Corn Newsletter Online

June 5 – June 11, 2018

2018-16

Increasing Variability In Rainfall

Jim Noel

As summer nears, the weather pattern supports an increasing risk of big differences in rainfall totals from too wet to too dry.https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/increasing-variability-rainfall

Early Corn Coloration ? Green, Purple, or Yellow?

Alexander Lindsey, Steve Culman, Peter Thomison Corn seedlings often turn yellow (due to low nitrogen uptake and/or limited chlorophyll synthesis) or purple (reduced root development and/or increased anthocyanin production) under cool, wet conditions. Some hybrids are more likely to increase anthocyanin (purple pigment) content when plants are cool. Yellowing or purpling of corn plants at this stage of development generally has little or no effect on later crop performance or yield potential.https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/early-corn-coloration-?-green-purple-or-yellow

Using PEAQ to Estimate Alfalfa NDF for Multiple Cuttings Rory Lewandowski, CCA, Mark Sulc Much of the region?s alfalfa crop has been harvested over the past two weeks.? As cooler temperatures move into the area regrowth will likely slow down. Once regrowth reaches 16 inches tall again, the NDF (neutral detergent fiber crude protein)?can rapidly be estimated in the field using the predictive equations for alfalfa quality (PEAQ).https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/using-peaq-estimate-alfalfa-ndf-multiple-cuttings

Corn leaf striping often temporary

Steve Culman, Peter Thomison

Leaf striping (interveinal chlorosis) in corn is appearing in many Ohio fields.? There are several nutrient deficiencies (including sulfur, zinc, magnesium, and manganese) that result in leaf striping and some of these look similar. The severity of the striping may vary considerably within a field and may be associated with differences in soil pH, organic matter, compaction, tillage, temperature and moisture. Bright yellow to white interveinal striping running the length of leaves may be the result of ?genetic stripe?, but it?s usually limited to scattered plants within a field.https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/corn-leaf-striping-often-temporary

Weed of the Week: Cressleaf Groundsel

Sarah Noggle

Many questions come into the County Extension Office daily.? Many times those include a question about a weed identification.? During the month of June 2018, OSU Extension will be featuring a weed identification of the week.? This week’s weed is cressleaf groundsel,?Senecio glabellus.?https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/weed-week-cressleaf-groundsel

Agronomic Field Day June 21 at OARDC Northwest Ag Research Station Alan Sundermeier, CCA The public is invited to attend at no cost the 2018 Agronomic Field Day.? It will be held on Thursday, June 21 starting at 9:00 am to 11:30 am.? The location is 4240 Range Line Road, Custar, Ohio, 43511.?

The topics for the field day include:https://agcrops.osu.edu/newsletter/corn-newsletter/2018-16/agronomic-field-day-june-21-oardc-northwest-ag-research-station

EVENTS:

Small Grains Field Day

06/12/2018

https://agcrops.osu.edu/events/small-grains-field-day