scholarly journals Evaluation of agronomic descriptors of two cassava varieties (Manihot esculenta Crantz) on ten innovative substrates in Daloa (Côte d'Ivoire)

2021 ◽  
Vol 11 (3) ◽  
pp. 093-101
Author(s):  
Serge Kouadio N'GONIAN ◽  
Auguste-Denise Mambé BOYE ◽  
Junior Kévin Borel AKA

In Côte d'Ivoire, cassava production is carried out by small-scale planters who use very few technical means and local cultivars that are not very productive and susceptible to diseases. The objective of this study is to maximize the recovery of cassava cuttings after planting. To this end, ten substrates of single, double, triple and quadruple composition were made from soil supplemented with sawdust, chicken droppings, carbonized rice husks and NPK 10 18 18 to regenerate dehydrated cassava Bocou 1 and Yavo mini-cuttings. The recovery rate of the mini-cuttings was evaluated as well as the agro-morphological parameters of the seedlings for 21 days. Results showed that the recovery rate was very high on the carbonized rice husk substrate (86.5% in Bocou 1 and 85.5% in Yavo). In addition, the substrates significantly influenced the growth parameters of the seedlings. Thus, the substrate composed of carbonized chicken-bale soil had the highest number of leaves, with 6 leaves per plant in Bocou 1 and 10 leaves in Yavo, with an average height ranging from 10.99 ± 1.22 (Bocou 1) to 20.23 ± 1.16 (Yavo). The results of this study will help orient the actors of the cassava sector towards a new cultivation technique.

2020 ◽  
Vol 14 (1) ◽  
pp. 55-68
Author(s):  
Laopé Ambroise Casimir Siene ◽  
Mohamed Doumbouya ◽  
Mohamed Sahabane Traore ◽  
Mariame Conde ◽  
Tah Valentin Felix N’guettia ◽  
...  

Face à un appauvrissement des sols et une irrégularité des pluies du fait du changement climatique, une étude a été entreprise sur la culture du maïs au Centre-Nord de la Côte d’Ivoire. Elle avait pour objectif d’évaluer l’influence de quatre types de fumures sur le potentiel agronomique de deux génotypes de maïs (Zea mays L.) en cas de contrainte hydrique de fin de cycle et d’infertilité des sols. Le dispositif expérimental a été un split-plot, dont le premier facteur a été les fertilisants et le second, la variété. Les résultats ont montré que les fumures ont influencé les durées des phases végétative et reproductive en plus du rendement. Les fumures fiente de poulet et déjection de boeuf ont permis d’obtenir un rendement qui est égal à six fois celui obtenu avec le témoin de la variété à grain noir malgré la contrainte hydrique. Aussi, la fumure fiente de poulet a eu une tendance à réduire le cycle de culture et favoriser une meilleure croissance et un bon développement des plantes. L’utilisation de ces fumures en culture du maïs, pourrait constituer une alternative aux conséquences drastiques du changement climatique. © 2020 International Formulae Group. All rights reserved. Mots clés: Fertilisants, maïs (Zea mays L.), potentiel agronomique, rendement, contrainte hydrique English Title: Effect of four types of fertilizers on the growth and productivity of two maize genotypes (Zea mays L.) in the event of late planting in Korhogo in North-Central Côte d'Ivoire English Abstract Faced with soil depletion and irregular rains due to climate change, a study was undertaken on maize cultivation in North-Central Côte d'Ivoire. Its objective was to assess the influence of four types of manure on the agronomic potential of two maize genotypes (Zea mays L.) in cases of water stress and soil infertility. The experimental set-up was a split-plot, the first five-level factor being fertilizers and the second two-level factor being variety. Observations were made on phenology, growth parameters and yield. The results showed that manure influenced vegetative and reproductive time, growth parameters and yield. In terms of yield, chicken droppings and beef droppings were the most effective. They yielded six times the yield obtained with the black-grain variety control despite the water constraint at the end of the cycle. Also, chicken manure has had a tendency to reduce the growing cycle and promote better growth and plant development. The use of these manure in maize cultivation could be an alternative to the drastic consequences of climate change. © 2020 International Formulae Group. All rights reserved. Keywords: Fertilizers, corn (Zea mays L.), agronomic potential, yield, water constraint


Author(s):  
Kouakou Marius Konan ◽  
Sifolo Seydou Coulibaly ◽  
Kouadio Ignace Kouassi ◽  
Bi Irié Arsène Zoro ◽  
Dénezon Odette Dogbo

This study aimed to evaluate the effect of compost from chicken manure, NPK fertilizer and the mixture of both fertilizers on agronomic parameters of four varieties of cassava (Yacé, Bonoua, Six mois and Alleda agba) in Côte d’Ivoire. The field experiment was carried out under a randomized complete block design with three replicates on a ferralitic soil during two season-cycles. The results showed that the different fertilizers stimulated plants growth and tuberous roots production. The highest number of stems (3) and leaves (66) was obtained with the mixture of NPK and compost applied on the variety “Bonoua”. All varieties that received the compost mixed with NPK produced more leaves with a dominance of the Bonoua variety (65.57). The highest number of tuberous roots (5.58), the heaviest weight per root (6.13 kg) and the highest yield (61.37 t/ha) were obtained while using the mixture of compost and NPK as fertilizer and “Bonoua” as variety. Thus, mixing compost from chicken manure and NPK can be recommended to improve cassava productivity in Côte d'Ivoire on a ferralitic soil.


2021 ◽  
Vol 3 (1) ◽  
pp. 53-60
Author(s):  
Dogniméton Soro ◽  
Lacina Yeo ◽  
Zoumana Konate ◽  
Martinez Arnauth Guei ◽  
Gohi Ferdinand Zro-Bi

Food security is a major development issue in Côte d’Ivoire that is experiencing population growth over 3% per year. Food crop production, however, is experiencing weak growth, most often linked to increase in area. In addition, low yields could be explained by the scarcity of rainfall in a context where farmers hardly use agronomic-based fertilizers without soil analysis although Cote d’Ivoire is agricultural based developing country. To be part of integrated production logic in rice production, a study is initiated in 2016 in Daloa in order to improve the yield of paddy rice by using a local amendment produced by termites kept in captivity on agricultural residues. Four (4) doses of this amendment made of termites’ waste products (TWP): 1.8%; 3.6% and 7.2% and 14.4% of one hectare soil weight were tested versus an unfertilized (control) and a NPK fertilized (100kg.ha)-. The experimental design consists of randomized complete blocks with three replicates. Plant growth parameters such as plant height at maturity, total number of tillers, number of leaves at the beginning of tillering, biomass at maturity and yield data were collected. The results showed that all agronomic parameters were improved with increasing dose up to an optimum dose that can be found between 7.2 % and 14.4 % of termites’ waste products. The highest yield (2484.3 kg.ha-1) was obtained with the 7.2 % dose. The results of the application of the TWP on rice showed important yield increases with efficacy varying from 30 to 72 % compared to common fertilizer application and 27.1 to 221.9 % if compared to non-fertilized plot.


2015 ◽  
Vol 2 (1) ◽  
pp. 009-017
Author(s):  
Kouablan Edmond Koffi ◽  
◽  
Kouassi Guy Brou ◽  
Kan Modeste Koussi ◽  
Ahou-yah Gisèle Koua ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document