Morning guys been out in the field the past couple weeks and been thinking mostly on fungicides, Nitrogen, sulfur, and different microbes, but not necessarily specific microbes this time of year.
I’ve had phone calls the past two days looking at some yellow soybeans and they had manganese deficiency. That kind of brought to my attention that maybe that’s something we need to address to the public and talk with you guys about. Bring a little bit more awareness about when we use it, how we use it, and why we use it.
Here on our farm we’re usually using a six percent EDTA. We’re putting it in furrow or we’re running it with a roundup pass to prevent that yellow flash. Roundup acts as a key later and it’s able to key light the micronutrients in the soil so tight that the plants are not even able to use them. Manganese is the one that’s being affected the worst by that, so adding a little bit of EDTA, manganese, or any form of manganese into your tank mix can really help prevent that yellow flash in a glyphosate application.
Guys that are looking at it in a late season system like this have chances not to put anything in furrow to address manganese, and have not put anything foliar to address manganese yet. That leads us to a fast -acting product like Brant smart manganese, which is also a six percent manganese, but it’s key lighted by a sugar alcohol, so it goes into the plant faster, it is more readily available to that plant, and is less of the slow release effect simply because it is going foliar. Whereas, a six percent manganese EDTA we’re putting in the soil. It can be tied up with the soil chemistry, and we completely lose that Manganese if it’s not key lighted properly with an EDTA.
Looking at beans that are r3 getting closer to r4 With a manganese deficiency that can really affect your pod growth, development, and keeping them on the plant. Addressing that problem as quickly as possible is very important, so putting on a product whether it be a combination product or a standalone manganese product, something like this is very important to help maintain your yield and save what you have left.
Yes, if you’re already showing a manganese deficiency, you’ve left some yield on the table, but addressing the issue as quickly as possible can save what yield you have left and hopefully if you get another rain to bring it out and put some more pods on top of that plant.
When you’re out walking your fields, look for the Intervainal Chlorosis. You’ll have green veins with yellow, yellow inner veins, not to be confused with sudden death. This is a much less drastic looking problem. It’s more of a lighter colored yellow, still having the dark green veins, where sudden death you’ll have crispy edges and crispy going down in between the veins. Starting as yellow, but dying very quickly as the name suggests. When you’re out there looking and you’re seeing a pale spot in your field, not a dead leaf, but just a pale leaf, know that is probably manganese deficiency and there are ways to correct it, just taking action and getting out there and getting something on there to try to correct the deficiency.
So, pay attention out there guys and we’ll see you next time out in the field.