Jim Specht - Emeritus Professor of Agronomy

Photos of canopy closure based on various planting dates
Figure 3. Canopy cover in early July for each planting date in a 2015 Nebraska study. Authors note that fields that have closed canopy and are "green to the eye by the 4th of July" make the best use of sunlight to generate top yields.PD = planting date.

Early Bird Gets the Worm: Benefits of Early Soybean Planting

April 20, 2016
Weather during the growing season (sunlight, temperature, and rainfall) will ultimately determine the soybean yield potential in a given year. While it is difficult to predict the weather ahead, you have an opportunity to manage your planting date to increase the odds of achieving a higher yield in 2016.

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Soybean Seeding Rate Tips

April 20, 2016

Numerous soybean seeding rate studies have indicated that a final plant population of about 80,000 to 120,000 plants per acre is likely sufficient for ensuring an economic return, with the latter being based on weighing the slightly higher yield potential with higher final pl

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Thermometer taking temperature of residue-covered soil
Taking the soil temperature

Three Key Considerations for Planting Corn and Soybeans

April 15, 2016
Planting as early as possible allows your crop to collect solar radiation sooner; however, the practice comes with some risks which need to be weighed against the benefit.

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Corn seedlings under water in field

Corn and Soybean Survival in Saturated and Flooded Soils

May 24, 2024
Several factors affect corn and soybean survival in flooded soils at early season growth stages. This Nebraska Extension article reviews considerations for growers concerned about impacts to seed germination for these crops.

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