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Effect of Root-Plug Incorporated Controlled-Release Fertilizer on Two-Year Growth and Survival of Planted Ponderosa Pine Seedlings Item Info
![Three controlled-release fertilizers (fast release [FR], moderate release [MR], and slow release [SR]) were incorporated in the root plug at rates of 0.8, 1.6, or 3.2 g/seedling at the time of sowing as supplements to nursery supplied soluble fertilizer. Effects on seedling growth, survival, and foliar nutrient status of the "160/90" container ponderosa pine (Pinus ponderosa) were evaluated after outplanting. At the end of the second growing season, fertilized seedlings had significantly greater diameter and height than unfertilized seedlings. The 3.2 g of MR or SR fertilizer treatments produced significantly higher mortality (55 and 36%, respectively) than the controls. The fast release fertilizer included at a rate of 0.8 g in each seedling's container was the preferred treatment since it produced good survival and seedling growth response. A 2-yr growth response of about 25% was similar to that observed in a nearby study using adjacent placement of controlled-release fertilizer after planting ponderosa pine seedlings.](https://objects.lib.uidaho.edu/forestryresearch/small/forestryresearch931_sm.jpg)
- Title:
- Effect of Root-Plug Incorporated Controlled-Release Fertilizer on Two-Year Growth and Survival of Planted Ponderosa Pine Seedlings
- Creator:
- Moore, J.A.; Fan, Z.; Shafii, B.
- Date Created (ISO Standard):
- 2002
- Description:
- Three controlled-release fertilizers (fast release [FR], moderate release [MR], and slow release [SR]) were incorporated in the root plug at rates of 0.8, 1.6, or 3.2 g/seedling at the time of sowing as supplements to nursery supplied soluble fertilizer. Effects on seedling growth, survival, and foliar nutrient status of the "160/90" container ponderosa pine (Pinus ponderosa) were evaluated after outplanting. At the end of the second growing season, fertilized seedlings had significantly greater diameter and height than unfertilized seedlings. The 3.2 g of MR or SR fertilizer treatments produced significantly higher mortality (55 and 36%, respectively) than the controls. The fast release fertilizer included at a rate of 0.8 g in each seedling's container was the preferred treatment since it produced good survival and seedling growth response. A 2-yr growth response of about 25% was similar to that observed in a nearby study using adjacent placement of controlled-release fertilizer after planting ponderosa pine seedlings.
- Subjects:
- research (document genres) fertilizer timber (lumber) statistics
- Location:
- North and Central Idaho; Eastern Washington; Western Montana; Northeastern Oregon
- Publisher:
- Western Journal of Applied Forestry
- Source:
- Moore, J.A., Z. Fan, and B. Shafii. 2002. Effect of root plug incorporated controlled-release fertilizer upon two-year growth and survival of planted ponderosa pine seedlings. West. J. Appl. For. 17(4):216-219.
- Source Identifier:
- Effect_Root-Plug_Inc_Controlled-Release_Fertilizer_2-Year_Growth_Survival_Planted_PP_Seedlings_WJAF_017_04_2002
- Type:
- Text
- Format:
- application/pdf
Source
- Preferred Citation:
- "Effect of Root-Plug Incorporated Controlled-Release Fertilizer on Two-Year Growth and Survival of Planted Ponderosa Pine Seedlings", Idaho Forestry Research Collection, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/forestryresearch/items/forestryresearch931.html
Rights
- Rights:
- Educational use includes non-commercial use of text and images in materials for teaching and research purposes. Digital reproduction rights granted by University of Idaho Library. For other uses beyond educational use, please contact University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu.
- Standardized Rights:
- http://rightsstatements.org/vocab/InC-EDU/1.0/