[ Efficacité de la nutrition minérale sur les rendements et les teneurs en minéraux P, K, Ca, Mg et Zn des grains et la paille des repousses de riz (Oryza sp) variété Nerica L 14 de bas-fond inondable en régime pluvial ]
Volume 64, Issue 1, December 2022, Pages 33–43
Kouakou Olivier KONAN1, Théodore Alla Kouadio2, and N’Ganzoua Kouamé René3
1 Université Felix Houphouët Boigny, UFR Biosciences, Laboratoire de physiologie végétale, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Institut Pédagogique National de l’Enseignement Technique et Professionnel, Département de Formation des Formateurs aux Métiers de l’Agriculture, 08 BP 2098 Abidjan 08, Côte d’Ivoire
3 Département de Pédologie, Université Jean Lorougnon Guédé, UFR Agroforesterie, Daloa, Côte d'Ivoire
Original language: French
Copyright © 2022 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Field fertilization trials were conducted on 15 cm high rice stubble in lowland rainfed rice to determine the effectiveness of mineral nutrition on yields and mineral contents of grain and straw of Nerica L 14 ratoon. 4 complete block design of 7 fully randomized treatments were used. N and K significantly stimulated tillering (p= 0,05; 419 and 407 Nbm-2), panicle production (p = 0.04; 330 and 337 Nbm-2), number of grains per panicle (p = 0,00; 66 grains / panicle) as did P, Ca, Mn and Zn. GY and SY due to N were highest by 1,7 tha-1 (p < 0,00) and 1,4 tha-1 (p = 0,01), respectively. However, IRZn (p = 0,04; 68%) was the most important. N promoted high K accumulation in straw (p = 0,02; 1,89% DM) as did Mg (1,72% DM) and Ca (p = 0,01; 0,28% Ms) in grain. 100 N kgha-1 or in combination with 10 Zn kgha-1 may be recommended for rainfed lowland rice ratoon cultivation.
Author Keywords: fertilization, yields, ratoon rice, nutrients effectiveness.
Volume 64, Issue 1, December 2022, Pages 33–43
Kouakou Olivier KONAN1, Théodore Alla Kouadio2, and N’Ganzoua Kouamé René3
1 Université Felix Houphouët Boigny, UFR Biosciences, Laboratoire de physiologie végétale, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Institut Pédagogique National de l’Enseignement Technique et Professionnel, Département de Formation des Formateurs aux Métiers de l’Agriculture, 08 BP 2098 Abidjan 08, Côte d’Ivoire
3 Département de Pédologie, Université Jean Lorougnon Guédé, UFR Agroforesterie, Daloa, Côte d'Ivoire
Original language: French
Copyright © 2022 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Field fertilization trials were conducted on 15 cm high rice stubble in lowland rainfed rice to determine the effectiveness of mineral nutrition on yields and mineral contents of grain and straw of Nerica L 14 ratoon. 4 complete block design of 7 fully randomized treatments were used. N and K significantly stimulated tillering (p= 0,05; 419 and 407 Nbm-2), panicle production (p = 0.04; 330 and 337 Nbm-2), number of grains per panicle (p = 0,00; 66 grains / panicle) as did P, Ca, Mn and Zn. GY and SY due to N were highest by 1,7 tha-1 (p < 0,00) and 1,4 tha-1 (p = 0,01), respectively. However, IRZn (p = 0,04; 68%) was the most important. N promoted high K accumulation in straw (p = 0,02; 1,89% DM) as did Mg (1,72% DM) and Ca (p = 0,01; 0,28% Ms) in grain. 100 N kgha-1 or in combination with 10 Zn kgha-1 may be recommended for rainfed lowland rice ratoon cultivation.
Author Keywords: fertilization, yields, ratoon rice, nutrients effectiveness.
Abstract: (french)
Des essais de fertilisation au champ ont été réalisés sur des chaumes de riz hauts de 15 cm en riziculture pluviale de bas-fond pour déterminer l’efficacité de la nutrition minérale sur les rendements et les teneurs en minéraux des grains et la paille des repousses de Nerica L 14. Un dispositif en 4 blocs complets de 7 traitements totalement randomisés a été utilisé. N et K ont significativement stimulé le tallage (p= 0,05; 419 et 407 Nbm-2), la production de panicules (p = 0,04; 330 et 337 Nbm-2), le nombre de grains par panicule (p = 0,00; 66 grains / panicule) comme P, Ca, Mn et Zn. Les RDG et RDP dus à N ont été les plus élevés respectivement de 1,7 tha-1 (p < 0,00) et de 1,4 tha-1 (p = 0,01). Cependant, IRZn (p = 0,04; 68 %) a été le plus important. N a favorisé une grande accumulation de K dans la paille (p = 0,02; 1,89 % MS) comme Mg (1,72 % MS) et Ca (p = 0,01; 0,28 % Ms) dans les grains. 100 N kgha-1 ou en association avec 10 Zn kgha-1 peuvent être recommandés pour une culture pluviale de repousses de riz de bas-fond.
Author Keywords: fertilisation, rendements, repousses de riz, efficacité des nutriments.
How to Cite this Article
Kouakou Olivier KONAN, Théodore Alla Kouadio, and N’Ganzoua Kouamé René, “Mineral nutrition effectiveness on flood-prone lowland ratoon rice (Oryza sp) Nerica L 14 variety grain and straw minerals P, K, Ca, Mg and Zn contents and yields under rainfield regime,” International Journal of Innovation and Scientific Research, vol. 64, no. 1, pp. 33–43, December 2022.
