[1]
|
Mitchell, C.E., Tilman, D. and Groth, J.V. (2002) Effects of Grassland Plant Species Diversity, Abundance, and Composition on Foliar Fungal Disease. Ecology, 83, 1713-1726. http://dx.doi.org/10.1890/0012-9658(2002)083[1713:EOGPSD]2.0.CO;2
|
[2]
|
Hauggaard-Nielsen, H., Ambus, P. and Jensen, E.S. (2001) Interspecific Competition, N Use and Interference with Weeds in Pea-Barley Intercropping. Field Crop Research, 70, 101-109. http://dx.doi.org/10.1016/S0378-4290(01)00126-5
|
[3]
|
Nigusei, T. (1994) Performance of Maize/Bean Intercropping Systems under Low and Medium Rainfall Situations, Unpublished M.Sc. Thesis, Alemaya University of Agriculture, Ethiopia.
|
[4]
|
Amare, B. (1987) Maize-Soybeans Intercropping. 19th National Crop Improvement Conference, Adis Ababa, 22-26 April 1987.
|
[5]
|
Jansen, P.C.M. (2006) Lupines albus L. In: Brink, M. and Belay, G., Eds., PROTA (Plant Resources of Tropical Africa) Wageningen. http://www3.interscience.wiley.com/journal/
|
[6]
|
Central Statistical Agency (2012) Agricultural Sample Survey. 2011/2012 Volume I Report on Area and Production of Major Crops. Statistical Bulletin. May 2012, Addis Ababa.
|
[7]
|
Aleligne, K. and Steven, F. (1987) Initial Results of Informal Survey Adet Farming System, Gojam Region, and Working Paper No.2187, IAR and Bair Dar, Ethiopia.
|
[8]
|
Willey, R.W. and Osiru, D.S.O. (1972) Studies on Mixtures of Maize and Beans (Phaseolus vulgaris) with Particular Reference to Plant Population. Journal of Agricultural Science, 79, 517-529. http://dx.doi.org/10.1017/S0021859600025909
|
[9]
|
Willey, R.W. and Rao, M.R. (1980) A Competitive Ratio for Quantifying Competition between Intercrops. Experimental Agriculture, 16, 117-125. http://dx.doi.org/10.1017/S0014479700010802
|
[10]
|
Willey, R.W. (1979b) Intercropping—Its Importance and Research Needs. Part II. Agronomy and Research Approaches. Field Crop Abstract, 32, 73-85.
|
[11]
|
AARC (Adet Agricultural Research Center) (2002) Summary of Research Achievements (1987-2001), Adet, Amhara, Ethiopia.
|
[12]
|
Mead, R. and Willey, R.W. (1980) The Concept of Land Equivalent Ratio and Advantages in Yields from Intercropping. Experimental Agriculture, 16, 217-228. http://dx.doi.org/10.1017/S0014479700010978
|
[13]
|
Ofori, F. and Stern, W.R. (1987) Cereal and Legume Intercropping Systems. Advanced Agronomy, 41, 41-90. http://dx.doi.org/10.1016/S0065-2113(08)60802-0
|
[14]
|
Hiebsch, C.K. (1980) Principles of Intercropping. Effect of N Fertilization and Crop Duration on Equivalency Ratios in Intercrops versus Monoculture Comparisons. PhD thesis, North Carolina State University, Raleigh.
|
[15]
|
Willey, R.W. (1979) Intercropping, Its Importance and Research Needs. Part 1. Competition and Yield Advantages. Agronomy and Research Approaches. Field Crop Abstract, 32, 1-10.
|
[16]
|
YWARDO (Yilmana Denesa Wereda Agricultural and Rural Development Office) (2009) Annual Plan of Office of Agriculture and Natural Resources Development Adet, Amhara. (Unpublished)
|
[17]
|
Ghosh, P.K. (2004) Growth, Yield, Competition and Economics of Groundnut/Cereal Fodder Intercropping Systems in the Semi-Arid Tropics of India. Field Crops Research, 88, 227-237. http://dx.doi.org/10.1016/j.fcr.2004.01.015
|
[18]
|
SAS Institute Inc. (2002) JMP-5 Statistical Software, Version 5. Cary, USA.
|
[19]
|
Beets, W.C. (1982) Multiple Cropping and Tropical Farming Systems. Gower, London, Britain, and West Views Press, Colorado.
|
[20]
|
Caballero, R., Goicoechea, E.L. and Hernaiz, P.J. (1995) Forage Yields and Quality of Common Vetch and Oat Sown at Varying Seeding Ratios and Seeding Rates of Common Vetch. Field Crop Research, 41, 135-140. http://dx.doi.org/10.1016/0378-4290(94)00114-R
|
[21]
|
Yadav, R.S. and Yadav, O.P. (2001) The Performance of Cultivars of Pearl Millet and Cluster Bean under Sole Cropping and Intercropping Systems in Arid Zone Conditions in India. Experimental Agriculture, 37, 231-240. http://dx.doi.org/10.1017/S0014479701002046
|
[22]
|
Aasim, M., Muhammad, E.U. and Karim, A. (2008) Yield and Competition Indices of Intercropping Cotton (Gossypium hirsutum L.) Using Different Planting Patterns. Ankara.
|
[23]
|
Reddy, K.C., Visser, P.L., Klaij, M.C. and Renard, C. (1994) The Effects of Sole and Traditional Intercropping of Millet and Cowpea on Soil and Crop Productivity. Experimental Agriculture, 30, 83-88. http://dx.doi.org/10.1017/S0014479700023875
|
[24]
|
Chen, C., Westcott, M., Neill, K., Wichman, D. and Knox, M. (2004) Row Configuration and Nitrogen Application for Barley-Pea Intercropping in Montana. Journal of Agronomy, 96, 1730-1738. http://dx.doi.org/10.2134/agronj2004.1730
|
[25]
|
Trydemanknudsen, M., Hauggaard-Nielsen, H., Jornsgard, B. and Steenjensen, E. (2004) Comparison of Inter-Specific Competition and N Use in Pea-Barley, Faba Bean-Barley, and Lupine-Barley Intercrops Grown at Two Temperate Locations. Journal of Agricultural Science, 142, 617-627. http://dx.doi.org/10.1017/S0021859604004745
|
[26]
|
Banik, P., Samsal, T., Ghosal, P.K. and Bagchi, D.K. (2000) Evaluation of Mustard and Legume Intercropping under 1:1 and 1:2 Row Replacement Series System. Journal of Agronomy and Crop Science, 185, 9-14. http://dx.doi.org/10.1046/j.1439-037X.2000.00388.x
|
[27]
|
Tamado, T. and Eshetu, M. (2000) Evolution of Sorghum, Maize and Common Bean Cropping Systems in East Harerghe, Eastern Ethiopia. Journal of Agricultural Science, 17, 33-45.
|
[28]
|
Bhadoria, R.B., Chauhan, G.S., Kushwaha, H.S. and Singh, V.N. (1992) Intercropping of Cluster Bean and Pearl Millet. Indian Journal Agronomy, 17, 416-439.
|
[29]
|
Dutta, H.S., Baroova, S.R. and Rajkhowa, D.J. (1994) Feasibility and Economic Profitability of wheat (Triticum aestivum)-Based Intercropping System under Rain Fed Conditions. Indian Journal of Agronomy, 39, 448-450.
|
[30]
|
Dhima, K.V., Lithourgidis, A.S. and Dordas, C.A. (2006) Competition Indices of Common Vetch and Cereal Intercrops in Two Seeding Ratio. Field Crops Research, 100, 249-256. http://dx.doi.org/10.1016/j.fcr.2006.07.008
|
[31]
|
Trydeman, K.M., Hauggaard-Nielsen, H., Jornsgard, B. and Steen, J.E. (2004) Comparison of Interspecific Competition and N Use in Pea-Barley, Faba Bean-Barley and Lupine-Barley Intercrops Grown at Two Temperate Locations. Journal of Agricultural Science, 142, 617-627. http://dx.doi.org/10.1017/s0021859604004745
|
[32]
|
Zhang, F. and Li, L. (2003) Using Competitive and Facilitative Interactions in Intercropping Systems Enhances Crop Productivity and Nutrient-Use Efficiency. Plant and Soil, 248, 305-312. http://dx.doi.org/10.1023/A:1022352229863
|
[33]
|
Berntsen, J., Hauggaard-Nielsen, H., Olesen, J.E., Petersen, B.M., Jensen, E.S. and Thomsen, A. (2004) Modeling Dry Matter Production and Resource Use in Intercrops of Pea and Barley. Field Crops Research, 88, 69-83. http://dx.doi.org/10.1016/j.fcr.2003.11.012
|
[34]
|
Jensen, E.S. (1996) Grain Yield, Symbiotic N-2 Fixation and Interspecific Competition for Inorganic N in Pea-Barley Intercrops. Plant Soil, 182, 25-38. http://dx.doi.org/10.1007/bf00010992
|
[35]
|
Hauggaard-Nielsen, H., Mette Klindt, A., Bjarne, J. and Erik Steen, J. (2005) Density and Relative Frequency Effects on Competitive Interactions and Resource Use in Pea-Barley Intercrops. Field Crop Research, 95, 256-267. http://orgprints.org/4053/
|
[36]
|
Grace, J. (1990) On the Relationship between Plant Traits and Competitive Ability. In: Grace, J.B. and Tilman, D., Eds., Perspective on Plant Competition, Academic Press, San Diego, 51-65.
|