How fast do soybeans dry down during the preharvest time?

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2017-09-19
Authors
Martinez-Feria, Rafael
Archontoulis, Sotirios
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Licht, Mark
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Agronomy

The Department of Agronomy seeks to teach the study of the farm-field, its crops, and its science and management. It originally consisted of three sub-departments to do this: Soils, Farm-Crops, and Agricultural Engineering (which became its own department in 1907). Today, the department teaches crop sciences and breeding, soil sciences, meteorology, agroecology, and biotechnology.

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The Department of Agronomy was formed in 1902. From 1917 to 1935 it was known as the Department of Farm Crops and Soils.

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1902–present

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  • Department of Farm Crops and Soils (1917–1935)

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Abstract

Soybean fields are nearing maturing across Iowa with minimal delay compared to 2016 due to cool temperatures. However, soybean sensitivity to day length speeds up crop development towards physiological maturity. During this time, senescence is occurring and carbohydrates are being converted to oils. Soybean seed moisture changes very little and remains near 60 percent during the de-greening period. As the pods turn to mature color at the beginning of maturity stage (R7), seed dry matter accumulation is complete and seed moisture rapidly decreases.

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This article is published as Martinez-Feria, R., S. Archontoulis, and M. Licht. 2017. How fast do soybeans dry down during the preharvest time? ISA Research Advance, Iowa Soybean Association, Ankeny, IA. Posted with permission.

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Sun Jan 01 00:00:00 UTC 2017
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