Seedbed preparation attempts to create optimum conditions for germination and healthy vigorous seedlings, and a good stand is crucial for maximizing yields. Without a good stand, all other inputs are less effective, or even a waste. Tillage of wet soils can cause loss of soil structure, compaction, clumping, and poor seed-soil contact. Subsequent seedling emergence would be uneven, with reduced plant stands, and preplant herbicides may even get incorporated poorly. Although little research is available, cold and wet soils increase the potential for root diseases.
Excess moisture creates an almost anaerobic condition.
Germinating seeds need oxygen to grow, and anaerobic conditions weaken the developing seedling making it more susceptible to root diseases. Delayed planting comes with a yield penalty because of the shorter growing season that is left, making an optimum stand even more important. Waiting one or two days can make a large difference when it comes to seedbed preparation. We maintain a page with information about this web server. The University of Minnesota Extension Service is an equal opportunity educator and employer.