Are Large Plants Required for High Soybean Yields?
Dennis B. Egli, Crop Physiologist Plant and Soil Sciences, University of Kentucky At first thought it seems completely logical that large soybean plants would produce high yields. In many situations they do. But, as many farmers found when harvesting a field of huge soybeans plants with disappointing yields, sometimes there is no relationship between plant size and yield – as strange as that may seem. Soybean yield is, in large part, determined by how fast plants grow. Variety, weather, row spacing, plant population, nutrients, soil conditions, weeds, diseases and insects all play a role in determining growth rates in the field. If your soybeans are growing in an environment with few limitations, they will grow rapidly, producing large plants and high yields. If there is stress (for example, it’s dry, there is not enough P or K or you have soybean cyst nematode), the plants will grow more slowly, they will be smaller and yield will be reduced. So, here larger soybeans produce higher yi
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- Are Large Plants Required for High Soybean Yields?
