Adolescence is the worst. Just ask your corn. Corn plants in the V5 to V7 growth stage may be showing some symptoms of a giant growth spurt — twisted whorls, […]
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 […]
Post emergent herbicide applications are necessary for season long weed control. Post emergent corn herbicide labels define the latest growth stage for which herbicide applications can be made without causing […]
Dr. Erick Larson, Extension grain crop specialist, discusses corn crop development and management strategies as the crop nears the important tassel stage. Recorded May 25, 2018.
Vegetative growth stages of corn or sorghum are determined by counting the number of fully emerged leaves with leaf collars present. Only those leaves which have a leaf collar visible […]
Corn vegetative growth stages are designated by a V with a number following representing fully developed, emerged leaves.
With our cool temperatures, growth has slowed us down a lot with our produce and corn. But this week corn is growing with warm days and sunny skies giving us […]
The occurrence of severe photosynthetic stress (severe drought, extreme heat, severe nutrient deficiency, severe foliar disease) during or shortly after pollination in corn often results in poorly filled ears due […]
In recent weeks, I have received several reports of abnormal ear development in corn fields which are near or at harvest maturity. Affected plants in these fields exhibit varying degrees […]
Corn harvest is fast approaching. This year’s corn maturity is about 5-10 days behind normal. With field dry down occurring in late September and October this year, there is the […]