a role. The major disease that occurs when irrigating during flowering is sclerotinia stem rot (also known as white mold). While we have very few cases of this in the area, this disease is one that you don’t want to get started in your fields. Like the fungal pathogen causing SDS, the fungal pathogen causing white mold is soil borne. Thus, once you have it, you can never get rid of it. White mold gets started during R2 when flower petals begin to die and the fungus develops on those dead petals. Wet, humid conditions during flowering are key to fungal development, so in the future, avoid irrigating beans during the flowering stages to avoid problems with these two diseases.
Discussion: Irrigation Scheduling
I’m adding this post as a discussion topic as we get into the growing season for producers to post their irrigation scheduling questions or to share what their sensors and ET gages are reading. With the Nebraska Ag Management Network, we’ve learned that producers often need other producers to check their readings with-kind of like a support group for producers involved with this effort. That’s because it’s hard to not irrigate when neighbors are irrigating and your irrigation scheduling tools are telling you that you don’t need to irrigate! We’ve had some good discussions in the past so I look forward to the discussions this coming year!
JenResources 