Organic farming practice improves soil microbial properties under soybean production
Autori
Marinković, JelenaMiljaković, Dragana
Tintor, Branislava
Cvijanović, Gorica
Đorđević, Vuk
Đukić, Vojin
Vasiljević, Marjana
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
To minimize negative impacts of intensive agricultural practice, organic farming has been
proposed as a sustainable agricultural practice with the main principles of the ecological
cycle and biodiversity. This concept heavily relies on an active soil microbial community
to break down organic matter into plant available nutrients. The main objective of the
study was to identify whether significant differences in microbial properties in soils under
soybean organic and conventional farming management exist. The study included 95
samples of soil under certified organic soybean production and 48 samples in conventional
production system. Soil samples were collected form soybean rizosphere, in the period of
soybean full bloom. The abundance of the examined microbial communities was assessed
by an indirect dilution spread-plating method on an appropriate nutritive media.
Dehydrogenase and β-glucosidase activity were measured spectrophotometrically. The
variables were analyzed using... two-way analysis of variance (ANOVA), followed by mean
separation according to Tukey’s test at the P<0.05 level of probability. Soils under organic
farming belong to the class of humic soils (3.5%), while soils samples in conventional
fields were characterized by the lower humus content (2.1%). The results of the study
showed significant increase in the abundance of Azotobacter spp., free N-fixing bacteria,
actinomycetes and dehydrogenase and β-glucosidase activity in soils under organic
management. The two different soil management systems did not significantly affect the
total bacterial population, ammonifiers and fungal abundance. The abundance of
Azotobacter spp., free N-fixing bacteria and actinomycetes were on average 196%, 87%
and 60% higher, respectively, in organically farmed soils. Dehydrogenase activity was on
average 140% greater, whereas the β-glucosidase activity was increased by 41% under
organic management. As no synthetic nitrogen fertilizers are allowed in organic farming,
these systems heavily depend on green manure, nitrogen fixation and organic inputs.
Increased organic matter content in organic farming positively influences microbial
growth, biomass and enzymatic activity. The present study underlying management
practices linkage on most investigated microbial indicators and confirms the positive
correlation with soil organic material turnover
Ključne reči:
dehydrogenase / β-glucosidase / microbial abundance / organic farming / conventional farming / soybeanIzvor:
Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021, 2021, 27-Izdavač:
- Belgrade : Serbian Society of Soil Science
Kolekcije
Institucija/grupa
FiVeRTY - CONF AU - Marinković, Jelena AU - Miljaković, Dragana AU - Tintor, Branislava AU - Cvijanović, Gorica AU - Đorđević, Vuk AU - Đukić, Vojin AU - Vasiljević, Marjana PY - 2021 UR - http://fiver.ifvcns.rs/handle/123456789/2522 AB - To minimize negative impacts of intensive agricultural practice, organic farming has been proposed as a sustainable agricultural practice with the main principles of the ecological cycle and biodiversity. This concept heavily relies on an active soil microbial community to break down organic matter into plant available nutrients. The main objective of the study was to identify whether significant differences in microbial properties in soils under soybean organic and conventional farming management exist. The study included 95 samples of soil under certified organic soybean production and 48 samples in conventional production system. Soil samples were collected form soybean rizosphere, in the period of soybean full bloom. The abundance of the examined microbial communities was assessed by an indirect dilution spread-plating method on an appropriate nutritive media. Dehydrogenase and β-glucosidase activity were measured spectrophotometrically. The variables were analyzed using two-way analysis of variance (ANOVA), followed by mean separation according to Tukey’s test at the P<0.05 level of probability. Soils under organic farming belong to the class of humic soils (3.5%), while soils samples in conventional fields were characterized by the lower humus content (2.1%). The results of the study showed significant increase in the abundance of Azotobacter spp., free N-fixing bacteria, actinomycetes and dehydrogenase and β-glucosidase activity in soils under organic management. The two different soil management systems did not significantly affect the total bacterial population, ammonifiers and fungal abundance. The abundance of Azotobacter spp., free N-fixing bacteria and actinomycetes were on average 196%, 87% and 60% higher, respectively, in organically farmed soils. Dehydrogenase activity was on average 140% greater, whereas the β-glucosidase activity was increased by 41% under organic management. As no synthetic nitrogen fertilizers are allowed in organic farming, these systems heavily depend on green manure, nitrogen fixation and organic inputs. Increased organic matter content in organic farming positively influences microbial growth, biomass and enzymatic activity. The present study underlying management practices linkage on most investigated microbial indicators and confirms the positive correlation with soil organic material turnover PB - Belgrade : Serbian Society of Soil Science C3 - Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021 T1 - Organic farming practice improves soil microbial properties under soybean production SP - 27 UR - https://hdl.handle.net/21.15107/rcub_fiver_2522 ER -
@conference{ author = "Marinković, Jelena and Miljaković, Dragana and Tintor, Branislava and Cvijanović, Gorica and Đorđević, Vuk and Đukić, Vojin and Vasiljević, Marjana", year = "2021", abstract = "To minimize negative impacts of intensive agricultural practice, organic farming has been proposed as a sustainable agricultural practice with the main principles of the ecological cycle and biodiversity. This concept heavily relies on an active soil microbial community to break down organic matter into plant available nutrients. The main objective of the study was to identify whether significant differences in microbial properties in soils under soybean organic and conventional farming management exist. The study included 95 samples of soil under certified organic soybean production and 48 samples in conventional production system. Soil samples were collected form soybean rizosphere, in the period of soybean full bloom. The abundance of the examined microbial communities was assessed by an indirect dilution spread-plating method on an appropriate nutritive media. Dehydrogenase and β-glucosidase activity were measured spectrophotometrically. The variables were analyzed using two-way analysis of variance (ANOVA), followed by mean separation according to Tukey’s test at the P<0.05 level of probability. Soils under organic farming belong to the class of humic soils (3.5%), while soils samples in conventional fields were characterized by the lower humus content (2.1%). The results of the study showed significant increase in the abundance of Azotobacter spp., free N-fixing bacteria, actinomycetes and dehydrogenase and β-glucosidase activity in soils under organic management. The two different soil management systems did not significantly affect the total bacterial population, ammonifiers and fungal abundance. The abundance of Azotobacter spp., free N-fixing bacteria and actinomycetes were on average 196%, 87% and 60% higher, respectively, in organically farmed soils. Dehydrogenase activity was on average 140% greater, whereas the β-glucosidase activity was increased by 41% under organic management. As no synthetic nitrogen fertilizers are allowed in organic farming, these systems heavily depend on green manure, nitrogen fixation and organic inputs. Increased organic matter content in organic farming positively influences microbial growth, biomass and enzymatic activity. The present study underlying management practices linkage on most investigated microbial indicators and confirms the positive correlation with soil organic material turnover", publisher = "Belgrade : Serbian Society of Soil Science", journal = "Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021", title = "Organic farming practice improves soil microbial properties under soybean production", pages = "27", url = "https://hdl.handle.net/21.15107/rcub_fiver_2522" }
Marinković, J., Miljaković, D., Tintor, B., Cvijanović, G., Đorđević, V., Đukić, V.,& Vasiljević, M.. (2021). Organic farming practice improves soil microbial properties under soybean production. in Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021 Belgrade : Serbian Society of Soil Science., 27. https://hdl.handle.net/21.15107/rcub_fiver_2522
Marinković J, Miljaković D, Tintor B, Cvijanović G, Đorđević V, Đukić V, Vasiljević M. Organic farming practice improves soil microbial properties under soybean production. in Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021. 2021;:27. https://hdl.handle.net/21.15107/rcub_fiver_2522 .
Marinković, Jelena, Miljaković, Dragana, Tintor, Branislava, Cvijanović, Gorica, Đorđević, Vuk, Đukić, Vojin, Vasiljević, Marjana, "Organic farming practice improves soil microbial properties under soybean production" in Book of Abstracts, 3rd International and 15th National Congress "Soils for Future Under Global Challenges", Sokobanja, Serbia, 21-24 September 2021 (2021):27, https://hdl.handle.net/21.15107/rcub_fiver_2522 .