تأثیر تیمار کود بر رشد نهال‌های شیردار (Acer cappadocicum) در نهالستان و عرصه جنگل

نوع مقاله: علمی- پژوهشی

نویسندگان

1 استادیار موسسه تحقیقات جنگلها و مراتع کشور

2 پژوهشگر موسسه تحقیقات جنگلها و مراتع کشور

3 مربی موسسه تحقیقات جنگلها و مراتع کشور

4 کارشناس سازمان جنگلها، مراتع و آبخیزداری کشور

چکیده

تولید نهالهای قوی و مناسب برای موفقیت در جنگلکاری‌ها همواره موردتوجه است. هدف از این بررسی تأثیر کوددهی بر رشد نهالها در نهالستان و جنگل بود. رشد نهال‌های شیردار (Acer cappadocicum) در نهالستان کلاردشت با تیمارهای مختلفی از کودهای شیمیایی (NPK)، دامی و عناصر ریزمغذی در 14 تیمار در قالب طرح آماری بلوک‌های کامل تصادفی در سه تکرار بررسی شد. سپس نهال‌های دوساله به جنگل منتقل شدند و در سه تکرار در قالب طرح بلوک‌های کامل تصادفی کاشته شدند. نتایج اندازه‌گیری رشد نهال‌ها طی چهار سال تحت تیمارهای مختلف در نهالستان اختلاف معنی‌داری را نشان داد، بهطوریکه نهال‌هایی که کود دامی دریافت کرده بودند، از رشد بیشتری برخوردار بودند. بیشترین تأثیر تیمارهای کودی بر رشد نهال‌ها در سال اول رشد در جنگل مشاهده شد و نهال‌های تیمار 14 (ترکیب کود دامی و کود شیمیایی) بیشترین رشد را داشتند. در سال دوم رشد در عرصه، تنها از نظر قطر اختلاف بین تیمارها معنی‏دار بود و نهال‌های تیمارهای 14 و هشت (کود خالص دامی) بیشترین قطر را داشتند. تأثیر تیمارهای کودی در سال‌های بعد کمتر شد. درمجموع می‌توان گفت که اگر در عرصه جنگلکاری علف‌های هرز زیادی وجود دارد و رشد سال اول نهال‌ها برای رقابت اهمیت زیادی دارد، بهتر است در نهالستان از ترکیب کودی شماره 14 (N90P120K90+ کود میکرو+ کود دامی) استفاده شود، در غیراینصورت، دادن کود دامی برای تولید نهال‌های خوب و رشد مناسب در عرصه در شرایط مشابه این آزمایش کفایت خواهد کرد.
 

کلیدواژه‌ها


عنوان مقاله [English]

The effects of nutrient enrichment on nursery and field growth of Cappadocian Maple (Acer cappadocicum) saplings

نویسندگان [English]

  • Ahmad Rahmani 1
  • Majid Hassani 2
  • Mostafa Khoshnevis 3
  • Mohsen Nourshad 4
1 Assistant Prof., Research Institute of Forests and Rangelands, Tehran, I.R. Iran.
2 Research Expert, Research Institute of Forests and Rangelands, Tehran, I.R. Iran.
3 Senior Research Expert, Research Institute of Forests and Rangelands, Tehran, I.R. Iran.
4 Research Expert, Forests, Ranges and Watershed Management Organization, Tehran, I.R. Iran.
چکیده [English]

Growth and nutrient dynamics of bare-root Cappadocian Maple (Acer cappadocicum) seedlings were investigated in a two-year period in a Kelardasht nursery as well as four seasons after field plantation to assess the effects of nursery fertilization regimes. During the nursery period, NPK and Micronutrient (as chemical treatments) and manure (as organic treatment) were used in different dosages. The transplantation was then established in a randomized complete block design with replicates in three blocks. Twenty randomly-selected saplings per treatment were planted in planting holes. In a 4-year period, sapling stem height and diameter were monitored for all saplings at the end of each growth season. In nursery, the greatest sapling growth rate was observed at manure treatment. The results of 2-year nursery rotation showed that the highest height growth of first year after planting saplings was achieved at the treatment comprised of 90 kg/ha N, 120 Kg/h P, 90 Kg/ha K, 30 t/ha manure and 20 L/ha microelement. The largest height and diameter growth of two- and three- year old saplings were achieved at treatments with both chemical and manure. However, no significant difference was shown for those that solely received manure treatment.
 

کلیدواژه‌ها [English]

  • sapling
  • Fertilizer
  • Kelardasht forest
  • Acer cappadocicum
  • nursery
  • Growth
- Braun, J.M. and Byrnes, W.R. 1982. Growth of black walnut in a fertilized plantation. In: Black Walnut for the Future. USDA Forest Service, North Central Research Station, St. Paul, MN, GTR-NC-74: 97-104.

- Burdett, A.N. 1990. Physiological processes in plantation establishment and the development of specifications for forest planting stock. Canadian Journal of Forest Research, 20: 415-427.

- Chang, S.X. 2003. Seedling sweetgum (Liquidambar styraciflua L.) half-sib family response to N and P fertilization: growth, leaf area, net photosynthesis and nutrient uptake. Forest Ecology and Management, 173: 281-291.

- Jacobs, D.F., Ross-Davis, A. and Davis, A.S. 2004. Establishment success of conservation tree plantations in relation to silvicultural practices in Indiana. USA New Forest, 28: 23-36.

- McMillin, J.D. and Wagner, M.R. 1995. Effects of water stress on biomass partitioning of ponderosa pine seedlings during primary root growth and shoot growth periods. Forest Science, 41: 594-610.

- Mirzaei, R., Kambozia, J., Sabahi, H. and Mahdavi, A. 2009. Effect of different organic fertilizers on soil physicochemical properties, production and biomass yield of tomato (Lycopersicon esculentum L.). Iranian Journal of Field Crops Research, 7: 257-268 (In Persian).

- Oliet, J.A., Planelles, R., López, M. and Artero, F. 1997. Efecto de la fertilización en vivero sobre la supervivencia en plantación de Pinus halepensis Mill. Investigaciones Agrarias: Sistema y Recursos Forestales, 8: 207-228 (In Italian).

- Oliet, J., Valdecantos, A., Puértolas, J. and Trubat, R. 2006. Influencia del estado nutricional y el contenido en carbohidratos en el establecimiento de las plantaciones. In: Cortina, J., Penuelas, J.L., Puértolas, J., Vilagrosa, A. and Savé, R. (Eds.), Calidad de planta forestal para la restauración en ambientes Mediterráneos. Estado actual de conocimientos. Organismo Autónomo Parques Nacionales. Ministerio de Medio Ambiente, Madrid: 109-111 (In Italian).

- Rahmani, A. 2009. Investigation on effect of different chemical and manure fertilizers on three forest species seedling at high altitude nurseries and comparing their growth after transplanting into field. Final Report of Research Project, Published by Research Institute of Forest and rangeland, Tehran, Iran, 28p (In Persian).

- Rahmani, A. and Khoshnevis, M. 2005. Effects of different chemical and livestock fertilizers on growth of Caucasian oak seedlings in two nurseries at Caspian Region of Iran. Iranian Journal of Forest and Poplar Research, 13: 1-16 (In Persian).

- Rahmani, A. 2003. Effects of different fertilizers on growth and nutrient uptake of seedlings in two nurseries at Caspian region of Iran. Final Report of Research Project, Published by Research Institute of Forest and Rangeland, Tehran, Iran, 36p (In Persian).

- Reinbott, T.M. and Blevins, D.G. 1999. Phosphorus nutritional effects on root hydraulic conductance, xylem water flow and flux of magnesium and calcium in squash plants. Plant and Soil, 209: 263-273.

- Rietveld, R. 1989. Transplanting stress in bare root conifer seedlings: its development and progression to establishment. Northern Journal of Applied Forestry, 6: 99-107.

- Rubio, G., Zhu, J.M. and Lynch, J.P. 2003. A critical test of the two prevailing theories of plant response to nutrient availability. American Journal of Botany, 90: 143-152.

- Seva, J.P., Valdecantos, A., Vilagrosa, A., Cortina, J., Bellot, J. and Vallejo, V.R. 2000. Seedling morphology and survival in some Mediterranean tree and shrub species. EC Report EUR 19303, Brussels. In: Balabanis, P., Peter, D., Ghazi, A. and Tsogas, M. (Eds.), Mediterranean Desertification. Research Results and Policy Implications, Vol. 2: 397-406.

- Singh, D.K. and Sale, P.W.G. 2000. Growth and potential conductivity of white clover roots in dry soil with increasing phosphorus supply and defoliation frequency. Agronomy Journal, 92: 868-874.

- Struve, D.K. and Joly, R.J. 1992. Transplanted red oak seedlings mediate transplant shock by reducing leaf surface area and altering carbon allocation. Canadian Journal of Forest Research, 22: 1441-1448.

- Trubat, R., Cortina, J. and Vilagrosa, A. 2004. Estado nutricional y establecimiento de especies len˜osas en ambiente semiárido. Cuadernos de la SECF, 17: 245-251 (In Italian).

- Trubat, R., Cortina J. and Vilagrosa, A. 2010. Nursery fertilization affects seedling traits but not field performance in Quercus suber L. Journal of Arid Environments, 74: 491-497.

- van den Driessche, R. 1985. Late-season fertilization, mineral nutrient reserves, and retranslocation in planted Douglas-fir (Pseudotsuga menziesii Mirb.) Franco seedlings. Forest Science, 31: 485-496.

- Santiago, L.S., Wright, S.J., Harms, K.E., Yavitt, J.B., Korine, K., Milton, N., Garcia, M.N. and Turner, B.L. 2012. Tropical tree seedling growth responses to nitrogen, phosphorus and potassium addition. Journal of Ecology, 100: 309-316.

- Vilagrosa, A., Cortina, J., Gil-Pelegrı´n, E. and Bellot, J., 2003. Suitability of drought-preconditioning techniques in Mediterranean climate. Restoration Ecology, 1(1): 208-216.

- Villar-Salvador, P., Planelles, R., Enrique, E. and Pen˜uelas, J.R. 2004. Nursery cultivation regimes, plant functional attributes, and field performance relationships in the Mediterranean oak Quercus ilex L. Forest Ecology and Management, 196: 257-266.

- Wightman, K.E., Shear, T., Goldfarb, B. and Haggar, J. 2001. Nursery and field establishment techniques to improve seedling growth of three Costa Rican hardwoods. New Forests, 22: 75-96.

- Zarinkafsh, M. 2002. Forestry Soil. Published by Research Institute of Forest and Rangeland, 361p (In Persian).