While heated air drying is the fastest way to prepare late harvested crops for storage, bin drying with no/low heat (5 to 10 degrees) is often a more readily available second choice.
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Approximate allowable storage times (days) for corn and soybean in good condition at different temperature (T) and moisture levels based on a ½% dry matter loss, which represents a grade loss.
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The soybean cyst nematode (SCN) causes greater annual yield losses in Kentucky than any other pathogen of soybean. The last time a formal survey was conducted by the University of Kentucky in 2006 and 2007, approximately 76% of soybean fields in the state were infested with SCN.
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We are receiving calls, texts, etc. regarding poor quality soybean seed. Some have asked about grain inspection options. Whether a farmer brings in an inspector or takes them to a grain buyer, the soybeans must be harvested to get a grade rating.
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After soybean plants have matured in the field, many organisms begin to grow and colonize these plants. Rainy weather often promotes growth of and colonization by these organisms. The longer that plants have been sitting in a field after they are mature, the more likely that they will be colonized by all types of organisms. Some of the organisms that are colonizing the soybean plants at this stage are soybean pathogens. The soybean pathogens that are best at colonizing these dead soybean plants generally are also good saprophytes, which means that they are able to grow and obtain nutrients from dead organic matter.
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In 2017, there were several reports of Dectes presence in commercial fields in Webster, Henderson, and McLean counties in Kentucky. Soybean plants infested with Dectes larva or tunneling caused by this insect ranged from 25% to 55% (Villanueva et al. 2017). In 2018, I have received reports of fields infested with this pest from Christian, McLean, and Hickman counties, and from southern Illinois and southern Indiana.
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Although soybean yields have been pretty good this year, the seed quality of harvested soybeans has not been great in some areas of the state. Seed diseases have been prevalent in areas that have received a lot of rain since harvest season began. Phomopsis seed decay (usually caused by Diaporthe longicolla, formerly known as Phomopsis longicolla) and purple seed stain (caused by Cercospora kikuchii and Cercospora flagellaris) are the two main culprits of poor quality seed.
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The excessive rains of September and early October are more than many soybean plants can handle. The wet weather occurred as soybean seeds were at physiological maturity or approaching it. The entire plants were beginning to shut down as their mission of making seed was complete.
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The University of Kentucky Soybean Science Group has published a new Comprehensive Guide to Soybean Management (ID-249) thanks to funding from the Kentucky Soybean Board.
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The month of June has arrived and so too will postemergence soybean applications, many of which are likely to contain the dicamba formulations of Xtendimax, Engenia, or FeXapan. As we approach these coming weeks when many of our dicamba application are likely to be applied it is time to have a refresher on the label restrictions and guidelines for applying these products.
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As we approach the time in which we will be switching from corn planting to soybeans, this compression still holds true as we strive to get soybean into the ground. Under these strenuous conditions there is a tendency to cut out things or skip steps, especially when it comes to weed control and use of pre-emergence herbicides.
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There is a lot of interest this year in second year and even third or more year soybean. If you are thinking about growing continuous soybean this year there are several management decisions you should consider.
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To meet the mandatory dicamba training requirement for applications in Kentucky individuals must attend a training session that has been approved by the Kentucky Department of Agriculture.
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The results of the 2017 Kentucky Soybean Production Contest are now available, with Meredith Farms of Henderson earning the top spot a third year in a row.
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Travis Legleiter shares Herbicide Resistant Soybean Trait Decisions for 2018.
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Recent rains partially flooded several soybean fields across Kentucky. The risk of damage to soybeans is more of a concern for green plants. Soybeans that were brown or tan are less likely to be damaged. The following are some general comments.
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The Kentucky Soybean Board partnered with the University of Kentucky College of Agriculture, Food and Environment to develop an app to help soybean producers accurately calculate and compare the price offered by elevators, with consideration to delivery costs and high-moisture penalties for harvested grain.
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On September 8, during a visit to a commercial soybean farm in McLean County, we found plants with tunnels in their stems caused by the Dectes stem borer. Dectes tunnels were found on 40% of border plants and 55% of inner plants (greater than 250 feet from the field edge).
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