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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Issue 12 (1952) → Green Manure Crop Causes Seedling Mortality

Green Manure Crop Causes Seedling Mortality

During the past three summers, green manure crops have been grown on most of the available area in the Mason State Tree Nursery located in Central Illinois. The green manure crop consisted of cowpeas or soybeans and sudan grass. This crop was plowed under before it matured seed. This practice was suggested by soils men as a step toward maintaining the soil in an intensively cropped nursery area. The soil is sandy, low in pH, nitrogen, and organic matter. In some cases, red and white pine were seeded following this cover crop. This was done with some misgivings due to published warnings that similar practices had sometimes resulted in seedling mortality. This information seemed to be a little too general and vague to apply to all situations, in view of the fact that the soil needed improvement, and the area was needed for seedling production.


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Author(s): Hugh B. Wycoff

Publication: Tree Planters' Notes - Issue 12 (1952)