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Forests 2014, 5(6), 1331-1340; doi:10.3390/f5061331
Article

Performance of Oak Seedlings Grown under Different Oust® XP Regimes

1,* , 2
 and
3
1 College of Forest Resources, Mississippi State University, 50 E. Pecan St., Ste. B, Grenada, MS 38901, USA 2 College of Forest Resources, Mississippi State University, 775 Stone Blvd., Mississippi State, MS 39762, USA 3 Experimental Statistics Unit, Mississippi State University, 32 Creelman St., Mississippi State, MS 39762, USA
* Author to whom correspondence should be addressed.
Received: 24 March 2014 / Revised: 31 May 2014 / Accepted: 5 June 2014 / Published: 11 June 2014
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Abstract

Herbaceous weed control (HWC) is prescribed for growing season control of vegetative competition in hardwood afforestation attempts on former agricultural areas. Without HWC, planted seedlings often exhibit poor growth and survival. While currently employed HWC methods are proven, there is a substantial void in research comparing HWC treatments spanning multiple years. A total of 4,320 bare-root seedlings of three oak species were planted on three Mississippi sites. All sites were of comparable soils and received above average precipitation for the majority of the three-year study. Eight combinations of HWC and mechanical site preparation were utilized at each site, with 480 seedlings planted in each of the nine blocks, and a total of 1,440 seedlings per species planted across all sites. Treatments were installed on 3.1 m centers, with mechanical treatments as follows: control, subsoiling, bedding, and combination plowing. HWC treatments included one and two-year applications of Oust® XP. Treatments were applied over seedlings post-planting in 1.5 m bands, at a rate of 140.1 g product/hectare. Excepting one species, HWC dependent height or groundline diameter differences were not detected among mechanical treatments, species, HWC regime, or combinations thereof. No survival differences were observed among site preparation treatments or species. However, analysis detected a growing season/HWC treatment interaction for seedling survival.
Keywords: herbaceous weed control; oak afforestation; hardwood plantations; silvicultural treatments; Oust XP treatment herbaceous weed control; oak afforestation; hardwood plantations; silvicultural treatments; Oust XP treatment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Self, A.; Ezell, A.; Rowe, D. Performance of Oak Seedlings Grown under Different Oust® XP Regimes. Forests 2014, 5, 1331-1340.

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