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Adaptation and Observation Trial of the Influence of Three Composts on the Yield of Carrot (Daucos Carota L.) Under The Agro-Ecological Conditions of Gbadolite in the Democratic Republic of Congo Molongo Mokondande Médard; Ngalakpa Ziada Héritier; Mbaya Isaac; Nzolowa Banze Francis; Muhammad Ridwan
Budapest International Research in Exact Sciences (BirEx) Journal Vol 5, No 3 (2023): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v5i3.7713

Abstract

The aim of the present study was to initiate an adaptation trial and observe the influence of three composts on carrot yield under the agro-ecological conditions of Gbadolite. The experimental design adopted was that of randomized complete blocks with 4 treatments distributed over 3 replications. The total area of the experimental field was 28.8 m2, i.e. 8 m long and 3.6 m wide. Each elementary plot had an area of 2.4 m², i.e. 2 m long and 1.20 m wide. The distance between the blocks was 0.50 m and the plots were also 1.00 m apart. Treatments were as follows: T0: Unamended control plot; T1: Bursary; T2: Chromolaena+legume amendment; T3: Chromolaena+grass amendment. Each treatment was amended with 15kg of compost per bed following the composts. Final planting was carried out at 0.15 m x 0.40 m spacing, with one plant per stake, i.e. a density of 30 plants per plot of 2.4 m2 each. The plot enriched with dung compost yielded 16.75 t/ha (T3); the plot amended with C. odorata + grasses yielded 14.25 t/ha; the plot amended with C. odorata + legume mulch yielded 13.33 t/ha; and the control plot yielded 8.17 t/ha. Carrot cultivation is therefore feasible in the agro-ecological conditions of gbadolite.
Study on the Safety and Security of Dangerous Goods at Compagnie Africaine d'Aviation: Kinshasa Stopover in the Democratic Republic of Congo Ngbangu Woza Eric; Molongo Mokondande Médard; Ngalakpa Ziada Héritier; Nzolowa Banze Françis; Muhammad Ridwan
Budapest International Research in Exact Sciences (BirEx) Journal Vol 5, No 3 (2023): Budapest International Research in Exact Sciences, July
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v5i3.7715

Abstract

The aim of this study is to examine the correct handling of dangerous goods by Compagnie Africaine d'Aviation (CAA), in order to limit the risks that could arise from non-compliance with the rules governing the safety and security of dangerous goods. A mixed-methods approach was adopted, using descriptive, analytical and comparative methods, as well as interview, survey, observation and documentation techniques. Data collection and analysis showed that air transport of hazardous materials or products by Compagnie Africaine d'Aviation, despite the existence of regulatory standards, does not really comply with the minimum provisions set by the International Civil Aviation Organization and the Civil Aviation Authority of the Democratic Republic of Congo in terms of safety and security. A low level of handling of dangerous goods was observed in first position with 60%, followed by a medium level of 30% and a very low level of 10%. In view of this result, it should be pointed out that resources need to be invested in training and capacity building for personnel handling these dangerous products.