Effect of rice/cassava rotation on agronomic parameters of rice and cassava grown on Ferralsol in western Côte d'Ivoire
1 Teaching and research unit natural resources and environment, soil science and sustainable agriculture faculty, Agriculture, Fishery Resources and Agro-Industry training and research unit, San Pedro University, BP 1800 San Pedro Côte d’Ivoire.
2 Laboratory of soil, water and geomaterials sciences, soil science and sustainable agriculture faculty, earth sciences and mining resources training and research unit, Felix Houphouet Boigny University, 22 BP 582 Abidjan 22, Côte d’Ivoire.
3 Rubber program, former regional director of the national agronomic research center in Abidjan, 01 BP 1740 Abidjan 01 Côte d’Ivoire.
Research Article
GSC Advanced Research and Reviews, 2022, 13(03), 162-171.
Article DOI: 10.30574/gscarr.2022.13.3.0357
Publication history:
Received on 01 November 2022; revised on 15 December 2022; accepted on 17 December 2022
Abstract:
The rice/cassava rotation is one of the dominant rice-based cropping systems in western Côte d'Ivoire due to the inaccessibility of chemical fertilisers. The low productivity of this cropping system makes it necessary to think about improving agronomic performance. The objective of this study is to determine the effect of the rice/cassava rotation on the agronomic parameters of these crops. To achieve this objective, an agronomic trial was set up at the CNRA Research Station in Man on a Ferralsol. Five cropping sequences were compared in a Fischer block design with 5 treatments and 4 replications: 2 intensive monocultures of rice (0.20 m × 0.20 m) and cassava (1 m × 1 m) and 3 alternations of rice and cassava (R/M/R, M/R/M and R/R/M (farmer control)). The parameters measured were height, tillering, and yield of rice and cassava, as well as soil chemical parameters. The results showed that rice in rotation with cassava had a significant effect on cassava production, while cassava had no significant effect on rice grain yield. The rice-cassava rotation harmed soil chemical parameters. Except for the improvement of nitrogen and phosphorus contents due to biochemical reactions in the rhizosphere and the mobility of nutrients along the fertility gradient. Finally, R/M/R was found to be the best cropping sequence in a rice-based cropping system.
Keywords:
Rotation; Previous crop; Performance; Ferralsol; Man; Côte d’Ivoire
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