Abstract
Microbiological analysis of topsoil and rhizosphere treated with organic manure (Poultry droppings) was carried out. Soil samples were analyzed at three days interval (Day 1, Day 4, Day 7 and Day 10). The total bacterial count recorded for rhizosphere soil treated with poultry droppings (RS:P) had the highest bacterial count ranging between 2.1×106 and 5.7×106 CFU/g. Top soil treated with poultry droppings had total bacterial count ranging between 1.9×106 and 4.9×106 CFU/g. The controls (untreated rhizosphere soil) had a total bacterial count ranging between 2.6×106 and 4.0×106 CFU/g and untreated topsoil had bacterial count ranging between 1.4×106 and 2.4×106 CFU/g. Total fungal count for top soil treated with poultry droppings ranged between 0.2×106 and 0.9×106 CFU/g. Total fungal count for rhizosphere soil treated with poultry droppings ranged between 0.2×106 and 0.3×106 CFU/g. Untreated top soil had total fungal count ranging between 0.1×106 and 0.2×106 CFU/g while untreated rhizosphere soil had a total fungal count ranging between 0.1×106 and 0.2×106 CFU/g. Bacterial isolates identified with their percentage frequency of occurrence were Bacillus sp (16.8), Enterococus sp (8.4), Clostridium sp (4.0), Staphylococcus sp (8.0) Pseudomonas sp (15.6), Listeria sp (12.0), Micrococcus sp (14.0), Serratia sp (4.8) and Streptococcus sp (7.2). Fungal isolates identified with their percentage frequency of occurrence were Rhizosphere sp (26.7%), Penicillium sp (22.5%), Aspergillus sp (21.1%), Mucor sp (19.7%) and lastly Cladosporium sp (9.8%). Metabolites secreted by the root system act as chemical signal attracting high population of microorganisms. The application of organic manure to the soil enhanced the microbial population of the soil, hence the need to apply organic manure to soil to enhance agricultural sustainably.
Highlights
Soil has been considered as the region on the crust of the earth where biologist and geologist find interest, the platform which provides a habitation for to plant, animals and microorganisms [1]
Total bacterial count for soil without poultry dung ranged between 1.4×106 to 2.4×106 CFU/g, while total bacterial count for rhizosphere ranged between 2.6×106 to 4.0×106 CFU/g
Total Fungal Count Total fungal counts for soil amended with poultry sample
Summary
Soil has been considered as the region on the crust of the earth where biologist and geologist find interest, the platform which provides a habitation for to plant, animals and microorganisms [1]. Soil is compost of microbial life (fungi, bacteria, viruses and protozoa) as well as macroscopic life such as mites, earthworm, nematodes and insects and plant root system. Environmental factors influence the number and type of microorganisms present in the soil. Such factors include; availability of nutrients, moisture content, pH, aeration, temperature etc. Soil fungi may exist in mycorrhizal association with plant roots or may occur as free-living organisms. Fungi are not commonly found below 30cm soil depth. They are highly populated in aerated and acidic soil [2]. Most fungi grow and carry out metabolic activities under favourable environmental conditions which include; good aeration, good moisture level and presence of degradable substrates [3,4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
