African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12370

Full Length Research Paper

Effect of intercropping aerobic rice with leafy vegetables on crop growth, yield and its economic efficiency

Sylvestre Habimana
  • Sylvestre Habimana
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Saidi Rumanzi Mbaraka
  • Saidi Rumanzi Mbaraka
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Antoine Karangwa
  • Antoine Karangwa
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Francois Xavier Rucamumihigo
  • Francois Xavier Rucamumihigo
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Fabrice Rwalinda Musana
  • Fabrice Rwalinda Musana
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Eularie Mutamuliza
  • Eularie Mutamuliza
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Ivan Gasangwa
  • Ivan Gasangwa
  • Entomology Laboratory, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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Christian Nkurunziza
  • Christian Nkurunziza
  • Rwanda Agriculture Board, P. O. Box 5016, Kigali, Rwanda.
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Jean Claude Abayisenga
  • Jean Claude Abayisenga
  • School of Agriculture and Food Sciences, University of Rwanda, P. O. Box 210 Musanze, Rwanda.
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Athanase Rusanganwa Cyamweshi
  • Athanase Rusanganwa Cyamweshi
  • Rwanda Agriculture Board, P. O. Box 5016, Kigali, Rwanda.
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  •  Received: 14 May 2021
  •  Accepted: 09 July 2021
  •  Published: 31 July 2021

Abstract

Aerobic rice production system provides a sustainable alternative to the traditional rice cultivation. To evaluate the agronomic and economic effect of intercropping aerobic rice with four leafy vegetables, field experiments were conducted at University of Agriculture Science Bangalore research station, India during 2017 and 2018. The experiments consisted of 9 treatments with 4 replications and, a Randomized Completely Block Design was applied. The treatments were as follows: Intercropping (IC1): rice+amaranth; IC2: rice + coriander; IC3: rice + spinach, and IC4: rice + fenugreek plus other 5 treatments of solecrops (SC), SC5: rice, SC6: amaranth, SC7: coriander, SC8: spinach, and SC9: fenugreek. Results showed that intercropping produced significantly better plant growth and higher yields than sole crops. The rice-spinach intercrop produced highest rice grain yield (7,651 kg ha-1), vegetable yield (25,508 kg ha-1), land equivalent ratio (2.13), rice equivalent yield (16,153 kg ha-1), production efficiency (107.69 kg day-1), area time equivalent ratio (1.23) and system harvest index (0.77). Net return and benefit cost ratio of rice-spinach intercropping were also higher than that of sole crops. This suggests that intercropping of aerobic rice with leafy vegetables can be productive and economically efficient.

 

Key words: Aerobic rice, intercropping, leafy vegetables, productivity.