Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria
This research studied the effects of pesticide application on the growth of soil nitrifying bacteria. Nitrosomonas sp. was isolated from the Soil samples gotten from five different locations within the University of Benin, Benin City and cultured using Winogradsky medium. The bacterial isolate was...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2018-04-01
|
| Series: | Journal of Applied Sciences and Environmental Management |
| Subjects: | |
| Online Access: | https://www.ajol.info/index.php/jasem/article/view/169348 |
| _version_ | 1797227772449390592 |
|---|---|
| author | U Udochukwu AO Dave-Omoregie HC Akaluzia |
| author_facet | U Udochukwu AO Dave-Omoregie HC Akaluzia |
| author_sort | U Udochukwu |
| collection | DOAJ |
| description |
This research studied the effects of pesticide application on the growth of soil nitrifying bacteria. Nitrosomonas sp. was isolated from the Soil samples gotten from five different locations within the University of Benin, Benin City and cultured using Winogradsky medium. The bacterial isolate was characterized and identified based on its cultural, morphological and biochemical characteristics. After 4 to 5 days of growth, Nitrosomonas Counts obtained from Winogradsky medium ranged from 4.8×103 to 9.2×103cfu/g. There was an increase in bacteria growth at lower pesticide concentration which began to decrease as the pesticide concentration increased with time. The percentage nitrite accumulation gradually decreased with time, the LC50 values were higher than EC50 values which shows that the bacteria could survive and grow at lower pesticide concentrations but were completely inhibited at higher pesticide concentrations. It is therefore very important to examine pesticides so as to determine its toxicity to soil bacteria before application.
|
| first_indexed | 2024-04-24T14:46:07Z |
| format | Article |
| id | doaj.art-754ef818a6c248318bb4fa191695e760 |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:46:07Z |
| publishDate | 2018-04-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-754ef818a6c248318bb4fa191695e7602024-04-02T19:55:51ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992018-04-0122310.4314/jasem.v22i3.2Effects of Pesticide Application on the Growth of Soil Nitrifying BacteriaU UdochukwuAO Dave-OmoregieHC Akaluzia This research studied the effects of pesticide application on the growth of soil nitrifying bacteria. Nitrosomonas sp. was isolated from the Soil samples gotten from five different locations within the University of Benin, Benin City and cultured using Winogradsky medium. The bacterial isolate was characterized and identified based on its cultural, morphological and biochemical characteristics. After 4 to 5 days of growth, Nitrosomonas Counts obtained from Winogradsky medium ranged from 4.8×103 to 9.2×103cfu/g. There was an increase in bacteria growth at lower pesticide concentration which began to decrease as the pesticide concentration increased with time. The percentage nitrite accumulation gradually decreased with time, the LC50 values were higher than EC50 values which shows that the bacteria could survive and grow at lower pesticide concentrations but were completely inhibited at higher pesticide concentrations. It is therefore very important to examine pesticides so as to determine its toxicity to soil bacteria before application. https://www.ajol.info/index.php/jasem/article/view/169348Pesticidenitrosomonas sp.winogradsky mediumnitrite accumulation. |
| spellingShingle | U Udochukwu AO Dave-Omoregie HC Akaluzia Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria Journal of Applied Sciences and Environmental Management Pesticide nitrosomonas sp. winogradsky medium nitrite accumulation. |
| title | Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria |
| title_full | Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria |
| title_fullStr | Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria |
| title_full_unstemmed | Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria |
| title_short | Effects of Pesticide Application on the Growth of Soil Nitrifying Bacteria |
| title_sort | effects of pesticide application on the growth of soil nitrifying bacteria |
| topic | Pesticide nitrosomonas sp. winogradsky medium nitrite accumulation. |
| url | https://www.ajol.info/index.php/jasem/article/view/169348 |
| work_keys_str_mv | AT uudochukwu effectsofpesticideapplicationonthegrowthofsoilnitrifyingbacteria AT aodaveomoregie effectsofpesticideapplicationonthegrowthofsoilnitrifyingbacteria AT hcakaluzia effectsofpesticideapplicationonthegrowthofsoilnitrifyingbacteria |