,
Kone Brahima Brahima,
Otron Houa Daniel,
Dick Acka Emmanuel
Rice, one of the world’s main cereal crops, is not only a source of grain, but also of straw. However, global rice production remains insufficient, particularly in West Africa, where extensive farming is hampered by demographic and economic pressures. Intensification systems, including the cultivation of rice ratoon from improved varieties, appear to offer a promising solution. This study, conducted in Ivory Coast, aimed to assess the effects of the mineral fertilization on the growth and biomass production of NERICA L14 rice ratoons across two successive cycles. Fertilizer rates of 100 kg.ha-1 nitrogen 55 kg.ha-1 phosphorus, 150 kg.ha-1 potassium, 33 kg·ha-1 calcium, 15 kg.ha-1 magnesium, and 10 kg.ha-1 zinc were applied, along with an unfertilized control plot (0 kg.ha-1). The experiment was conducted in a randomised complete block design with four replications. Before ratooning, all elementary plots had received a basal application of 200 kg.ha-1 NPK (10-18-18) and 35 kg.ha-1 urea (46% N) at tillering and heading stages of the main crop. Observations and measurements were conducted on plant height, tiller density, and straw yield. Successive ratoon cycle exerted a depressive effect on both growth (reductions of up to 31.37% for plant height, and 42.41% for tillering), and straw yield (reduction of up to 65.87%) from one cycle to the next. Applications of nitrogen (73.15 and 65.05 cm for first and second cycles; 611 tillers.m-2 and 2,898.44 kg.ha-1 in total), zinc (70.6 and 61.88 cm; 565 tillers.m-2 and 2,296.88 kg.ha-1) and potassium (71.6 and 59.08 cm; 584 tillers.m-2 and 2,187.50 kg.ha-1) significantly increased these parameters, whereas calcium (66.28 and 50.9 cm; 465 tillers.m-2 and 1,914.06 kg.ha-1) exhibited a neutral to depressive effect across all ratoon cycles. Consequently, nitrogen, zinc, and potassium can be recommended as part of a rational fertilization strategy in ratoon culture, aiming to enhance vegetative growth and straw production of rice in Ivory Coast.
| Published in | American Journal of BioScience (Volume 13, Issue 6) |
| DOI | 10.11648/j.ajbio.20251306.12 |
| Page(s) | 197-209 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Rice Ratooning, Mineral Fertilization, Rice Growth, Straw Yield, Ivory Coast
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APA Style
Konan, K. O., Gilchrist, K. E. Y., Brahima, K. B., Daniel, O. H., Emmanuel, D. A. (2025). Improvement of Growth and Biomass of Rice (Oryza sp., Nerica L14 Variety) by Mineral Fertilization over Two Successive Ratoon Cycles. American Journal of BioScience, 13(6), 197-209. https://doi.org/10.11648/j.ajbio.20251306.12
ACS Style
Konan, K. O.; Gilchrist, K. E. Y.; Brahima, K. B.; Daniel, O. H.; Emmanuel, D. A. Improvement of Growth and Biomass of Rice (Oryza sp., Nerica L14 Variety) by Mineral Fertilization over Two Successive Ratoon Cycles. Am. J. BioScience 2025, 13(6), 197-209. doi: 10.11648/j.ajbio.20251306.12
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Download@article{10.11648/j.ajbio.20251306.12,
author = {Kouakou Olivier Konan and Kouadio Edouard Yves Gilchrist and Kone Brahima Brahima and Otron Houa Daniel and Dick Acka Emmanuel},
title = {Improvement of Growth and Biomass of Rice (Oryza sp., Nerica L14 Variety) by Mineral Fertilization over Two Successive Ratoon Cycles
},
journal = {American Journal of BioScience},
volume = {13},
number = {6},
pages = {197-209},
doi = {10.11648/j.ajbio.20251306.12},
url = {https://doi.org/10.11648/j.ajbio.20251306.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbio.20251306.12},
abstract = {Rice, one of the world’s main cereal crops, is not only a source of grain, but also of straw. However, global rice production remains insufficient, particularly in West Africa, where extensive farming is hampered by demographic and economic pressures. Intensification systems, including the cultivation of rice ratoon from improved varieties, appear to offer a promising solution. This study, conducted in Ivory Coast, aimed to assess the effects of the mineral fertilization on the growth and biomass production of NERICA L14 rice ratoons across two successive cycles. Fertilizer rates of 100 kg.ha-1 nitrogen 55 kg.ha-1 phosphorus, 150 kg.ha-1 potassium, 33 kg·ha-1 calcium, 15 kg.ha-1 magnesium, and 10 kg.ha-1 zinc were applied, along with an unfertilized control plot (0 kg.ha-1). The experiment was conducted in a randomised complete block design with four replications. Before ratooning, all elementary plots had received a basal application of 200 kg.ha-1 NPK (10-18-18) and 35 kg.ha-1 urea (46% N) at tillering and heading stages of the main crop. Observations and measurements were conducted on plant height, tiller density, and straw yield. Successive ratoon cycle exerted a depressive effect on both growth (reductions of up to 31.37% for plant height, and 42.41% for tillering), and straw yield (reduction of up to 65.87%) from one cycle to the next. Applications of nitrogen (73.15 and 65.05 cm for first and second cycles; 611 tillers.m-2 and 2,898.44 kg.ha-1 in total), zinc (70.6 and 61.88 cm; 565 tillers.m-2 and 2,296.88 kg.ha-1) and potassium (71.6 and 59.08 cm; 584 tillers.m-2 and 2,187.50 kg.ha-1) significantly increased these parameters, whereas calcium (66.28 and 50.9 cm; 465 tillers.m-2 and 1,914.06 kg.ha-1) exhibited a neutral to depressive effect across all ratoon cycles. Consequently, nitrogen, zinc, and potassium can be recommended as part of a rational fertilization strategy in ratoon culture, aiming to enhance vegetative growth and straw production of rice in Ivory Coast.
},
year = {2025}
}
TY - JOUR T1 - Improvement of Growth and Biomass of Rice (Oryza sp., Nerica L14 Variety) by Mineral Fertilization over Two Successive Ratoon Cycles AU - Kouakou Olivier Konan AU - Kouadio Edouard Yves Gilchrist AU - Kone Brahima Brahima AU - Otron Houa Daniel AU - Dick Acka Emmanuel Y1 - 2025/11/26 PY - 2025 N1 - https://doi.org/10.11648/j.ajbio.20251306.12 DO - 10.11648/j.ajbio.20251306.12 T2 - American Journal of BioScience JF - American Journal of BioScience JO - American Journal of BioScience SP - 197 EP - 209 PB - Science Publishing Group SN - 2330-0167 UR - https://doi.org/10.11648/j.ajbio.20251306.12 AB - Rice, one of the world’s main cereal crops, is not only a source of grain, but also of straw. However, global rice production remains insufficient, particularly in West Africa, where extensive farming is hampered by demographic and economic pressures. Intensification systems, including the cultivation of rice ratoon from improved varieties, appear to offer a promising solution. This study, conducted in Ivory Coast, aimed to assess the effects of the mineral fertilization on the growth and biomass production of NERICA L14 rice ratoons across two successive cycles. Fertilizer rates of 100 kg.ha-1 nitrogen 55 kg.ha-1 phosphorus, 150 kg.ha-1 potassium, 33 kg·ha-1 calcium, 15 kg.ha-1 magnesium, and 10 kg.ha-1 zinc were applied, along with an unfertilized control plot (0 kg.ha-1). The experiment was conducted in a randomised complete block design with four replications. Before ratooning, all elementary plots had received a basal application of 200 kg.ha-1 NPK (10-18-18) and 35 kg.ha-1 urea (46% N) at tillering and heading stages of the main crop. Observations and measurements were conducted on plant height, tiller density, and straw yield. Successive ratoon cycle exerted a depressive effect on both growth (reductions of up to 31.37% for plant height, and 42.41% for tillering), and straw yield (reduction of up to 65.87%) from one cycle to the next. Applications of nitrogen (73.15 and 65.05 cm for first and second cycles; 611 tillers.m-2 and 2,898.44 kg.ha-1 in total), zinc (70.6 and 61.88 cm; 565 tillers.m-2 and 2,296.88 kg.ha-1) and potassium (71.6 and 59.08 cm; 584 tillers.m-2 and 2,187.50 kg.ha-1) significantly increased these parameters, whereas calcium (66.28 and 50.9 cm; 465 tillers.m-2 and 1,914.06 kg.ha-1) exhibited a neutral to depressive effect across all ratoon cycles. Consequently, nitrogen, zinc, and potassium can be recommended as part of a rational fertilization strategy in ratoon culture, aiming to enhance vegetative growth and straw production of rice in Ivory Coast. VL - 13 IS - 6 ER -
Department of Natural Sciences, Nangui Abrogoua University, Abidjan, Ivory Coast
Department of Biosciences, Felix Houphouet-Boigny University, Abidjan, Ivory Coast
Department of Soil Sciences, Felix Houphouet-Boigny University, Abidjan, Ivory Coast
Department of Biosciences, Felix Houphouet-Boigny University, Abidjan, Ivory Coast
Department of Biosciences, Felix Houphouet-Boigny University, Abidjan, Ivory Coast
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