Ignacio Corn

(Ignacio) Good morning. My name is Dr. Ignacio Ciampitti, I’m a Cropping Systems Specialist for Kansas State University. And today, this morning we are on the Agronomy Farm here at Manhattan, the Kansas State Main Campus. And we are just looking to our corn. Here just behind me I have corn that we have for demonstration purposes. And looking at the corn conditions around the state, we are seeing very different situations. As related to the corn phenology and the growth stages, some areas of the state are getting too close to seeking, and we have around 15 to 20 percent of the state that the corn is getting to those stages. What are the main issues that producers and farmers are looking at at this point? Some of the situations and production issues of course that we are getting are related to herbicide applications. When is it too late to apply herbicide? And one of the things that we need to realize at some point when we are getting way too close to flowering time, those herbicides can make some impact on the ear formation. We have very good information on abnormal corn ears and we have information about how herbicide and all off label applications can produce some abnormalities in those ears. So, always try to follow the labels and make sure that you are just taking care of that situation. Some of the other issues that we are facing too in this specific growing season is in this situation here is that corn that was not planted that late, but instead we are seeing that the corn is almost sitting there, it’s not very tall. So evolution of the corn in these situations was being very, very slow in May and June. We have less heat units than previous years, so most of the times we’ll be seeing that we will be getting some of the pollination by 50, 60, 70 percent pollination around the mid-July. So, one of the things to check around those situations might be some stress conditions and drought, heat might impact pollination and might reduce yields. Basically impacting the potential number of grain and the actual final kernel number. Some of these things we are seeing here is a very lack of uniformity in corn. So here also you can also you can get to see in some areas, plants that are very tiny, very small. And then we have just right beside, plants that are very big. That is a very clear pattern around the state. I went south and north, we are seeing very clear situations about lack of uniformity. Questions are, how is that impacting yields? We always know lack of uniformity can impact yields from five to ten percent and it can be even worse if you are also missing plants inside of the fields and we’re not getting an entire population. These are some of the things that we are seeing around the corn conditions at this point. I think that if we get at least some precipitation in the next coming weeks, before pollination, I think that we are in very good shape for getting through that stage and trying to finalize the corn in the next coming months.

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