Author
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Cooper, Richard |
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Submitted to: Agronomy Abstracts
Publication Type: Abstract Only Publication Acceptance Date: 9/1/1997 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: Broadly adapted soybean varieties tend to be too tall and lodge in very high yield environments and too short in low yielding, stress environments to produce the best yields. To overcome this limitation of broadly adapted varieties, semidwarf soybean varieties and tall drought tolerant soybean varieties, with specific adaptation to the yield extremes, have been developed. On fields with a history of high yield and lodging problems, semidwarf varieties have out-yielded broadly adapted varieties. Conversely, tall drought tolerant varieties have out-yielded broadly adapted varieties on drought prone soils. With the use of yield monitors and global positioning units in precision farming, yield maps can now be generated for each field. With the use of planting equipment that can change varieties and seeding rates on-the-go, farmers who have highly variable soils, now have the option of matching soybean varieties with productivity levels within a field, to take advantage of the higher yield potential of soybean varieties with specific adaptation. |
