scholarly journals Vegetation control and fertilization in midrotation Pinus taeda stands in the southeastern United States

2003 ◽  
Vol 60 (7) ◽  
pp. 619-624 ◽  
Author(s):  
Timothy J. Albaugh ◽  
H. Lee Allen ◽  
Bruce R. Zutter ◽  
Harold E. Quicke
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Southeastern United States ◽  
Vegetation Control

Midrotation Vegetation Control and Fertilization Response in Pinus taeda and Pinus elliottii across the Southeastern United States

2012 ◽  
Vol 36 (1) ◽  
pp. 44-53 ◽  
Author(s):  
Timothy J. Albaugh ◽  
Jose L. Stape ◽  
Thomas R. Fox ◽  
Rafael A. Rubilar ◽  
H. Lee Allen
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Southeastern United States ◽  
Pinus Elliottii ◽  
Vegetation Control

Preemergence Weed Control in Southeastern Forest Nurseries

Weed Science ◽  
1973 ◽  
Vol 21 (4) ◽  
pp. 363-366 ◽  
Author(s):  
T. R. Dill ◽  
M. C. Carter
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Weed Control ◽  
Loblolly Pine ◽  
Southeastern United States ◽  
Pinus Elliottii ◽  
Slash Pine ◽  
High Rate ◽  
Forest Nurseries ◽  
Low Rate

Weed control trials were conducted on loblolly pine (Pinus taedaL.) or slash pine (Pinus elliottiiEngelm.) seedbeds at 12 locations in the southeastern United States. Good weed control was obtained from 2,4-bis-(isopropylamino)-6-(methylthio)-s-triazine (prometryne) at 2.2 and 4.5 kg/ha;N,N-dimethyl-2,2-diphenylacetamide (diphenamid) at 4.5 and 9 kg/ha; α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) at 1.1 and 2.2 kg/ha; and 2-ethylthio-4,6-bis-isopropylamino-s-triazine (GS-16068) at 2.2 and 4.5 kg/ha as preemergence applications immediately followed by irrigation. Diphenamid and trifluralin treatments were not injurious to either pine species at either rate. GS-16068 was only slightly injurious at the high rate at one location. Prometryne was injurious at two locations at the high rate and at one location at the low rate.

A 50-Year Retrospective of the Forest Productivity Cooperative in the Southeastern United States: Regionwide Trials

2020 ◽  
Author(s):  
David R Carter ◽  
H Lee Allen ◽  
Thomas R Fox ◽  
Timothy J Albaugh ◽  
Rafael A Rubilar ◽  
...  
Keyword(s):  
United States ◽  
Loblolly Pine ◽  
Southeastern United States ◽  
50Th Anniversary ◽  
Forest Productivity ◽  
Site Preparation ◽  
Growth Responses ◽  
Area Index ◽  
Vegetation Control ◽  
Intensively Managed

Abstract In 2019, the Forest Productivity Cooperative (FPC) celebrated its 50th anniversary. The mission of the FPC is and has been creating innovative solutions to enhance forest productivity and value through the sustainable management of site resources. This industry-government-university partnership has generated seminal research with sweeping implications for increasing productivity throughout the southeastern United States and Latin America. To commemorate this semicentennial, we highlighted some of the pivotal findings in the southeastern United States from the past 50 years derived from our large, regional experiments: regionwide trials. Study Implications: Fifty years of research have yielded substantial management implications for intensively managed loblolly pine in the southeastern United States. Some of our most impactful findings are the following: our generalized fertilization rate of 200 lb ac−1 elemental N and 25 lb ac−1 elemental P has been found to increase growth on most plantations in the region when applied at or before midrotation, whereas the addition of K and micronutrients was found to be important on the Pleistocene Terraces. Stands with a leaf area index (LAI) less than 3.5 will respond to fertilization, increasingly, so the lower the initial LAI. Our long-term site preparation studies demonstrated the importance of pairing optimal site preparation with fertilization and that subsoiling and tillage typically yielded lesser gains than fertilization and vegetation control at establishment. Fertilization tends to be more important to growth responses at midrotation than onetime vegetation control treatments, but an additive response when the two treatments are applied together is generally experienced. When fertilization is paired with thinning, the rate of postthinning diameter growth is accelerated.

Soil change and loblolly pine (Pinus taeda) seedling growth following site preparation tillage in the Upper Coastal Plain of the southeastern United States

2007 ◽  
Vol 242 (2-3) ◽  
pp. 558-568 ◽  
Author(s):  
M. Chad Lincoln ◽  
Rodney E. Will ◽  
Lawrence A. Morris ◽  
Emily A. Carter ◽  
Daniel Markewitz ◽  
...  
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Seedling Growth ◽  
Loblolly Pine ◽  
Coastal Plain ◽  
Southeastern United States ◽  
Site Preparation

Songbird Breeding Season Use of Pine Plantations Treated Chemically for Herbaceous Vegetation Control

2011 ◽  
Vol 2 (1) ◽  
pp. 99-105
Author(s):  
Patrick D. Keyser ◽  
J. Drew Lanham ◽  
Victor L. Ford
Keyword(s):  
United States ◽  
Breeding Season ◽  
Southeastern United States ◽  
Pine Plantations ◽  
Individual Species ◽  
Population Declines ◽  
Herbaceous Vegetation ◽  
Vegetation Control ◽  
Herbicide Treatment

Abstract Pine plantations, a common early successional habitat in the southeastern United States, have been subject in recent years to increased use of herbicides to control herbaceous vegetation immediately postestablishment. Such treatments may affect songbird use during the breeding season, but studies documenting bird response are limited. Furthermore, songbirds that breed in early successional habitats have experienced sustained population declines in recent decades. Therefore, we examined the influence of herbaceous vegetation control on songbird use during the breeding season within pine plantations on the Piedmont Plateau in Virginia. We evaluated 35 plantations characterized by one of five treatments: herbaceous vegetation control applied during the establishment year and that were 1, 2, or 3 y old when sampled, and those that had not received herbaceous vegetation control at establishment and that were 1 or 2 y old when sampled. There was no difference (P > 0.05) in detections of birds between plantations with and without herbicide treatment. However, 1-y-old plantations (both treated and untreated) had fewer detections (P < 0.05) than 2-y-old plantations for 3 individual species and for all 16 species combined.

scholarly journals Validation of an Integrated Estimation of Loblolly Pine (Pinus taeda L.) Leaf Area Index (LAI) Using Two Indirect Optical Methods in the Southeastern United States

2008 ◽  
Vol 32 (3) ◽  
pp. 101-110 ◽  
Author(s):  
John S. Iiames ◽  
Russell Congalton ◽  
Andrew Pilant ◽  
Timothy Lewis
Keyword(s):  
United States ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Southeastern United States ◽  
Area Ratio ◽  
Allometric Equations ◽  
Area Index ◽  
Whole Tree

Abstract Quality assessment of satellite-derived leaf area index (LAI) products requires appropriate ground measurements for validation. Since the National Aeronautics and Space Administration launch of Terra (1999) and Aqua (2001), 1-km, 8-day composited retrievals of LAI have been produced for six biome classes worldwide. The evergreen needle leaf biome has been examined at numerous validation sites, but the dominant commercial species in the southeastern United States, loblolly pine (Pinus taeda), has not been investigated. The objective of this research was to evaluate an in situ optical LAI estimation technique combining measurements from the Tracing Radiation and Architecture of Canopies (TRAC) optical sensor and digital hemispherical photography (DHP) in the southeastern US P.taeda forests. Stand-level LAI estimated from allometric regression equations developed from whole-tree harvest data were compared to TRAC–DHP optical LAI estimates at a study site located in the North Carolina Sandhills Region. Within-shoot clumping, (i.e., the needle-to-shoot area ratio [γE]) was estimated at 1.21 and fell within the range of previously reported values for coniferous species (1.2–2.1). The woody-to-total area ratio (α = 0.31) was within the range of other published results (0.11–0.34). Overall, the indirect optical TRAC–DHP method of determining LAI was similar to LAI estimates that had been derived from allometric equations from whole-tree harvests. The TRAC–DHP yielded a value 0.14 LAI units below that retrieved from stand-level whole-tree harvest allometric equations. DHP alone yielded the best LAI estimate, a 0.04 LAI unit differential compared with the same allometrically derived LAI.

scholarly journals Herbicides for Weed Control in Eucalyptus Culture

EDIS ◽  
2013 ◽  
Vol 2013 (6) ◽  
Author(s):  
Anna Osiecka ◽  
Patrick Minogue
Keyword(s):  
United States ◽  
Weed Control ◽  
Southeastern United States ◽  
Forest Resources ◽  
Eucalyptus Species ◽  
Vegetation Control ◽  
Fast Growing ◽  
The World ◽  
Ornamental Trees ◽  
Hybrid Clones

Eucalyptus is a diverse genus with over 700 species, most of which are native to Australia. Numerous Eucalyptus species and hybrid clones have been introduced in temperate climates throughout the world and grown as ornamental trees as well as for fuel and fiber. There is renewed interest in planting this fast-growing tree in the southeastern United States for mulch, pulpwood, and bioenergy. However, several silvicultural challenges exist, and competing vegetation control is a significant one. This 7-page fact sheet was written by Anna Osiecka and Patrick Minogue and published by the UF Department of School of Forest Resources and Conservation, February 2013. http://edis.ifas.ufl.edu/fr378

scholarly journals Pollination Bag Type Has a Significant Impact on Cone Survival in Mass Production of Controlled Pollinated Seeds in Loblolly Pine

2020 ◽  
Vol 66 (5) ◽  
pp. 589-599
Author(s):  
Austin J Heine ◽  
Trevor D Walker ◽  
Steven E McKeand ◽  
Jackson B Jett ◽  
Fikret Isik
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Mass Production ◽  
Southeastern United States ◽  
Seed Orchard ◽  
Kraft Paper ◽  
Industry Standard ◽  
Sib Families ◽  
Pinus Taeda L

Abstract Since 2009, deployment of full-sib families of loblolly pine (Pinus taeda L.) has gained prominence in the southeastern United States. To produce full-sib seed, a pollination bag is used to isolate female strobili from outside pollen contamination, and a known pollen is applied at the time of maximum female strobilus receptivity. The goal of this study was to compare prototype pollination bags made by PBS International to the industry standard kraft paper pollination bag with and without a support wire for female strobili survival and to assess their efficiency for mass production of controlled cross loblolly pine seed. A multiyear study compared 13 pollination bag types at more than nine seed orchard sites across the southeastern United States. There were significant differences among bag types for conelet survival at the time of bag removal that persisted until cone harvest 18 months later. Female strobili bagged in prototype PBS-I2 were over three times more likely to survive to cone harvest than strobili inside the traditional kraft pollination bag. Two of the PBS bag types had the highest estimated filled seed per bag. One PBS bag was faster to install and remove than the kraft paper bag with a support wire.

Growth and survival of Pinus taeda in response to surface and subsurface tillage in the southeastern United States

2006 ◽  
Vol 234 (1-3) ◽  
pp. 209-217 ◽  
Author(s):  
Colleen A. Carlson ◽  
Thomas R. Fox ◽  
Steve R. Colbert ◽  
Daniel L. Kelting ◽  
H. Lee Allen ◽  
...  
Keyword(s):  
United States ◽  
Pinus Taeda ◽  
Southeastern United States ◽  
Growth And Survival
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