Potential of feed-food double-cropping in central highlands of Ethiopia

References

• Al-Suhaibani NA. 2010. Estimation yield and quality of Alfalfa and Clover for mixture cropping pattern at different seeding rates. American-Eurasian J Agric Environ Sci. 8:189–196.
   Google Scholar
• Assefa G. 2012. Retrospects and prospects of forage and pasture crops research in Ethiopia. In: Assefa G, Dejene M, Hanson J, Anemut G, Mengistu S, Mengistu A, editors. Forage seed research and development in Ethiopia. Addis Ababa: Ethiopian Institute of Agricultural Research.
   Google Scholar
• Assefa G, Feyissa F, Gebeyehu A, Minta M. 2004. Characterization of selected oats varieties for their important production traits in the highlands of Ethiopia. In: Yimegnuhal A, Degefa T, editors. Farm animal biodiversity in Ethiopia: status and prospects. Proceedings of the 11th Annual conference of the Ethiopian Society of Animal Production (ESAP) held in Addis Ababa; 2003 Aug 28–30. Addis Ababa: ESAP; 441 p.
   Google Scholar
• Assefa G, Feyissa F, Gebeyehu A, Minta M, Tekletsadik T. 2011. Forage crop productivity and integration with barley in Ethiopia. In: Mulatu B, Grando S, editors. Barley research and development in Ethiopia. Proceedings of the 2nd national barley research and development review workshop; 2006 Nov 20–30. Holetta: HARC.
   Google Scholar
• Bouyoucos GJ. 1962. Hydrometer method improved for making particle size analysis of soils. Agron J. 53:464–465.
   Google Scholar
• Campbell CG. 1997. Grass pea. Lathyrus sativus L. Promoting the conservation and use of underutilized and neglected crops. 18. Gatersleben: Institute of Plant Genetics and Crop Plant Research and Rome: International Plant Genetic Resources Institute; 92 p.
   Google Scholar
• Chopra SH, Kanwar JS. 1976. Analytical agricultural chemistry. New Delhi: Kalyani Publisher Ludhiana; 518 p.
   Google Scholar
• Collar C, Aksland G. 2001. Harvest stage effects on yield and quality of winter forage. In: Proceedings, 31st California Alfalfa and Forage Symposium, 2001 Dec 12–13, Modesto, CA. Davis (CA): Cooperative Extension University of California.
   Google Scholar
• Denekew Y, Tsega W. 2009. Evaluation of b-ODAP content in forage, grain and straw of Lathyrus sativus in northwest Ethiopia [Internet]. Livest Res Rural Dev. 21. [cited 2014 Jan 14]. Available from: http://www.lrrd.org/lrrd21/12/dene21212.htm
   Google Scholar
• Eshete G. 2002. An assessment of feed resources, their management and impact on livestock productivity in Ginchi watershed area [MSc Thesis]. Dire Dawa: Alemaya University.
   Google Scholar
• FAO 1990. Soil units of the soil Map of the World. Rome: FAO-UNESCO-ISRIC.
   Google Scholar
• Feyissa F. 2009. Variation in maturity among oats varieties and its implications for integration into the highland farming systems [Internet]. Livest Res Rural Dev. 21. [cited 2014 Jan 14]. Available from: http://www.lrrd.org/lrrd21/10/feyi21173.htm
   Google Scholar
• Frances O, Stern WR. 1987. Cereal-legume intercropping systems. In: Brady NC, editor. Agronomy for sustainable development. American Society of Agronomy. Adv Agron. Vol. 41. San Diego (CA): Academic Press. p. 41–90.
   Web of Science ®Google Scholar
• Gupta PK. 2000. Soil, plant, water and fertilizer analysis. New Dehli: Agrobios; 438 p.
   Google Scholar
• Jackson ML. 1958. Soil chemical analysis. Englewood Cliffs (NJ): Prentice Hall.
   Google Scholar
• Kassie M, Shiferaw B, Asfaw S, Abate T, Muricho G, Ferede S, Eshete M, Assefa K. 2009. Current situation and future outlooks of the chickpea sub-sector in Ethiopia. Nairobi: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) and Addis Ababa: Ethiopian Institute of Agricultural Research (EIAR).
   Google Scholar
• Kelbessa U, Fufa H, Biratu E, Husain A. 2005. Evaluation of Lathyrus sativus cultivated in Ethiopia for proximate composition, minerals, α-ODAP and anti-nutritional components. Afr J Food Agric Nut Dev. 5: 1–15.
   Google Scholar
• Keneni G, Bekele E, Assefa F, Lmtiaz M, Debele T, Dagne K, Getu E. 2012. Evaluation of Ethiopian chickpea (Cicer arietinum L.) germplasm accessions for symbio-agronomic performance. Renewable agriculture and food systems. Cambridge: Cambridge University Press.
   Google Scholar
• Klute A, Dirksen C. 1986. Hydraulic conductivity and diffusivity: laboratory methods, In: Klute A, editor. Methods of soil analysis – Part 1: physical and mineralogical methods. Madison (WI): American Society of Agronomy and Soil Science Society of America; p. 687–734.
   Google Scholar
• Lal R. 2008. Soils and sustainable agriculture: a review. Agron Sustain Dev. 28: 57–64.
   Web of Science ®Google Scholar
• Landon JR. 1991. Booker tropical soil manual: a handbook for soil survey and agricultural land evaluation in the tropics and subtropics. Harlow: Longman Scientific & Technical.
   Google Scholar
• LeNahleu PJ, Brinkman MA. 2004. Soybeans double-cropped after small grain silage. Madison (WI): Cooperative Extension of the University of Wisconsin.
   Google Scholar
• Lithourgidis AS, Dordas CA, Damalas CA, Vlachostergios DN. 2011. Annual intercrops: an alternative pathway for sustainable agriculture. Aust J Crops Sci. 5:396–410.
   Web of Science ®Google Scholar
• Mekoya A. 2008. Multipurpose fodder trees in Ethiopia: farmers’ perception, constraints to adoption and effects of long-term supplementation on sheep performance [PhD Thesis]. Wageningen: Wageningen University.
   Google Scholar
• Mengistu A. 2003. Country pasture/forage resource profiles: Ethiopia [Internet]. Rome: FAO. [cited 2014 Jan 20]. Available from: http://www.fao.org/ag/agp/agpc/doc/counprof/ethiopia/ethiopia.htm
   Google Scholar
• Mengistu S. 2008. Forage development for sheep and goats. In: Yami A, Merkel RC, editors. Sheep and goat production handbook for Ethiopia. Ethiopian sheep and goat improvement program [Internet]. Working paper no. 23. [cited 2014 Jan 20]. Available from: www.ipms-ethiopia.org
   Google Scholar
• Minta M. 2006. Effect of Rhizobium Inoculation on nodulation, nitrogen fixation and yield of some annual forage legumes (Vicia spp.) on Nitisols and Vertisols of central highlands of Ethiopia [MSc Thesis]. Dire Dawa: Haramaya University.
   Google Scholar
• Mulatu B, Lakew B. 2011. Barley research and development in Ethiopia – an overview. In: Mulatu B, Grando S, editors. Barley research and development in Ethiopia. Proceedings of the 2nd National Barley Research and Development Review Workshop; 2006 Nov28–30. Holetta: HARC.
   Google Scholar
• Okalebo JR, Gathua KW, Woomer PL. 2002. Laboratory methods of soil and plant analysis: a working manual. 2nd ed. Nairobi: Sacred African Publishers.
   Google Scholar
• Olsen SR, Cole V, Watenabe FS, Dean LA. 1954. Estimate of available phosphorus in soil by extraction with sodium bicarbonate. USDA Cir. No. 939. Washington (DC): US Department of Agriculture.
   Google Scholar
• Shata SM, Safaa AM, Siam HS. 2007. Improving calcareous soil productivity by integrated effect of intercropping and fertilizer. Res J Agric Biol Sci. 3:733–739.
   Google Scholar
• Tanner DG, Gorfu A, Zewde K. 1991. Wheat agronomy research. In: Gebre-Mariam H, Tanner DG, Hulluka M, editors. Wheat research in Ethiopia: a historical perspective. Addis Ababa: IAR/CIMMYT.
   Google Scholar
• Tesfaye LT, Puskur R, Hoekstra D, Tegegne A. 2008. Exploring innovation capacity in Ethiopian dairy systems, IFPRI; 2008 Apr 7–9; Addis Ababa.
   Google Scholar
• Tsegaye D, Tadesse W, Bayable M. 2005. Performance of grass pea (Lathyrus sativus L.) somaclones at Adet, northwest Ethiopia. Lathyrus Lathyrism Newsletter 4 [Internet]. [cited 2014 Jan 20]. Available from: http://www.clima.uwa.edu.au/publications/lathyrus/vol4
   Google Scholar
• Walkely A., Black IA. 1934. An examination of the Degtijareff method for determining soil organic matter and proposed modification of the titration method. Soil Sci. 37: 29–34.
   Google Scholar
• Wondatir Z. 2010. Livestock production systems in relation with feed availability in the highlands and central rift-valley of Ethiopia [MSc. Thesis]. Dire Dawa: Haramaya University.
   Google Scholar
• Yirga C, Hassan RM. 2001. Crop-livestock farming system in the highlands of Ethiopia: smallholder farmers' management practices and constraints. In: Wall PC, editor. Wheat and weeds: food and feed. Proceeding of two stockholder workshops. Mexico City: CIMMYT; p. 145–165.
   Google Scholar