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Stay Vigilant for Red Crown Rot of Soybean
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-28/stay-vigilant-red-crown-rot-soybean
Also look for small, brick red perithecia (fungal sexual structure) on the lower stem or root crown ... Laboratory in Columbus. To submit samples, dig out 3-5 symptomatic plants including the roots, place them in ...
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Scout for Soybean Diseases in Ohio
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-26/scout-soybean-diseases-ohio
plants (including roots), placed them in a plastic bag, complete the SDS submission form, and submit them ... Mold, and Phytophthora Root and Stem Rot Weather conditions are favorable for development of white mold, ... affected by Phytophthora root and stem rot. Commonly, these samples come from fields with poor drainage. ...
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Alfalfa Fall Rest and Planning the Last Harvest
and roots during the fall. Cold-hardening processes also occur that increase plants' resistance ... root and crown diseases are setting in. Alfalfa that has been cut three or more times before a fall ...
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Smoke from Wildfires Affecting Ohio Agriculture? Or Some Other Stressors?
are often indicative of poor nodulation (Figure 1). Nodules are small knots found on roots, often near ... the top of the root system. Nodules are the result of a symbiotic relationship between soybean and ... is being fixed. 2. Overall slow growth and poor root development. While cooler weather in April and ...
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Sudden Death Syndrome of Soybean in Ohio
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-27/sudden-death-syndrome-soybean-ohio
causal agent. To submit samples, dig out three to five symptomatic plants (including roots), placed them ...
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What the…Maggots in Corn?
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-27/what-%E2%80%A6maggots-corn
agricultural and horticultural habitats. The hover fly adult is often mistaken for a bee, because of yellow ...
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Potassium in Corn
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-20/potassium-corn
by diffusion where nutrients move to the root surface along a concentration gradient from high to low ... concentration. The effect of dry weather on root growth results in potassium deficiency symptoms. Other ... conditions such as compaction, herbicide root injury, or insect damage can compound root development issues ...
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Battle for the Belt: Episode 23
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-27/battle-belt-episode-23
an area of low potassium concentration at the root). Diffusion will only occur when soil moisture is ... present. Therefore, the soil may contain potassium but does not have the means to move it to the root and ...
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Consideration for Corn N Management under Dry Soil Conditions
N gets to the root system for uptake. Mass flow is the primary mechanism for nitrogen (also sulfur, ... magnesium, and calcium). Mass flow is where nutrients in soil solution move toward the root as the plant ... root system. Root growth will slow in dry soils, the situation we are now experiencing in the upper ...
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Battle for the Belt: Episode 24
https://agcrops.osu.edu/newsletter/corn-newsletter/2023-28/battle-belt-episode-24
is a graduate student in the department of Horticulture and Crop science at Ohio State University. ...