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NERICA Cultivation and its Yield Determinants: The Case of Upland Rice Farmers in Namulonge, Central Uganda

Author

Listed:
  • Kisho Miyamoto
  • Atsushi Maruyama
  • Yusuke Haneishi
  • Shunsuke Matsumoto
  • Tatsushi Tsuboi
  • Godfrey Asea
  • Stella Okello
  • Michiko Takagaki
  • Masao Kikuchi

Abstract

This paper examined actual farmers’ cultivation practices of NERICA (New Rice for Africa) and the determinants of its yield, based on data obtained from a field survey conducted in central Uganda. NERICA’s high yielding potential was realized in farmers’ fields. On average, farmers attained yield as high as 3 t ha-1. A high seeding rate, high fertilizer/chemical applications and high laborintensity characterized the upland NERICA cultivation in the study area. The estimation of yield function revealed that the response of rice yield to nitrogen was as high as 46 kg ha-1 of paddy per 1 kg ha-1 of nitrogen applied, and that the continuous planting reduced the yield significantly. The large difference in the unit yield between large and small farmers was explained by small farmers’ higher input intensities than large farmers’, and it is the high labor requirement of NERICA that makes it a pro-smallholder technology.

Suggested Citation

  • Kisho Miyamoto & Atsushi Maruyama & Yusuke Haneishi & Shunsuke Matsumoto & Tatsushi Tsuboi & Godfrey Asea & Stella Okello & Michiko Takagaki & Masao Kikuchi, 2012. "NERICA Cultivation and its Yield Determinants: The Case of Upland Rice Farmers in Namulonge, Central Uganda," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(6), pages 120-120, April.
    • Handle: RePEc:ibn:jasjnl:v:4:y:2012:i:6:p:120
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    References listed on IDEAS

    as
    1. Keijiro OTSUKA & Kaliappa P. KALIRAJAN, 2006. "Rice Green Revolution In Asia And Its Transferability To Africa: An Introduction," The Developing Economies, Institute of Developing Economies, vol. 44(2), pages 107-122, June.
    2. Yoko KIJIMA & Dick SSERUNKUUMA & Keijiro OTSUKA, 2006. "How Revolutionary Is The “Nerica Revolution”? Evidence From Uganda," The Developing Economies, Institute of Developing Economies, vol. 44(2), pages 252-267, June.
    3. Yoko Kijima & Keijiro Otsuka & Dick Sserunkuuma, 2008. "Assessing the impact of NERICA on income and poverty in central and western Uganda," Agricultural Economics, International Association of Agricultural Economists, vol. 38(3), pages 327-337, May.
    4. Kijima, Yoko & Otsuka, Keijiro & Sserunkuuma, Dick, 2011. "An Inquiry into Constraints on a Green Revolution in Sub-Saharan Africa: The Case of NERICA Rice in Uganda," World Development, Elsevier, vol. 39(1), pages 77-86, January.
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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