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Competition control in mid-rotation loblolly pine (Pinus taeda L.) stands

Woody competition during mid-rotation limits available nutrients to crop species. Mid-rotation competition control was evaluated to determine if applications would result in significant increase in growth. Two studies were initiated using herbicides and prescribed burning on mid-rotation loblolly pine plantations. The first study contained afforested stands in Mississippi. Combination of imazapyr and burn was applied. The second study contained reforested sites in Mississippi. Treatments consisted of imazapyr and burn, imazapyr only, burn only, and a control. Five-year post-treatment measurements for the first study showed no significant treatment differences in height, diameter, basal area, or volume growth. Nine-year post-treatment measurements for the second study showed no significant differences in growth using the same measurements. Although previous research has documented significant growth responses to mid-rotation competition control, results from this study demonstrate that increased growth does not always result from mid-rotation competition control, suggesting initial site conditions may dictate degree of response.

Identiferoai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-2124
Date07 August 2010
CreatorsBiasini, Nicholas Tristian
PublisherScholars Junction
Source SetsMississippi State University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceTheses and Dissertations

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