Increase of planting depth
Dimensions of the planting hole and seedling positioning depend on site conditions, species, and stocktype (Ivetić and Devetaković 2016). Planting depth (i.e., distance between the root-collar and the groundline as defined by South 2005) can effect seedling survival. Heat, often confused with drought, and shallow planting are probably the most over looked causes of death of planted bareroot seedlings (Stroempl 1990) and shallow planting, regardless of taproot form, can promote seedling mortality (South 2005). Without rain, deeply planted Pinus echinata Mill. seedlings (11 cm below ground line) survived significantly better than seedlings planted with the root-collar slightly below the groundline (South et al. 2012). Deep-planting techniques promote seedling establishment by immediate exploitation of capillary fringe moisture (Dresen and Fenchel 2010). Effect of planting depth is species specific and the native habitat of a species should be considered (Bryan et al. 2010).
- ↑ Ivetić V, Devetaković J (2016) Reforestation challenges in Southeast Europe facing climate change. Reforesta 1: 178-220. DOI: http://dx.doi.org/10.21750/REFOR.1.10.10
- ↑ 2.0 2.1 South DB (2005) A review of the pull up and leave down methods of planting Loblolly pine. Tree Planters’ Notes 51: 53-67.
- ↑ Stroempl G (1990) Deeper planting of seedlings and transplants increases plantation survival. Tree Planters’ Notes 41: 17-21.
- ↑ South DB, Jackson DP, Starkey TE, Enebak SA (2012) Planting deep increases early survival and growth of Pinus echinata seedlings. The Open Forest Science Journal 5: 33-41.
- ↑ Dreesen DR, Fenchel GA (2010) Deep planting techniques to establish riparian vegetation in arid and semiarid regions. Native Plants Journal 11(1): 15-22.
- ↑ Bryan DL, Arnold MA, Volder A, Watson WT, Lombardini L, Sloan JJ, Valdez-Aguilar LA, Cartmill AD (2010) Transplant season, irrigation, and planting depth effects on landscape establishment of bald cypress and sycamore. Arboriculture and Urban Forestry 36: 57-65.