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United States Department of Agriculture

Agricultural Research Service

Title: Integrating Continuous Soil Depth Distributions of Hydrothermal Time, Seeds, and Burial Tolerances to Improve Seedling Emergence Models

Authors
item Forcella, Frank
item Archer, David

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: February 10, 2005
Publication Date: February 10, 2005
Citation: Forcella, F., Archer, D.W. 2005. Integrating continuous soil depth distributions of hydrothermal time, seeds, and burial tolerances to improve seedling emergence models [abstract]. Weed Science Society of America. 45:53.

Technical Abstract: Improvements in seedling emergence models may arise by accounting for variable and depth-specific accumulation of hydrothermal time in seed-bearing zones of soil, as well as tolerances of seed germination and seedling emergence in burial depth and, lastly, distribution of seed densities in soil, which is determined by tillage system. We have accounted for all of these variables in a model for common lambquarters (Chenopodium album L.). The new model appears to have greater universal application than previous models.

Last Modified: 10/22/2014
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