The Effects of Organic Surface Amendments on Soil Nutrients and Initial Tree Establishment

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This study examined the effects of replicating woodland soil surface horizonation on the nutrient status of underlying soils and the initial establishment and growth of trees. A total of 283 container grown trees were planted in a bufferzone around a future landfill site. Control amendments consisted of an 8 cm layer (0.5 m3) of wood chips applied in a circular area of 4.6 m2 around the trees' planting pit. For the treatment, a 2.5 cm layer of composted biosolids (0.15 m3 or 80 Mg/ha) was applied in a circular area of 4.6 m2 around the trees' planting pit followed by ... continued below

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vii, 218 leaves : ill., map

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Thuesen, Kevin (Kevin Andrew) May 1999.

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  • Thuesen, Kevin (Kevin Andrew)

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This study examined the effects of replicating woodland soil surface horizonation on the nutrient status of underlying soils and the initial establishment and growth of trees. A total of 283 container grown trees were planted in a bufferzone around a future landfill site. Control amendments consisted of an 8 cm layer (0.5 m3) of wood chips applied in a circular area of 4.6 m2 around the trees' planting pit. For the treatment, a 2.5 cm layer of composted biosolids (0.15 m3 or 80 Mg/ha) was applied in a circular area of 4.6 m2 around the trees' planting pit followed by an 8 cm layer (0.5 m3) of wood chips. The results indicate that the replication of woodland soil surface attributes using composted biosolids can significantly improve the nutrient status of underlying soil. Some significant effects were seen under control conditions, too. However, the effects on tree establishment and growth parameters were, for the most part, not statistically significant.

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vii, 218 leaves : ill., map

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  • May 1999

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  • March 24, 2014, 8:07 p.m.

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Thuesen, Kevin (Kevin Andrew). The Effects of Organic Surface Amendments on Soil Nutrients and Initial Tree Establishment, dissertation, May 1999; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc277585/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .