scholarly journals Effect of the Organic and NPK Fertilizers on the Growth and Yield of Sweet Potato (Ipomoea batatas (L) Lam) in the Centre of Côte d’Ivoire

Author(s):  
Bakayoko Sidiky ◽  
Konate Zoumana ◽  
Dibi Konan Evrard Brice ◽  
Kouassi Jean Hugues Martial

In Côte d’Ivoire, the sweet potato is little cultivated but stays however a culture of pension and a food mattering in certain regions. This study was conducted to assess the effect of the application of mineral (NPK 15-15-15, NPK 12-22-22) and organic (poultry manure) fertilizers on yield components of sweet potato (Ipomoea batatas (L) Lam). The experiment was conducted over two years (2016 to 2017) in experimental station of National Center of Agronomic Research (CNRA) of Bouaké in the centre of Côte d'Ivoire. The experiment was conducted following a split plot with 2 factors (variety and fertilizers) and 3 replicates. The main factor was variety with 2 levels (variety Irene and variety TIB-440060) and the subplot was fertilizers application consisted 13 levels (200, 300, 400, 500 kg ha-1 of NPK fertilizers combined 5, 10, 15 t ha-1 of organic fertilizer). Thirteen treatments based on poultry manure (T6, T7), chemical fertilizer NPK 15 15 15 (T1, T3, T4, T5) and NPK 12 22 22 (T8, T10, T11, T12) and their combination (T2 and T9) were tested. The experimental results revealed that that the effects of chemical fertilizer treatments, manure and their combination with mineral fertilizers did not influence the measured parameters. The results also showed that fertilizers improved all the agronomic parameters of sweet potato compared to the control treatment during two years of experiment. However, the Irene variety with a mean weight of 180 g tuberous roots was significantly different from the TIB variety with a mean weight of 138.73 g. In the conditions of our study and over the two-year period, producers of sweet potatoes would benefit from using organic fertilizers with the Irene variety.

2020 ◽  
Vol 9 (11) ◽  
pp. 1-12
Author(s):  
Djaban Eric Olivier Kouassi ◽  
Konan Evrard Brice Dibi ◽  
Boni N’zué ◽  
Brice Sidoine Essis ◽  
Amani Michel Kouakou ◽  
...  

2019 ◽  
Vol 15 (33) ◽  
Author(s):  
Evrard Brice Konan Dibi ◽  
Jean Hugues Martial Kouassi ◽  
Emmanuel Kouadio N’Goran ◽  
Brice Sidoine Essis ◽  
Boni N’zue ◽  
...  

Author(s):  

Abstract A new distribution map is provided for Cylas brunneus (Olivier) Coleoptera: Brentidae Hosts: Sweet potato (Ipomoea batatas). Information is given on the geographical distribution in AFRICA, Burundi, Cote d'Ivoire, Ghana, Kenya, Nigeria, Rwanda, Sierra Leone, Togo, Uganda.


Author(s):  
Kouassi Kouassi Clément ◽  
Attien Yao Paul ◽  
Coulibaly Bakary ◽  
Diomandé Siriki ◽  
Benie Comoé Koffi Donatien ◽  
...  

Aim: It consisted to identify the different species of traditional leafy vegetables consumed, to follow the technical process of production and to specifically evaluate the risk of microbial contamination of Amaranth from urban production in Daloa. Study Design:  This study focuses on the consumption of traditional leafy vegetables. Place and Duration of Study: University of Jean Lorougnon Guédé of Daloa, Côte d’Ivoire, Laboratory of Biochemistry and Microbiology, UFR Agroforestry, BP 150 Daloa, between November 2018 and April 2019. Methodology: On the study site, three planks of amaranth leave constituted a study block (sample). A total of 18 samples were analyzed. Then, mature Amaranth, ready for sale and then consumed, were subjected to microbiological characterization according to the standards. Results: There are seven main species of leafy vegetables consumed by Daloa populations and Amaranth is one of the most widely consumed leaves. The monitoring of production of these vegetables revealed that many of the actors were adults (> 30 years old), dominated by the female gender (63 %) and illiterate (70 %). The inputs were poultry manure, a mixture of dung and beef purse. In addition, the technical production routes were empirical. Microbiological analyzes of Amaranth leaf from selected areas showed a high level of bacterial contamination. Including indicator of general pollution like mesophilic aerobic germs, yeasts and molds, enterobacteria and indicator of fecal origin were isolated. It has been noticed the presence of pathogenic species such as Staphylococcus aureus, Escherichia coli and Salmonella sp in all productions. Conclusion: Amaranth leaves produced in this area aren’t suitable for human consumption and could create some sanitary risk.


Author(s):  
Hypolith Koffi Kouadio ◽  
Alain Jacques Acka. Kotaix ◽  
Zoumana Konaté ◽  
Emmanuel Koffi Kassin ◽  
Stanislas Koffi Kouakou ◽  
...  

A study on soil mineral fertilization was carried out over three years in three cocoa farms in the Nawa region of south-western Côte d'Ivoire. The aim of this study was to evaluate the effects of mineral fertilizers on the decomposition time of cocoa leaf litter. The experimental design was Fisher block with four treatments (T0, T1, T2, T3) repeated three times. The treatments were for T0, the control without fertilizer, for T1, NPK fertilizer 0-23-19, for T2, NPK fertilizer 0-15-15 + 17 CaO + 5 MgO + 1 B2O3 + 0.5 Zn and for T3, NPK fertilizer 4-10-10 + 19 CaO + 4 MgO + 0.8 B2O3 + 0.3 Zn. In each treatment, 3 plots of 1 m2 were delimited with a 1 cm2 mesh wire grid. The rate of decomposition of the cocoa leaf litter was made by measuring twice a year the weight loss of the ground litter contained in the plots. Comparison of the average decomposition rates between treatments showed that the fertilized soils had the best rates during the first 6 and 12 months of the trial. In Soubré, the T2 treatment (24.6±0.6%) in the 6th month and the T1 (72.6±6.6), T2 (82.4±1.6) and T3 (78.8±4.0%) treatments in the 12th month had the best decomposition rates. At Divo, treatment T1 (38.8±0.5%) in month 6 and treatments T1 (57.8±1.7%), T2 (67.9±10%) and T3 (66.9±7.7%) in month 12 were the best. At Méagui, decay rates did not differ between treatments throughout the trial. The application of mineral fertilizers resulting from soil diagnosis reduced the decomposition time of the cocoa leaf litter.


2021 ◽  
Vol 17 (10) ◽  
Author(s):  
Kouame N’guessan ◽  
Dibi Konan Evrard Brice ◽  
Essis Brice Sidoine ◽  
Toure Nin Céline ◽  
Ngbesso Mako François De Paul

La production de la patate douce, Ipomoea batatas (L.) Lam., reste confrontée à de nombreuses contraintes agronomiques. Pour mieux faire face à ces contraintes, une étude a été réalisée dans le but de déterminer les caractères agronomiques de sept (7) variétés de patate douce cultivée au centre de la Côte d’Ivoire (Bouaké) afin de sélectionner les variétés les plus adaptées. Dans cette étude, le taux de survie, la biomasse aérienne, la résistance aux insectes et ravageurs ont été évalués. Les résultats obtenus ont montré que les variétés Covington, CIP et Irène ont enregistré les meilleurs taux de survie. Au niveau de la biomasse aérienne la variété Irène s’est distinguée des autres variétés. La variété Fadanga a été moins sensibles pour l’ensemble des nuisibles influençant la patate douce.


2021 ◽  
pp. 145-153
Author(s):  
Serge Couhoulé Allou ◽  
Catherine Bomoh Ebah ◽  
Jean-Baptiste Gnelie Gnahoua ◽  
Bilo Régis Jean-François LOA ◽  
FrançoiseAkissi Kouamé

Cassava occupies an important place in the food security of populations in Côte d'Ivoire. There are many products derived from cassava but«attiéké» remains the flagship product in Côte d'Ivoire. Faced with the productivity challenges, organic fertilization is increasingly used by farmers in order to sustainably increase cassava production. The perspective of our study is to assess the effects of the uncombined use of cowpea and poultry manure as organic soil fertilizers on certain physicochemical and sensory characteristics of «attiékés» of three varieties of cassava. To do this, on an experimental plot installed, cowpea fertilization was tested at planting densities of 62,500; 250,000 and 125,000 plants/ha and poultry manure at rates 5; 15 and 5 t/haon, respectively, the cassava varieties Yavo, BoCou1 and Yacé.The results obtained show that cowpea and poultry manure increased the dry matter content respectively by 3.99 and 3.53 % in the Yavo variety by 3.57 and 18.06 % in the BoCou 1 as well as by 17.43 and 17.64 % in the Yacé. For the other parameters of pH, titratable acidity, total carbohydrates and free glucose, the variations depended on the variety and the level of fertilization. The sensory attributes of attiekes from these varieties grown on fertilized soil have been accepted by consumers in terms of color, smell, taste and consistency. In addition, they were rated less good than the controls obtained without fertilizer due to color, taste and consistency, while in terms of odor, it would be the same rating.


2019 ◽  
Vol 27 (3) ◽  
pp. 375
Author(s):  
D.E.O. Kouassi ◽  
B. N’Zué ◽  
B.S. Bonny ◽  
K.E.B. Dibi ◽  
B.S. Essis ◽  
...  

2018 ◽  
Vol 7 (5) ◽  
pp. 36 ◽  
Author(s):  
Gisele Koua ◽  
Thierry Zoue ◽  
Rose-Monde Megnanou ◽  
Sebastien Niamke

Sweet potato is an important food security crop in Sub-Saharan Africa. In Côte d’Ivoire, the roots are widely consumed as supplementary staple food or secondary food. The present study is conducted to highlight the nutritive composition, antinutrients and β-carotene contents of local sweet potatoes consumed in Côte d’Ivoire. The nutritive properties and antinutritive factors of these sweet potatoes were investigated using standard methods. Results confirmed the energetic value (363±1.63-374.08±0.56 kcal/100 g DM) of whole sweet potato flour, mainly due to its high carbohydrate content (86.75±0.40%-90.87±0.12%). Whole flour recorded low contents of moisture (4.50±0.10-6.30±0.15%), lipids (0.63±0.08-1.94±0.95%) and proteins (0.94±0.36-1.91±0.15%). The antinutritive factors ranged from 55.84±0.13 to 70.52±0.07 mg/100 g DM and 52.30±5.81-92.44±11.10 mg/100 g DM for oxalates and phytates, respectively. The mineral contents were: magnesium (49.37±1.09-540.87±0.82 mg/100 g DM), calcium (50.28±1.14-110.53±0.79 mg/100 g DM), phosphorus (25.12±1.04-42.75±0.82 mg/100 g DM), potassium (906.25±0.33-1625±0.61 mg/100 g DM), and iron (5.62±0.84-26.89±0.76 mg/100 g DM). The sweet potato flours highlighted polyphenols and antioxidant activity varying from 92.80±98.20±1.72 to 224.46±0.86 mg GAE /100 g DM, and 31.03±0.52-58.63±0.60%, respectively. While β-carotene levels of flours varied from 0.19±0.08 to 22.71±0.67 µg/g DM for white to orange cultivars. At the whole, the orange fleshed sweet potato cultivars recorded an appreciable amount of minerals (magnesium, iron and calcium), polyphenols and greater antioxidant activity. This indicates that these sweet potato cultivars may present a potential asset for their using as natural antioxidants to prevent chronic diseases and undernourishment caused mineral deficiency. The results also showed that the orange-fleshed varieties may contribute for vitamin A deficiencies alleviation in children of rural areas of Côte d’Ivoire.


Sign in / Sign up

Export Citation Format

Share Document