By: Greg LaBarge, CPAg/CCA, Ohio State University Extension
A new factsheet highlights eight steps to reducing edge of field P losses while maintain soils for increase crop production. The Phosphorus Nutrient Management for Yield and Reduced P Loss at Edge of Field-AGF-509 (https://ohioline.osu.edu/factsheet/agf-509) highlight practices that can be used to reduce edge of field losses of P. There are eight field specific steps to considered.
- Control erosion
- Identify surface inlets to tile and use appropriate practices to reduce surface losses
- Consider ground and weather conditions prior to application of fertilizer and manure
- Take a representative soil test
- Use soil test as screening tool to meet crop production and water quality goals
- With a soil test P value of 40 PPM Mehlich III or less, you can reduce risk of crop yield losses with nutrient application for crop yield.
By: Emerson Nafziger, Department of Crop Sciences University of Illinois. October 9, 2019. farmdoc daily (9):189
The high number of prevented-planting fields in some areas, the late start to harvest, and the inability to apply P and K fertilizer as planned last fall or this past spring combine to raise a number of questions about fall application of P, K, and lime over the next few months. Continue reading
By: Anne Dorrance, OSU Extension
Harvest is well underway and once the soybeans are off the fields this provides some time to sample soil for the SCN populations. The SCN Coalition theme for the next few years is What’s your number? Do you know which fields have SCN and what the current population is sitting at? Continue reading
By: Jason Hartschuh, CCA, Elizabeth Hawkins, James Morris, Will Hamman, OSU Extension
Thanks to the weather we had this year, corn is variable across fields and in some areas we will be harvesting corn at higher moistures than normal. Stalk quality may also be variable by field and amount of stress the plant was under, see the article Stalk Quality Concerns in this weeks CORN Newsletter. This variability and high moisture may require us to look harder at combine settings to keep the valuable grain going into the bin. Each ¾ pound ear per 1/100 of an acre equals 1 bushel of loss per acre. This is one ear per 6, 30 inch rows in 29 feet of length. Continue reading
By: Peter Thomison, Pierce Paul, OSU Extension
2019 may be an especially challenging year for corn stalk quality in Ohio. Stress conditions
increase the potential for stalk rot that often leads to stalk lodging (Fig. 1). This year persistent rains through June caused unprecedented planting delays. Saturated soils resulted in shallow root systems. Corn plantings in wet soils often resulted in surface and in-furrow compaction further restricting root growth. Since July, limited rainfall in much of the state has stressed corn and marginal root systems have predisposed corn to greater water stress.
By: Harold Watters, CCA, Ohio State University Extension
So this year I am getting even more calls and comments on run away marestail.
“Last year I killed it, this year not so much” is often the remark I hear. And following is my response regarding Horseweed (Conyza canadensis), or Marestail as it is known in Ohio. This may be a new weed to you but the western side of the Ohio and particularly the southwest corner have been fighting it since about 2002. It takes a comprehensive effort, but it can be well managed. Continue reading
By: Mark Loux, OSU Extension
If you have never applied herbicide in fall to burn down winter annuals, or done it only infrequently, this might be the year to make an investment in fall herbicides. Fall treatments are an integral component of marestail management programs. They also prevent problems with dense mats of winter annuals in the spring, which can prevent soil from drying out and warming up, interfere with tillage and planting, and harbor insects and soybean cyst nematode. Continue reading
By: Jim Noel, National Weather Service. Previously published by OSU Extension CORN Newsletter
After another hot week (until late this week), a cool down to normal temperatures is expected starting either Oct. 3 or 4 that will last through Oct. 15. Temperatures are expected to return to above normal (but no where near current levels) from Oct. 15-31.
Rainfall will be above normal in northern Ohio this week. The week of Oct. 7 will be normal or below normal but confidence is next week’s rainfall pattern is low to moderate. Above normal rainfall is in the outlook for the second half of October which could slow harvest after Oct. 15. Continue reading
By: Peter Thomison, Ohio State University Extension
Many corn growers may encounter slower than normal drydown this fall due to late crop development associated with June planting dates. Much of Ohio’s late-planted corn may not achieve black layer until mid-October or later when drying conditions are less favorable for drydown. Once corn achieves physiological maturity (when kernels have obtained maximum dry weight and black layer has formed), it will normally dry approximately 3/4% to 1% per day during favorable drying weather (sunny and breezy) during the early warmer part of the harvest season from mid‑September through late September. By early to mid‑October, dry-down rates will usually drop to ½% to 3/4% per day. Continue reading
By: Andy Michel, Laura Lindsey, Pierce Paul, OSU Extension
With the autumn rapidly approaching, wheat planting is likely to begin soon. Planting after the Hessian fly free date remains the best chance to avoid issues with insects and diseases, as well as helping ensure good agronomic quality. Some benefits of the fly free date:
Hessian Fly: Adults of the Hessian fly lay eggs in emerging wheat. These eggs then hatch into small larvae that feed before spending the winter as a flaxseed. The early autumn feeding will stress the young wheat plant right before the winter, resulting in stunted and wilted plants. Very little egg laying occurs after the fly free date, which helps to limit infestation. Wheat varieties with resistance against the Hessian are available, in addition to seed treatments, which can help limit damage. Continue reading