Yield and Economics of Maize (Zea mays) + Soybean (Glycin max L. Merrill) Intercropping System under Different Tillage Methods

B. Paudel^1, , T. B. Karki², S.C. Shah³ and N. K. Chaudhary³

¹Nepal Agricultural Research Council, Regional Agriculture Research Station, Lumle, Kaski, Nepal

²Nepal Agricultural Research Council, National Maize Research Program, Rampur, Chitwan, Nepal

³Tribhuwan University, Institute of Agriculture and Animal Science, Kathmandu, Nepal

Cite this paper:
B. Paudel, T. B. Karki, S.C. Shah and N. K. Chaudhary. Yield and Economics of Maize (Zea mays) + Soybean (Glycin max L. Merrill) Intercropping System under Different Tillage Methods. World Journal of Agricultural Research. 2015; 3(2):74-77. doi: 10.12691/wjar-3-2-7

Abstract

A study was conducted to determine the most profitable crop arrangements for maize and soybean intercropping system. The effect of tillage {conventional (CT) versus zero tillage (ZT)} and six crop arrangements (sole maize, sole soybean, maize+soybean intercropping at different row ratio arrangements) on grain yield and economics was investigated in Chitwan, Nepal during the summer of 2013. The grain yields of maize and soybean were not affected by tillage methods. However, crop arrangements significantly affect yield component and yield of both maize and soybean. Sole crop of maize and soybean recorded significantly higher grain yield than corresponding yields under intercropping systems. Planting maize+soybean at 1:1 ratio recorded highest maize grain yield (4.58 Mg ha^-1) and 2:2 ratio recorded the highest soybean yield (1.70 Mg ha^-1). Yield reduction due to intercropping ranged from 21.44% to 31.9% in maize and 22.3% to 53.88% in soybean as compared to their sole cropping. Remarkably higher net return was obtained in ZT (NPRs 110.4 thousands ha^-1) than CT (NPRs 105.8 thousands ha^-1). Intercropping of maize and soybean at 2:2 ratio recorded maximum benefit (NPRs 132.7 thousands ha^-1), maize grain yield equivalent (8.74 Mg ha^-1) and land equivalent ratio (1.47) than sole and intercropping treatments. It was found that paired rows of soybean between two rows of maize under ZT system could achieve higher productivity and profitability.

Keywords:
intercropping system tillage crop arrangements yield economics

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References:

[1]	MoAD., Stastistical information on Nepalese agriculture, Government of Nepal. Ministry of Agriculture and Development, Agribusiness Promotion and Stastistics Division, Singha Durbar, Kathmandu, Nepal. 2013.
[2]	Khurshid, K., Iqbal, M.,Arif, M.S. and Nawaz, A. “Effect of tillage and mulch on soil physical properties and growth of maize,” International Journal of Agriculture and Biology. 8(5). 593-596. 2006.
[3]	McGarry, D., Bridge, B.J. and Radford, B.J. “Contrasting soil physical properties after zero and traditional tillage of an alluvial soil in the semi-arid subtropics,” Soil and Tillage Research. 53(2). 105-115. 2000.
[4]	Sundermeier, A.P., Islam, K.R., Raut, Y., Reeder, R.C. and Dick, W.A. “Not-ill impacts of soil biophysical carbon sequestration,” Soil Science Society of America Journal. 75(5). 1779-1788. 2011.
[5]	Bennie, A.T.P., and Botha, F.J.P. “Effect of deep tillage and controlled traffic on root growth, water-use efficiency andyield of irrigated maize and wheat,” Soil and Tillage Research. 7(1-2). 85-95. 1986.
[6]	Varsa, E.C., Chong, S.K., Aboulaji, J.O., Farquhar, D.A. and Olsen, F.J. “Effect of deep tillage on soil physical characteristics and corn (Zea mays L.) root growth and production,” Soil and Tillage Research. 43(3-4). 219-228. 1997.
[7]	Torbert, H.A., Potter, K.N. and Morrison, J.E., “Tillage system, fertilizer nitrogen rate and timing effect on corn yield in the taxes black land prairie,” Agronomy Journal. 93. 1119-1124. 2001.
[8]	Ofori, F. and Stern, W.R., “Cereal-legume intercropping systems,”. Advances in Agronomy. 41. 41-89. 1987
[9]	Okigbo, B.N. and Greenland, D.J., “Intercropping systems in tropical Africa ,” In: Papendick et al. (Eds). Multiple Cropping. Proceeding of a symposium held at Agriculture University, Hissar, Indian society of Agronomy and Indian Council of Agriculture Research, October 1976 pp. 63-101. 1976.
[10]	Yunusa, I.A.M., “Effects of planting density and plant arrangement pattern on growth and yields of maize (Zea mays L.) and soybean (Glycine max L. Merr.) grown in mixtures,” Journal of Agricultural Science. (Camb.) 112. 1-8. 1989.
[11]	Giller, K.E. and Wilson, K.J., “Nitrogen Fixation in Tropical Cropping Systems,” CAB International, Wallingford, U. S. A. 1993.
[12]	Reddy, T. Y. and Reddi, G. H. Principles of agronomy. 2nd edition. Kalayani Publisher, New Delhi, India. 522 p. 2002.
[13]	Ennin, S.A., Clegg, M.O. and Francis, C.A., “Resource utilization in soybean/maize intercrops,” African Crop Science Journal. 10(73). 251-261. 2002.
[14]	Kumar, K.V., Reddy, M.D., Sivashankar, A. and Redddy, N.V., “Yield and economics of maize (Zea mays) and soybean (Glycine max) in intercropping under different row proportions” Indian Journal of Agricultural Science. 73(2). 69-71. 2003.
[15]	Meena, O.P., Gaur, B.L. and Singh, P., “Effect of row ratio and fertility levels on productivity, economics and nutrient uptake in maize (Zea mays) + soybean (Glycine max) intercropping system,” Indian Journal of Agronomy. 51(3). 178-182. 2006.
[16]	Ezumah, H.C., Nguyen Nam, K.Y. and Walker, P., “Maize-cowpea intercropping as affected by nitrogen fertilization,” Agronomy Journal. 79. 275-280. 1987.
[17]	Mudita, I.I., Chiduza, C., Rihchardson-Kageler, S. and Murungu, F.S., “Evaluation of different strategies of intercropping maize (Zea mays (L.) Merrill) under small-holder production in sub-humid Zimbabwe,” Journal of Agronomy. 7(3). 237-243. 2008.
[18]	Searle, P. G., Comudon, Y., Sheddon, D. and Nance, R. A., “Effect of maize and legume intercropping system and fertilizer nitrogen on crop yields and residual nitrogen,”. Field Crops Research, 4.133-45. 1981.
[19]	Siame, J., Willey, R.W. and More, S., “The response of maize/Phaseolus intercropping to applied nitrogen on Oxisols in northern Zambia,” Field Crops Research, 55. 73-81. 1998.
[20]	Quayyum, M.A., Akanda, M.E. and Karim, M.F., “Row spacing and number of rows of chickpea grown in association with maize (Zea mays L.),” Bangaladesh Journal of Agriculture. 12(4). 223-230. 1987.
[21]	Muoneke, C. O., Ogwuche, M. A. O. and kalu, B. A., “Effect of maize planting density on the performance of maize/soybean intercropping system in guinea savannah agroecosystem,”. African Jouuornal of Agricultural Research. 2 (12). 667-677. 2007.
[22]	Addo-Quaya, A.A., Darkwa A.A. and Ocloo G.K., “Yield and productivity of component crops in a maize-soybean intercropping system as affected by time of planting and spatial arrangement,” Journal of Agriculture and Biological Science. 6(9). 50-57. 2011.