The Residual Effects of Lime Added for the Growth of Various Conifers in Minnesota1
- Steve Pawluk and
- Harold F. Arneman2
The liming of sandy soils for the growth of various conifers was studied at the Cloquet Forest Experiment Station in northeastern Minnesota. The soil on which the applications were made belonged to the Omega series which is a Brown Podzolic soil developed from red sandy outwash.
Applications were made prior to planting the tree seedlings, and careful growth records were kept for the following 18 years. The residual effects of the various treatments upon the pH of the soils were also established.
The application rates varying from 4 to 20 tons per acre had no noticeable effect on the rate of growth of the trees. The residual effects of lime upon the pH of the soil varied with the amount applied and the length of time after application. The pH remained higher for longer periods of time in the upper horizons with heavier applications of lime.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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