scholarly journals Diagnostique de production de l’oignon dans la partie Septentrionale du Cameroun

2021 ◽  
Vol 15 (3) ◽  
pp. 923-935
Author(s):  
Jérémie Dinissia ◽  
Lucien Tatchum Tcheunteu ◽  
Abba Maimouna ◽  
Hawaou ◽  
Habib Alium ◽  
...  

Oignon (Allium cepa L.) est une culture maraîchère présentant un atout économique important pour les paysans Camerounais. Cette étude visait à faire un diagnostic de production de l’oignon dans la partie Septentrionale du Cameroun afin de développer des stratégies d’amélioration durable de cette filière. Une enquête a été menée pour déterminer le profil des acteurs de la filière oignon, les variétés cultivées, les techniques culturales ainsi que les contraintes de production. Les enquêtes s’étaient déroulées en 2017 auprès des acteurs de la filière oignon. L’échantillonnage était constitué de 60 personnes dans chacune des trois régions du Grand Nord Cameroun, soit un échantillonnage global de 180 personnes. Les résultats montrent que la plupart des acteurs sont des producteurs et sont 1,47 fois plus nombreux que les commerçants. 04 variétés d’oignon sont cultivées : Goudami, Chagari, Belami et violet de Galmi. La variété Goudami avait un rendement en bulbe élevé (10 à 35 t/ha), une durée de conservation des bulbes plus importante et est la plus cultivée. La quasi-totalité (69%) des producteurs utilise les engrais chimiques pour améliorer le rendement de cette culture. Ces informations serviront de base de données dans le programme de perfectionnement de la filière oignon au Cameroun. English title: Diagnosis of onion production in the Northern Part of Cameroon Onion (Allium cepa L.) is a market garden crop that is a major economic asset for Cameroonian farmers. This study aimed at diagnosing onion production in the Northern part of Cameroon in order to develop strategies for onion sustainable improvement. A survey was conducted to determine the actors profile relative to onion sector, varieties grown, crop techniques as well as production constraints. The surveys were conducted in 2017 among actors of onion sector. The sample consisted of 60 people in each of the three regions of Far North Cameroon, for an overall sample of 180 people. The results shown that most of the actors are producers, they are 1.47 folds greater than traders. Four onion varieties are grown in the Northern part of Cameroon: Goudami, Chagari, Belami and Galmi violet. The Goudami variety presents high bulb yield (10 to 35 t/ha) and longer bulb shelf life, and is the most widely cultivated. Almost all (69%) of the producers use chemical fertilizers to improve onion growth. This information will be used as a database to improve the performance of onion sector in Cameroon.

2019 ◽  
Vol 12 (18) ◽  
Author(s):  
Mumtaz Khan ◽  
Kaneez Fatima ◽  
Rehan Ahmad ◽  
Rafia Younas ◽  
Muhammad Rizwan ◽  
...  

2018 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
A. A. Gulumbe ◽  
L. Abubakar ◽  
B. M. Sokoto ◽  
A. A. Aliero
Keyword(s):  

2018 ◽  
Vol 9 (4) ◽  
pp. 1-6
Author(s):  
A. A. Gulumbe ◽  
L. Abubakar ◽  
B. M. Sokoto ◽  
A. A. Aliero

2020 ◽  
pp. 1
Author(s):  
Assinapol Ndereyimana ◽  
Shinichi Koyama ◽  
Boniface Kagiraneza

2013 ◽  
Vol 50 (1-2) ◽  
pp. 221-229
Author(s):  
Jan Rumpel ◽  
Kazimierz Felczyński

Two field experiments were conducted to study the effect of plant density on yield, size grading and maturity of onion bulbs grown from seeds. In the first experiment carried out during 1991-1993, three onion cultivars (Hysam F<sub>1</sub> , Mercato F<sub>1</sub> and Sochaczewska) were sown for intended densities of 20, 40, 60, 80,100 and 140 plants m<sup>-2</sup>, whereas in the second one, in 1996, six onion cultivars (Spirit F<sub>1</sub>, Summit F<sub>1</sub>, Hyduro F<sub>1</sub>, Armstrong F<sub>1</sub>, Renate F<sub>1</sub> and Robusta) were sown for intended densities of 40, 60 and 80 plants m<sup>-2</sup>. The onions were grown on beds, 1,35 m wide, in 4 rows per bed (27+27+27+54 cm). Marketable yield increased with plant density, and depending on year was highest at 80 or 100 plants m<sup>-2</sup>. The average marketable yield of the 1991-1993 experiment increased from 20.5 t·ha<sup>-1</sup> at 20 plants m<sup>-2</sup> to 32.8 t·ha<sup>-1</sup> at 80 plants m<sup>-2</sup>, whereas that of the 1996 experiment increased from 48,9 t-ha<sup>-1</sup> at 40 plants m-2 to 59.0 t·ha<sup>-1</sup> at 80 plants m<sup>-2</sup>, respectively. Yield of large bulbs decreased with density and was highest at 20-40 plants m<sup>-2</sup>, oposite to the yield of small bulbs, which was highest at the highest density of 140 plants·m<sup>-2</sup>. The medium bulb yield increased with density, at the some way as compared the total marketable yield. No greater effect of cultivar on bulb size grades was found and the existing differences were proportional to the total marketable yield . Plant density hastened maturity of onions, and at density of 140 plants m<sup>-2</sup> the leaf fall-over occurred 9-10 days earlier as compared at density of 20 plants m<sup>-2</sup>. The cultiwars used. can be placed in the following order of decreasing productivity: 1 . Mercato F<sub>1</sub>, 2. Hysam F<sub>1</sub> and 3. Sochaczewska, - in the first expeiiment (1991-93) and 1. Annstrong F<sub>1</sub>, 2. Spirit F<sub>1</sub>, 3. Robusta, 4. Renate F<sub>1</sub>, 5. Hyduro F<sub>1</sub> and 6. Summit F<sub>1</sub> - in the second experiment (1996), respectively.


2002 ◽  
Vol 1 (6) ◽  
pp. 675-677 ◽  
Author(s):  
Derawadan . ◽  
Shoukat Ali . ◽  
Mohammad Tahir . ◽  
Abdul Majeed . ◽  
Ayub Khan .

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