Volume 24, Issue 3, October 2018, Pages 1252–1260
Chinawej Mbar Mukaz Dieudonné1
1 Département des Sciences Agronomiques et Vétérinaires, Section des Sciences Exactes, Institut Supérieur Pédagogique de Lubumbashi, BP 1796, Lubumbashi, RD Congo
Original language: French
Copyright © 2018 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.
The study was conducted to determine the adequate dose of nitrogen for good production of okra; given that the latter is one of the most consumed fruit in the markets lushois vegetables. Our experience took place in the neighborhood golf plateau in the joint annex to the city of Lubumbashi, in the province of upper Katanga in the Democratic Republic of the Congo. The study site was like geographic coordinate: 11.66964 ° of South Latitude, Longitude East 27.41597 and 1245metre of Altitude. As part of this work, a Latin square experimental device has been used. Three doses of nitrogen (urea) (200,250 and 300 kg/ha) were combined with 250 Kg of NPK17-17-17 per hectare brought before sowing in basal. These from the combination of doses of urea of NPK17-17-17 treatments were compared to the witness who received that the ternary compound fertilizers (NPK17-17-17). The results obtained after the observation of all the parameters observed (the rate of survey, the size of the plant to bloom, the number of fruits per plant, the length of the fruit, diameter of the fruits as well as performance) have shown that the contribution additional doses of nitrogen have favored the growth and the development of our culture. For what is the average yield per hectare, the treatments: T1, T2, and T3 gave the respective returns of: 5, 8 t/ha, 8 t/ha and 5, 3 t/ha higher compared to the control with 4, 0 t/ha.
Author Keywords: effect, increasing doses, fertilization.
Chinawej Mbar Mukaz Dieudonné1
1 Département des Sciences Agronomiques et Vétérinaires, Section des Sciences Exactes, Institut Supérieur Pédagogique de Lubumbashi, BP 1796, Lubumbashi, RD Congo
Original language: French
Copyright © 2018 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
The study was conducted to determine the adequate dose of nitrogen for good production of okra; given that the latter is one of the most consumed fruit in the markets lushois vegetables. Our experience took place in the neighborhood golf plateau in the joint annex to the city of Lubumbashi, in the province of upper Katanga in the Democratic Republic of the Congo. The study site was like geographic coordinate: 11.66964 ° of South Latitude, Longitude East 27.41597 and 1245metre of Altitude. As part of this work, a Latin square experimental device has been used. Three doses of nitrogen (urea) (200,250 and 300 kg/ha) were combined with 250 Kg of NPK17-17-17 per hectare brought before sowing in basal. These from the combination of doses of urea of NPK17-17-17 treatments were compared to the witness who received that the ternary compound fertilizers (NPK17-17-17). The results obtained after the observation of all the parameters observed (the rate of survey, the size of the plant to bloom, the number of fruits per plant, the length of the fruit, diameter of the fruits as well as performance) have shown that the contribution additional doses of nitrogen have favored the growth and the development of our culture. For what is the average yield per hectare, the treatments: T1, T2, and T3 gave the respective returns of: 5, 8 t/ha, 8 t/ha and 5, 3 t/ha higher compared to the control with 4, 0 t/ha.
Author Keywords: effect, increasing doses, fertilization.
Abstract: (french)
L’Etude a été mené pour déterminer la dose d’azote adéquate pour une bonne production du gombo ; étant donné que ce dernier est un des légumes fruits le plus consommés sur les marchés Lushois. Notre expérience a eu lieu au quartier golf plateau dans la commune annexe de la ville de Lubumbashi, dans la province du haut Katanga en République démocratique du Congo. Le site d’étude avait comme coordonnée géographique : 11.66964° de Latitude Sud, 27.41597 de Longitude Est et 1245metre d’Altitude. Dans le cadre de ce travail, un dispositif expérimental en carre latin a été utilisé. Trois doses d’azote (urée) (200,250 et 300kg/ha) étaient combinées avec 250Kg de NPK17-17-17 par hectare apporté avant le semis en fumure de fond. Ces traitements issus de la combinaison de doses d’urée de NPK17-17-17 étaient comparés au témoin ayant reçu que l’engrais composé ternaire (NPK17-17-17). Les résultats obtenus après l’observation de tous les paramètres observés (le taux de levé, la taille de la plante à la floraison, le nombre des fruits par plant, la longueur des fruits, diamètre des fruits ainsi que le rendement) ont montrés que l’apport supplémentaire des doses d’azote ont favorisés la croissance et le développent de notre culture. Pour ce qui est du rendement moyen à l’hectare, les traitements : T1, T2 et T3 ont donné les rendements respectifs de : 5,8t/ha, 8t/ha et 5,3t/ha supérieur par rapport au témoin avec 4,0t/ha.
Author Keywords: Effet, doses croissantes, fertilisation.
How to Cite this Article
Chinawej Mbar Mukaz Dieudonné, “Effets des doses croissantes d’azote sur le comportement du gombo (Abelmoschus esculentus var. Clemson spineless) dans les conditions edapho-climatique de Lubumbashi et ses environs,” International Journal of Innovation and Applied Studies, vol. 24, no. 3, pp. 1252–1260, October 2018.
