Monday, April 10, 2017
Pecan bud break influenced by soil type
The twig of the left comes from a tree growing in an Osage silty clay. In contrast, the twig on the right is from a Kanza tree growing in a Cherokee silt loam. Both soils originated as river deposited sediments. The Osage soil is a true river bottom "gumbo" soil while the Cherokee soil is a lighter textured second bottom soil.
The greater the clay content of a soil, the slower that soil warms in the spring. Cold soil inhibits the growth of new roots and with slower root activity bud break is delayed.