[ Effet des fertilisants organiques et inorganiques sur la production de riz (Oryza sativa) pluvial cultivé à Beré au Tchad ]
Alain Ignassou DJINET1, Kilya Souang2, and Memti Mberdoum NGUINAMBAYE3
1 Département de Biologie et Physiologie végétales, Laboratoire de Biosciences, Unité de Formation et de Recherche en sciences de la Vie et de la Terre, Université de Ouagadougou, 03 BP 7021, Ouagadougou 03, Burkina Faso
2 Ecole Normale Supérieure de Bongor, Département des Sciences de la Vie et de la Terre, BP 15 Bongor, Chad
3 Département de Biologie et Physiologie végétales, Laboratoire de Biosciences, Unité de Formation et de Recherche en sciences de la Vie et de la Terre, Université de Ouagadougou, 03 BP 7021, Ouagadougou 03, Burkina Faso
Original language: French
Copyright © 2025 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.
Inadequate use of mineral fertilizers causes leaching and impoverishment of soil which results in a considerable drop in yield. The use of organic fertilizers seems to be a reliable alternative to improve yield. The objective of the work is to evaluate the effect of goat waste at different levels in order to determine the optimal dose for better rice production. It also aims to verify the idea that mineral fertilizer modifies the organoleptic quality of food. For this the length of the plants was measured and the associated maximum growth speed was determined. The number of tillers per plot, the number of panicles per plot, the number of grains per tiller, the weight of grains per tiller were recorded and the yield was estimated. The results showed that the parameters studied were significantly influenced by the fertilizer inputs. Thus the highest height (77.33 cm) was observed in the plants having received the dose of 2.5 kg/m2 of goat waste with the maximum growth speed of 5.11 cm per day reached on the 85th day after sowing. The same goes for the number of tillers per plot (336) and the number of panicles per plot (329.33). While the highest number of grains per tiller (1253), weight of grains per tiller (26.42) and yield were noted in plants treated with 10 g NPK and 5g Urea. In addition, the rice having been treated with goat waste is sweet (60 %) and presents a good floury appearance (86.67 %). The dose of 2 kg/m2 of goat waste seem to be optimal for the cultivation of rain fed rice. Thus goat waste could validly replace mineral fertilizer in soil fertilization.
Author Keywords: river rice, fertilizers, growth, yield, Chad.
Alain Ignassou DJINET1, Kilya Souang2, and Memti Mberdoum NGUINAMBAYE3
1 Département de Biologie et Physiologie végétales, Laboratoire de Biosciences, Unité de Formation et de Recherche en sciences de la Vie et de la Terre, Université de Ouagadougou, 03 BP 7021, Ouagadougou 03, Burkina Faso
2 Ecole Normale Supérieure de Bongor, Département des Sciences de la Vie et de la Terre, BP 15 Bongor, Chad
3 Département de Biologie et Physiologie végétales, Laboratoire de Biosciences, Unité de Formation et de Recherche en sciences de la Vie et de la Terre, Université de Ouagadougou, 03 BP 7021, Ouagadougou 03, Burkina Faso
Original language: French
Copyright © 2025 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
Inadequate use of mineral fertilizers causes leaching and impoverishment of soil which results in a considerable drop in yield. The use of organic fertilizers seems to be a reliable alternative to improve yield. The objective of the work is to evaluate the effect of goat waste at different levels in order to determine the optimal dose for better rice production. It also aims to verify the idea that mineral fertilizer modifies the organoleptic quality of food. For this the length of the plants was measured and the associated maximum growth speed was determined. The number of tillers per plot, the number of panicles per plot, the number of grains per tiller, the weight of grains per tiller were recorded and the yield was estimated. The results showed that the parameters studied were significantly influenced by the fertilizer inputs. Thus the highest height (77.33 cm) was observed in the plants having received the dose of 2.5 kg/m2 of goat waste with the maximum growth speed of 5.11 cm per day reached on the 85th day after sowing. The same goes for the number of tillers per plot (336) and the number of panicles per plot (329.33). While the highest number of grains per tiller (1253), weight of grains per tiller (26.42) and yield were noted in plants treated with 10 g NPK and 5g Urea. In addition, the rice having been treated with goat waste is sweet (60 %) and presents a good floury appearance (86.67 %). The dose of 2 kg/m2 of goat waste seem to be optimal for the cultivation of rain fed rice. Thus goat waste could validly replace mineral fertilizer in soil fertilization.
Author Keywords: river rice, fertilizers, growth, yield, Chad.
