Soybean-maize intercropping on yield and system productivity in Makurdi, Central Nigeria

Adetiloye, P.O., Ezedinma, F.O.C., Okigbo, B.N., 1983. A land equivalent coefficient concept for the evaluation of competitive and productive interactions on simple complex mixtures. Ecol. Modelling. 19, 27-39.

Atungu, J.J., Afolabi, S.O., 2001. Field assessment of resistance of some (Glycine max (L) Merril) lines and varieties to Meloidogyne spp, using combination of gall index and grain yield. Trop. Oil Seeds J. 6, 41-49.

Dugje, I.Y., Omoigui, L.O., Ekelem, F., Bandyopadhyay, R., Kumar, P.L., Kamara, A.Y., 2009 Farmers guide to soybean production in Northern Nigeria, pp. 16.

Enwezor, W.O.E., Udo, J., Ajotade, K.A., 1989. Fertilizer procurement and distribution. Fertilizer use and management practice for crops in Nigeria. Savenda Publishers, Nsukka, Nigeria. Pp. 25-28.

Groote, H.M., 2002. Identifying farmers preference for new maize varieties in Eastern Africa. 1st edition, CIMMYT Publishers, Nairobi, Pp. 102.

Hugar, H.Y., Palled, Y.B., 2008. Studies on maize-vegetable intercropping systems. Karnataka J. Agric. Sci. 21, 162-164.

Ijoyah, M.O., Dzer, D.M., 2012. Yield performance of okra (Abelmoschus esculentus L. Moench) and Maize (Zea mays L.) as affected by time of planting maize in Makurdi, Nigeria. International Scholarly Research Network (ISRN Agronomy), Volume 2012, Article ID 485810, 7 pages, doi: 10.5402/2012/485810.

Ijoyah, M.O., Fanen, F.T., 2012. Effects of different cropping pattern on performance of maize-soybean mixture in Makurdi, Nigeria. Scient. J. Crop Sci. 1(2), 39-47.

Ijoyah, M.O., Jimba, J., 2012. Evaluation of yield and yield components of maize (Zea mays L.) and okra (Abelmoschus esculentus L. Moench) intercropping system at Makurdi, Nigeria. J. Biodiv. and Environ. Sci. 2(2), 38-44.

Ijoyah, M.O., Atanu, S.O., Ojo, S., 2010. Productivity of okra (Abelmoschus esculentus L. Moench) at varying sowing dates in Makurdi, Nigeria. J. Appl. Biosci. 32, 2015-2019.

Iken, J.E., Amusa, N.A., 2004. Maize research and production in Nigeria. African J. Biotech. 3, 302-307.

Kling, J.G., Edmeades, G., 1997. Morphology and growth of maize. Research guide No 9 Training Programme. International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, pp. 3-6.

Muneer, A.P., Fida, H.M., Mumtaz, A.K., Muhammad, I.S., 2004. Performance of maize in intercropping system with soybean under different patterns and nitrogen levels. J. Appl. Sci. 4(2), 201-205.

Olufajo, O.O., 1992. Response of soybean to intercropping with maize in a sub-humid tropical environment. Trop. Oil Seeds J. 1, 27-33.

Root, W.R., Oyekan, P.O., Dashiell, K.E., 1987. West and Central Africa, Nigeria sets example for expansion of soybean. In soybeans for the Tropics Research Production and Utilization. P. 230.

Silwana, T.T., Lucas, E.O., 2002. The effect of planting combinations and weeding and yield of component crops of maize-bean and maize-pumpkin intercrops. J. Agric. Sci. 138, 193-200.

Steel, R.G.D., Torrie, J.H., 1980. Principles and procedures of statistics. A Biometrical Approach. 2nd edition, McGraw Hill, New York, 633pp.

Uzozie, P.R., 2001. Effect of time of interplanting maize on the performance of cassava-maize intercrop. J. Agric. Sci. 12, 18-21.

Willey, R.W., 1985. Evaluation and presentation of intercropping advantages. Expl. Agric. 21, 119-133.

Willey, R.W., Rao, M.R., 1980. A competitive ratio for quantifying competition between intercrops. Expl. Agric. 16, 117-125.