Abraham B, Taye B, Mesfin K (2014). The effect of NP fertilizer rates on the yield and yield components of Ginger (Zingiber offcinale Rosc.) in Kindo-Koysha Woreda; Wolaita, South Ethiopia. Journal of Natural Sciences Research 4(16):48-52.

Aggarwal P, Garrity D, Liboon S, Morris R (1992). Resource use and plant interaction in a rice and mung bean intercrop. Agronomy Journal 84(1):71-78.
Crossref

Ali MMK, Hasan MA, Islam MR (2015). Influence of fertilizer levels on the growth and yield of Black Cumin (Nigella sativa L.). A Scientific Journal of Krishi Foundation, The Agriculturists 13(2):97-104.
Crossref

Anteneh N, Taye K (2015). Intercropping of Arabica Coffee with Turmeric (Curcuma longa L.) and Ginger (Zingiber officinale Rose) in Tepi Ethiopia. Journal of Biology, Agriculture and Healthcare 5(7):65-68.

Baumann T, Bastiaans L, Kropff M (2002). Intercropping system optimization for yield, quality, and weed suppression combining mechanistic and descriptive models. Agronomy Journal 94:734-742.
Crossref

Behailu M, Shiferaw T, Essubalew GS, Anteneh N, Girma H (2020). Intercropping Coffee (Coffea arabica) and Korarima (Aframomum corrorima (Braun) P.C.M. Jansen) at Tepi, Southwest Ethiopia. American Journal of Agriculture and Forestry 8(4):175-180.
Crossref

Bhardwaj, RL (2014). Effect of growing media on seed germination and seedling growth of papaya cv. 'Red lady'. African Journal of Plant Science 8(4):178-184.
Crossref

Borget M (1993). Spice Plants. The Tropical Agriculturalist. CTA, Macmillan, London.

Digafie T (2006). Influence of growth media and physiological conditions of the stock plant on root and sprout development of black pepper (Piper nigrum L.). MSc. thesis presented to School of Graduate Studies of Alemaya Agricultural University P. 70.

Ebrie Y, Amsalu N, Ali M, Merkebu G (2015). Effect of Nitrogen and phosphorus fertilizers on growth, yield and yield components of Black Cumin (Nigella sativa L.) at Konta district, Southwest Ethiopia. Journal of Agronomy 14(3):112-120.
Crossref

Edossa E (1998a). Spices research achievements and experiences. Research Report No. 33. Institute of Agricultural Research, Addis Ababa Ethiopia.

Edossa E (1998b). Recommendation for spices production in humid areas of Ethiopia. In: Beyene Seboka and Abera Deressa (eds.). Agricultural Research and Technology Transfer Attempts and Achievements in Western Ethiopia. Proceedings of the 3rd Technology Generation, Transfer and Gap Analysis Workshop, 12-14 Nov. 1996, Nekemt, Ethiopia.

Ellis N, Deffi A, Binti R (2017). Evaluation of physiological characteristics of curcuma (Curcuma xanthorhizha Roxb.) on various intercropping patterns with soybean [Gglycine max (L.) Merrill]. International Journal of Plant Biology 8(1):19-22.
Crossref

Girma H, Habtewold K, Haimanot M (2016). Spices research achievements, challenges and future prospects in Ethiopia. Academic Research Journal of Agricultural Science and Research 4(1):9-17.

Girma H, Mesfin S (2016). Influence of Different Storage Methods on the Viability and Field Establishment of Seed Rhizome Ginger (Zingiber officinale Rosc.) in Ethiopia. Academic Research Journal of Agricultural Science and Research 4(4):117-123.

Girma H, Kindie T (2008). The effects of seed rhizome size on the growth and yield and economic return of Ginger (Zingiber officinale Rosc.), Asian Journal of Plant Sciences 7(2):213-217.
Crossref

Girma H, Digafie T, Wondyifraw T, Henok YB (2008). Spices in coffee-based farming systems of southwestern Ethiopia, In: Girma A, Bayetta B, Tesfaye S, Endale T, Taye K (eds.) Coffee diversity and knowledge, proceedings of a national workshop, four decades of coffee research and development in Ethiopia, 14-17 August, 2007; Addis Ababa (Ghion Hotel), Ethiopia, pp. 431-442.

Habetewold K, Wakjira G (2017). Critical time of weed competition and evaluation of weed management techniques on Turmeric (Curcuma longa L.) in Tepi, Southwest Ethiopia. International Journal of Research Studies in Agricultural Sciences 3(7):15-22.
Crossref

Habetewold K, Tadesse E, Hailemariam A (2015). Critical time of weed competition and evaluation of weed management techniques on Ginger (Zingiber officinale Rosc.) in Tepi, in Southwest Ethiopia. International Journal of Research Studies in Agricultural Sciences 1(3):5-10.

Habetewold K, Demes F, Tewodros L, Dejene B, Haimanot M, Wakjira G (2017). Seed spices production guideline: Ethiopian Institute of Agricultural Research: 

Hassen S, Tsegaye M, Getachew S, Abebe A, Biruk H (2019). Enhancement of seed germination and seedling growth of Cardamom (Eletteria cardamomum) at Tepi, Southwestern Part of Ethiopia. The Academic Research Journal of Agricultural Science and Research 7(6):303-306.

IAR (1985). Institute of Agricultural Research, Jimma Research Center, Tepi Agricultural Research S/Center, Horticulture Research Division Progress report for the period 1980/81 - 1982/83, 1983/84, 1984/5, 85/6 and 1986 - 1991, Addis Ababa Ethiopia.

Jafer D (2016). Effect of potting media and watering frequency on dry matter production and Distribution of Seedling of Korarima (Aframomum cororima (Braun) P.C.M. Jansen). International Journal of Research Studies in Agricultural Sciences 2(8):19-26.
Crossref

Jafer D (2019). Effect of seed treatment and nursery potting media on emergence and seedling growth of Korarima (Aframomum cororima (Braun) P.C.M. Jansen). International Journal of Research Studies in Science, Engineering and Technology 6(12):20-30.

Lupi A, Temtme S (2015). Determination of optimum rate of nitrogen and phosphorous fertilizers for the yield and yield components of turmeric (Curcuma longa L.) on Nitisols at Yaki Woreda southwestern Ethiopia. Journal of Agricultural Science Research 3(10):289-295.

Lupi A, Mitiku T, Temtme S, Mekonnen B, Yaziz B, Hailemichael G, Wodajo M (2016). Influence of rooting media on nursery performance of Korarima (Aframomum corrorima) at Tepi, Southwestern part of Ethiopia. Journal of Horticulture 3(1):1-4.
Crossref

Mekonnen B, Garedew W (2019). Growth, yield, and quality responses of turmeric (Curcuma longa L.)to nitrogen fertilizer rate and timing of its application. Acta Agrobotanica 72(3):1781.
Crossref

Paulos D (1986). Response of turmeric (Curcuma domestica Val.) and ginger (Zingibere officinale Rosc.) to fertilizer treatments. In: Desta Beyene (ed.): Proceedings of the first Soil Science Research Review Workshop, pp. 60-61. Addis Ababa, Ethiopia.

Pruthi JS (1998). Major spices of India Crop management post-harvest technology (reprinted), Indian Council of Agricultural Research (ICAR), India.

Purseglove JW, Brown EG, Green CL, Robins SRJ (1981). Spices: Volumes 1 and 2. Longman Group Limited, London.

Ragham S (2007). Handbook of spices, seasonings and flavoring. Second Edition, CRC Press, Tailor & Franchis Group, Boca Raton London New York, pp. 33-150.

Tadesse E, Melaku A, Fantahun A (2015). Effects of weed management methods on the growth and yield of Ginger in Metu, Illubabor Ethiopia. Developing Country Studies 5(13):82-86.

Temtme S, Getachew E, Mekonnen B, Shimber T (2017). Influence of type of planting material, plant density and method of planting on the yield and quality of Turmeric (Curcuma longa L.) at Tepi, Southwestern Ethiopia. Advances in Crop Science and Technology 5:305.
Crossref

Tepi Agricultural Research Center (TARC) (2020). Research progress report for the period 2017-2019/20. Shiferaw T, Dereje T, Behailu M, Shamil A (eds.), EIAR/TARC, Tepi, pp. 1-307.

Tesfaye W (2017). Determination of optimum rates of nitrogen and phosphorus fertilization for white cumin (Trachyspermum ammisprague) in Takusa Woreda of North Gondar Zone. International Journal of Scientific and Research Publications 7(2):460-463.

Uhl SR (2000). Handbook of spices, seasonings and flavoring. Technomic Publishing Company, Inc. USA.

Wondyifraw T, Surawit W (2004). A micropropagation method for korarima (Aframomum corrorima (Braun) Jansen). Science Asia 30:1-7.