Guidelines for Establishing Poplar Plantations in the North-Central U.S.

Hansen, Edward A.; Netzer, Daniel A.; Tolsted, David N.

doi:10.2737/nc-rn-363

Cited by 21 publications

(17 citation statements)

References 1 publication

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“…Moreover, at these sites soil preparation will destroy the current vegetation cover but an important seedbank remains, which could result in a fast re-establishment of competing vegetation. In the Nordic area, the critical establishment period for conifers is up to 3-4 years after planting [8,9], and vegetation control should also be maintained in poplar plantations for up to 3-4 years to maximize growth [10]. This can be done chemically, mechanically, by tilling or harrowing, or by mulching with wood chips, plastic carpets, or other materials [10,11].…”

Section: Introductionmentioning

confidence: 99%

Exploration of Optimal Agricultural Practices and Seedling Types for Establishing Poplar Plantations

Böhlenius

Övergaard

2015

Forests

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Controlling competing vegetation during early growth is one of the most important practices for the successful establishment of poplar plantations. Today, most poplar plantations in temperate regions are established on abandoned marginal agricultural land where competing vegetation is usually present during the first years after planting. Thus, the objective of this study was to examine how the growth of two kinds of poplar planting materials, un-rooted cuttings and bare-rooted seedlings was influenced by different vegetation control and soil preparation practices. Across treatments, un-rooted cuttings grew more rapidly than the bare-rooted seedlings. Our results also show that mulching with a degradable carpet or permanent polyethylene plastic increased seedling growth to a similar extent and more strongly in the cases of no treatment (in control plots). In addition, the results suggest that soil preparation in the mulched area favored seedling growth, but this effect was restricted to the first year after planting. These findings indicate that optimal practices for establishing poplar plantations on former agricultural land include planting un-rooted cuttings in prepared soil and mulching.

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Section: Introductionmentioning

confidence: 99%

Exploration of Optimal Agricultural Practices and Seedling Types for Establishing Poplar Plantations

Böhlenius

Övergaard

2015

Forests

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“…Based on prior indications that soil temperature affects rooting (ZALESNY et al, 2004;, and recommendations to plant when soil temperature reaches 10°C (HANSEN et al, 1993;HANSEN, 1986), we attempted to begin planting when nighttime soil temperatures reached this threshold. However, this protocol was not maintained given erratic weather conditions, extreme fluctuations in soil temperatures, and required logistics.…”

Section: Clone and Site Selectionmentioning

confidence: 99%

“…Successful establishment of poplar plantations depends upon adequate rooting from hardwood cuttings planted as dormant unrooted stock STANTURF et al, 2001;RIEMENSCHNEIDER and BAUER, 1997;HANSEN et al, 1993). Although additional studies are needed (reviewed by HAISSIG and DAVIS, 1994;HAIS-SIG et al, 1992), the genetics underlying the ability of poplar genotypes to root from cuttings have been studied (BRADSHAW, 1996;RIEMENSCHNEIDER et al, 1996;WILCOX and FARMER, 1968).…”

Section: Introductionmentioning

confidence: 99%

Soil Temperature and Precipitation Affect the Rooting Ability of Dormant Hardwood Cuttings of Populus

Zalesny¹,

Hall

Bauer³

et al. 2005

Silvae Genetica

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In addition to genetic control, responses to environmental stimuli affect the success of rooting. Our objectives were to: 1) assess the variation in rooting ability among 21 Populus clones grown under varying soil temperatures and amounts of precipitation and 2) identify combinations of soil temperature and precipitation that promote rooting. The clones belonged to five genomic groups ([P. trichocarpa Torr. & Gray x P. deltoides Bartr. ex Marsh] x P. deltoides ‘BC’; P. deltoides ‘D’; P. deltoides x P. maximowiczii A. Henry ‘DM’; P. deltoides x P. nigra L. ‘DN’; P. nigra x P. maximowiczii ‘NM’). Cuttings, 20 cm long, were planted in Iowa and Minnesota, USA, in randomized complete blocks at 1.2- x 2.4-m spacing across three planting dates during 2001 and 2002. Soil temperatures were converted to belowground growing degree days (GDD) (base temperature = 10°C) accumulated over 14 days. Genomic groups responded similarly for root dry weight, number of roots, total root length, and mean root length, that increased as belowground GDD increased. Belowground GDD and precipitation governed rooting throughout the 14-d growing period. A minimum of four days above 14°C, along with sufficiently dispersed precipitation (e.g. no more than 3 d without a precipitation event), were needed to sustain aboveaverage rooting. Therefore, we recommend using a base temperature of 14°C for future models estimating belowground GDD in northern temperate zones.

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“…This study investigated whether growing hybrid poplar plantations on tilled former grassland increases soil carbon (Hansen 1993). Existing hybrid poplar plantations were located across the region from eastern North Dakota into central Wisconsin.…”

Section: S O I L Carbonmentioning

confidence: 99%