Abstract
Three cassava cultivars of contrasting canopy size were grown as a sole crop and in intercropping with pigeonpea under two N supply levels to examine whether the effect of N fertilizer was different in sole crop cassava and in intercropping, and whether it depended on the canopy type of cassava cultivar. Application of N promoted plant height and canopy width of cassava in both cropping systems, and this resulted in increased competitiveness of cassava in intercropping. However, when the most vigorous cassava cultivar was used in intercropping, N supply caused excessive top growth with no increase in tuber yield. The yield of pigeonpea on the other hand was always reduced with N supply in intercropping with any cassava cultivar.
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References
Bandyopadhyay SK and De R (1986) N relationship in a legume nonlegume association grown in an intercropping system. Fert Res 10: 73–82
Cenpukdee U and Fukai S (1991a) Cassava/legume intercropping with contrasting cassava cultivars. 1. Competition between component crops under three intercropping conditions. Field Crops Res (in press)
Cenpukdee U and Fukai S (1991b) Cassava/legume intercropping with contrasting cassava cultivars. 2. Selection criteria for cassava genotypes in intercropping with two contrasting legume crops. Field Crops Res (in press)
Cenpukdee U and Fukai S (1991c) Agronomic modification of competition between cassava and pigeonpea in intercropping. Field Crops Res (in press)
Fox RH, Talleyrand RH and Scott TW (1975) Effect of nitrogen fertilizer on yields and nitrogen content of cassava, Llanera cultivar. J Agric Univ PR 59: 115–124
Howeler RH (1980) Soil-related cultural practices for cassava. In: Cassava Cultural Practices: Proceedings of an International Workshop held in Salvador, Bahia, Brazil, 18–21 March 1980. Weber EJ, Toro MJC and Graham M (eds) pp 59–69. IDRC: Ottawa, Canada
Keating BA, Evenson JP and Fukai S (1982) Environmental effects on growth and development of cassava (Manihot esculenta Crantz) I. Crop development. Field Crops Res 5: 271–281
Leihner D (1983) Management and Evaluation of Intercropping Systems with Cassava. CIAT, Cali, Colombia
Ofori F and Stern WR (1986) Maize/cowpea intercrop system: effect of nitrogen fertilizer on productivity and efficiency. Field Crops Res 14: 247–261
Tsay JS, Fukai S and Wilson GL (1988a) Intercropping cassava with soybean cultivars of varying maturities. Field Crops Res 19: 211–225
Tsay JS, Fukai S and Wilson GL (1988b) Effects of relative sowing time of soybean on growth and yield of cassava in cassava/soybean intercropping. Field Crops Res 19: 227–239
Tsay JS, Fukai S and Wilson GL (1989) Growth and yield of cassava influenced by intercropped soybean and by nitrogen application. Field Crops Res 21: 83–94
Wahua TAT and Miller DA (1978a) Relative yield totals and yield components of intercropped sorghum and soybean. Agron J 70: 287–291
Wahua TAT and Miller DA (1978b) Effects of intercropping on soybean N2-fixation and plant competition on associated sorghum and soybeans. Agron J 70: 292–295
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Cenpukdee, U., Fukai, S. Effects of nitrogen supply on cassava/pigeonpea intercropping with three contrasting cassava cultivars. Fertilizer Research 29, 275–280 (1991). https://doi.org/10.1007/BF01052396
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DOI: https://doi.org/10.1007/BF01052396