Effect of Agricultural Residues Based-Compost on the Yield of Amaranthus hybridus L. (Amaranthaceae) in Gbado-Lite City, Nord-Ubangi (Democratic Republic of the Congo)

Koto-te-Nyiwa Ngbolua (Faculty of Agricultural Sciences, University of Gbado-Lite, Gbado-Lite, Department of Biology, Faculty of Science, University of Kinshasa, Kinshasa,)
Zuangbo Innocent (Faculty of Agricultural Sciences, University of Gbado-Lite, Gbado-Lite,)
Molongo Medard (Faculty of Agricultural Sciences, University of Gbado-Lite, Gbado-Lite, Ubangi-BioXplore Project, University of Gbado-Lite, Gbado-Lite,)
Masengo Ashande Colette (Ubangi-BioXplore Project, University of Gbado-Lite, Gbado-Lite, Department of Environment Sciences, Faculty of Science, University of Gbado-Lite, Gbado-Lite,)
Djolu Djoza Ruphin (Ubangi-BioXplore Project, University of Gbado-Lite, Gbado-Lite, Department of Environment Sciences, Faculty of Science, University of Gbado-Lite, Gbado-Lite,)
Yabuda Honore (Faculty of Agricultural Sciences, University of Gbado-Lite, Gbado-Lite, Ubangi-BioXplore Project, University of Gbado-Lite, Gbado-Lite,)
Gedeon Ngiala Bongo (Department of Biology, Faculty of Science, University of Kinshasa, Kinshasa,)
Gbolo Zoawe Benjamin (Department of Biology, Faculty of Science, University of Kinshasa, Kinshasa,)
Monde-te-Kazangba Godefroid (Department of Environment Sciences, Faculty of Science, University of Gbado-Lite, Gbado-Lite)

Budapest International Research in Exact Sciences (BirEx Journal)
Vol 1, No 4 (2019): Budapest International Research in Exact Sciences, October

An experimental study was conducted in Gbadolite city to develop composts from peanut (Groundnut) and maize residues alone or combined. The study found that plots modified with compost based on peanut (Groundnut)  residues combined with corn residues are of good quality compared to  non-waste compost combined and unamended plots as indicated by the average values of plant height (91.9±0.79 cm vs. 54.0±1.35 cm), diameter at the collar (12.66±0.47 mm vs. 9.00±1.41 mm); number of leaves ( 20.6±0.47 vs. 15.6±0.47); leaf lengths (23.5±1.17 cm vs. 19.4±1.92 cm ); leaf widths (7.32±0.44 cm vs. 6.34±0.68 cm) yield per hectare ( 22.63±0.67T/ha vs 11.51±2.85 T/ha ). It is therefore desirable that compost be characterized from a physical-chemical point of view (pH, minerals, C/N ratio, etc.) and considers the production of other plants grown on this substrate in order to assess its effectiveness.