Ignacio Ciampitt – Soybean Update

(Ignacio) So again we are on the north farm, Kansas State University main campus and here we are looking at a field of soybeans. What we are looking for soybeans from now on until harvest, what we are seeing is that soybeans around the state, they are already finished all the pod set, we are almost in that stage, so we can just right now have a very fair number of how many pods we have per plant. So the final stage on the soybean production from now on until harvest will define a very important factor for soybeans, which is the seed size. Most of the times seed size is one of the primary factors that we can see on the soybeans and seed size can impact soybean yields and it can impact soybeans in about almost 50 percent. So when we
are looking and comparing side by side soybeans with corn and sorghum, we always need to remember that soybeans specifically are very sensitive at this stage. So, when we are looking at about how much of the yield we define until today, we can probably say that we have 50 percent of the yield already defined. And we are looking in the next coming weeks to define the other 50 percent, remaining percent of the yields on soybeans. So everything impacting soybeans from now until harvest will have a huge impact on yields. As we were talking about corn and sorghum, corn is already in the indenting stage, sorghum is on coloring stage. On those stages any stress, talking about heat or drought or hailstorm or any insects or any disease pressure is impacting yields. But the yield impact will be probably very minimal as compared with soybeans. Soybeans they really suffer, a lot of impacting yields at these specific stages. So right now when you take a look to some of your soybean crops, it’s probably a good idea just to go ahead and look to the number of pods that we have inside of each plant, quantify the number of pods, make sure that the soybeans look clean. In some areas, in some situations around the state we are seeing some problems with Dectes Stem Borer. We are seeing some plants are affected by the insects. And those insects tend just to affect in some way they burn the leaves. And the way to identify them is you will see some of the leaves that they are dry. So, when you are seeing leaves that are still attached to the plant and they are quite dry, this is one of the things that you start… at least probably will be a symptom that provides some idea of saying that yeah, you have some impact at this moment. Another thing with the late season rains that we are having right now until harvest is that we need to put specifically and a special attention to any kind of
a soybean foliar diseases. So at the moment right here this soybean looks quite clean. We are seeing that we are not seeing so much impact on the green leaf area and that’s one of the main points that we need to put all this scout, we need to scout for, to take a look to see if you have some impact or not on the green leaf area here. We can see some maybe effect of some disease. It’s very minimum, but in general when we are looking to the leaves, that incidence is probably very small, less than about five percent. So we are looking to a high level of incidence of foliar disease and that’s one of the things that we are scouting for at this moment. So, for everyone, from now on until the next probably three-four weeks just go
out take a look to your soybeans and make sure that we can scout for disease, insects, any kind of issue that will be facing soybeans, impacting seed weight and finally will impact the final yield.

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