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Soil Fertility, Growth, and Yield of Young Hybrid Poplar Plantations in Central Pennsylvania

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Abstract:

Relationships among soil and foliar nutrients and tree height growth or unit weight yields were examined for three Populus hybrids that were planted on an Edom silt loam soil in central Pennsylvania at densities ranging from 0.09 to 0.46 m² per tree. Independent of clone and growing space per tree, significant nutrient differences were measured in the soil Ap horizon and tree foliage when sampled at the end of the first and fourth growing seasons. In the soil, the level of extractable P was reduced, the amount of exchangeable Ca and Mg was greater, and the soil cation exchange capacity was higher at the end of the fourth growing season. When compared to the first growing season levels, 4-year-old foliar levels of total N, P, K, and Mg were measurably lower and Ca was notably higher after 4 years. Soil bases (particularly Ca), soil or foliar N, and soil P were important total height and fiber yield determinant variables. FOREST SCI. 23:463-469.

Keywords: Populus; dense plantations; fiber production; genetics; nutrition; short rotations

Document Type: Journal Article

Affiliations: Professor of Silviculture, School of Forest Resources, The Pennsylvania State University

Publication date: 1977-12-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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