scholarly journals THE INFLUENCE OF DOLOMITE GIVING ON INDIGENOUS BACTERIA NITROGEN INHIBITOR IN TIDAL SOIL HAS BEEN MANAGE FOR OVER 30 YEARS

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Rahmawati Ridwan ◽  
Dedik Budianta ◽  
Hary Widjajanti
Keyword(s):  
Soil Ph ◽  
Bacterial Population ◽  
Total Population ◽  
Natural Sciences ◽  
Ph Measurement ◽  
Nitrogen Fixing ◽  
Lime Treatment ◽  
Nitrogen Fixing Bacteria ◽  
Indigenous Bacteria

The study was conducted to determine the effect of land typology and lime on the population of indigenous nitrogen-fixing bacteria and soil pH, and to analyze the effect of soil typology interaction and lime on the population of indigenous nitrogen-fixing bacteria and soil pH. Sampling of soil in tidal land of Mulya Sari and Banyu Urip Village of Banyuasin Regency, South Sumatera. Then the sample was studied at the Laboratory of Microbiology, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Sriwijaya, Inderalaya. During January-May 2017. Based on the results of the study known the soil typology of the total population of nitrogen-fixing bacteria, the highest population of nitrogen inhibitor bacteria in the second week of soil typology D was 6.0x107 and the highest pH of 5.18 in typology B on week Third, the lime treatment that affected the population of indigenous nitrogen-fixing bacteria, obtained the population of bacteria as much as 9.3x105 in the second week and the highest soil pH 4.93 in the second week, while the results of the interaction between soil typology and lime treatment only affect the population of bacterial inhibitor Indigenous nitrogen, with bacterial population of 3.5x107 in soil typology D in the second week, but this interaction did not significantly affect soil pH, with the highest pH measurement of 5.33 on the soil typology D.Keywords: nitrogen-fixing bacteria, tidal land, lime treatment

scholarly journals PEMANFAATAN BAKTERI INDIGENUS SEBAGAI EFFECTIVE MICROORGANISM (EM) UNTUK MEMPERCEPAT LAJU DEKOMPOSISI SAMPAH ORGANIK

2019 ◽  
Vol 2 (3) ◽  
pp. 53
Author(s):  
Hastari Nastiti
Keyword(s):  
Sugar Cane ◽  
Organic Waste ◽  
Environmental Problems ◽  
Waste Recycling ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Indigenous Bacteria ◽  
Degrading Bacteria ◽  
Effective Microorganism ◽  
Brown Color

Recycling of organic waste is important because it can reduce environmental problems. Composting is the alternative method for waste recycling, but naturally, the processes always waste a time. EM technology is proven to decrease the composting time. This research conducts the isolation for 3 kinds of indigenous bacteria from compost that used for liquid EM production. The yield of isolation process are 3.6x109 cfu/g phosphate degrading bacteria, 5.6x109 cfu/g cellulose degrading bacteria and       2.7x109 cfu/g nitrogen fixing bacteria. The medium are used for this study to make EM contain of aquadest, 25% sugar cane fresh liquid and 2% Nitrogen-Phosphor-Potassium mixing fertilizer. The final EM product contain of 8.2x108 cfu/g mixing bacteria. The solid starter production with liquid EM addition needs 14 days. The final solid starter has brown color and smell like soil, roughly texture but break up, 7.8 for pH average and 33.8oC for temperature average. In other hand, fresh compost production need 22 days. Further more, in final process, the fresh compost has black-brown color and smell like soil, smoothly texture and crumbs, humidity decreasing, 7.4 for pH average and  44.5oC for temperature average.

Distribution of Azotobacter in Eastern Canadian soils and in association with plant rhizospheres

1988 ◽  
Vol 34 (6) ◽  
pp. 815-817 ◽  
Author(s):  
Manoj M. Kole ◽  
William J. Page ◽  
Illimar Altosaar
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Ph ◽  
Soil Type ◽  
Soil Moisture Content ◽  
Azotobacter Chroococcum ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Canadian Soils

Aerobic nitrogen-fixing bacteria were readily isolated from Eastern Canadian soils. The majority (89%) of these soils were found to contain Azotobacter chroococcum and other members of this family. These bacteria ranged from 1 × 102 to 2.5 × 104 bacteria per gram soil. The soil type had relatively little effect on the population of these bacteria provided a soil moisture content of 10 to 18% and a soil pH of 6.5 to 8.0 was maintained. The presence of wheat or common lawn grasses did not promote better establishment of Azotobacteraceae. However, slightly larger populations of these bacteria were associated with corn, oat, and soybean rhizospheres.

scholarly journals KARAKTERISTIK DASAR POPULASI BAKTERI PENAMBAT NITROGEN NON-SIMBIOTIK PADA LAHAN GAMBUT BEKAS KEBAKARAN

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Menik Desmina ◽  
Wiwik Ekyastuti
Keyword(s):  
Population Density ◽  
Plant Growth ◽  
Bacterial Population ◽  
Soil Sampling ◽  
Systematic Sampling ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Plate Method ◽  
Yeast Extract Mannitol ◽  
Basic Characteristics

Nitrogen is an macroessential nutrient for plant growth. Insufficient nitrogen or nitrogen elements, the plant will be upnormal. The availability of nitrogen can be obtained through one of the microbes in the soil, namely nitrogen fixing bacteria (NFB) that is capable of fixing free nitrogen, including symbiotic and non-symbiotic. This study aimd to describe the density of population and the basic characteristics of NFB in burnt peatland Kuala Dua village. The method was in soil sampling with systematic sampling. Bacteria isolation using yeast extract mannitol agar (YEMA) media by using the pour plate method. The density of bacterial population was calculated by count pour method. The result showed tha the higest population density in peat from at distance of 80 m from the edge of the trench with a depth of 0-20 cm as much (52.107cfu/g soil), while a low population density was found at a distance of 20 m from the edge of a trench with a depth of 20-50 cm by much (15,5.107cfu/g soil). The bacterial population in burnt peatland fall was categorited the high. there potential can developed to support the restoration of peatland ecosystems originating from burnt peatlands.Keywords: charakteristics, burnt peatlands, nitrogen fixing bacteria, restoration.

scholarly journals Cowpea symbiotic efficiency, pH and aluminum tolerance in nitrogen-fixing bacteria

2014 ◽  
Vol 71 (3) ◽  
pp. 171-180 ◽  
Author(s):  
Bruno Lima Soares ◽  
Paulo Avelar Ademar Ferreira ◽  
Silvia Maria de Oliveira-Longatti ◽  
Leandro Marciano Marra ◽  
Marcia Rufini ◽  
...  
Keyword(s):  
Aluminum Tolerance ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Symbiotic Efficiency

scholarly journals Genomic characterization and computational phenotyping of nitrogen-fixing bacteria isolated from Colombian sugarcane fields

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Luz K. Medina-Cordoba ◽  
Aroon T. Chande ◽  
Lavanya Rishishwar ◽  
Leonard W. Mayer ◽  
Lina C. Valderrama-Aguirre ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Nitrogen Fixation ◽  
Plant Growth ◽  
Phosphate Solubilization ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Promising Tool ◽  
A Genome ◽  
Plant Growth Promoting ◽  
Growth Promoting

AbstractPrevious studies have shown the sugarcane microbiome harbors diverse plant growth promoting microorganisms, including nitrogen-fixing bacteria (diazotrophs), which can serve as biofertilizers. The genomes of 22 diazotrophs from Colombian sugarcane fields were sequenced to investigate potential biofertilizers. A genome-enabled computational phenotyping approach was developed to prioritize sugarcane associated diazotrophs according to their potential as biofertilizers. This method selects isolates that have potential for nitrogen fixation and other plant growth promoting (PGP) phenotypes while showing low risk for virulence and antibiotic resistance. Intact nitrogenase (nif) genes and operons were found in 18 of the isolates. Isolates also encode phosphate solubilization and siderophore production operons, and other PGP genes. The majority of sugarcane isolates showed uniformly low predicted virulence and antibiotic resistance compared to clinical isolates. Six strains with the highest overall genotype scores were experimentally evaluated for nitrogen fixation, phosphate solubilization, and the production of siderophores, gibberellic acid, and indole acetic acid. Results from the biochemical assays were consistent and validated computational phenotype predictions. A genotypic and phenotypic threshold was observed that separated strains by their potential for PGP versus predicted pathogenicity. Our results indicate that computational phenotyping is a promising tool for the assessment of bacteria detected in agricultural ecosystems.

scholarly journals Effect of Abandonment on Diversity and Abundance of Free-Living Nitrogen-Fixing Bacteria and Total Bacteria in the Cropland Soils of Hulun Buir, Inner Mongolia

PLoS ONE ◽  
2014 ◽  
Vol 9 (9) ◽  
pp. e106714 ◽  
Author(s):  
Huhe ◽  
Shinchilelt Borjigin ◽  
Yunxiang Cheng ◽  
Nobukiko Nomura ◽  
Toshiaki Nakajima ◽  
...  
Keyword(s):  
Inner Mongolia ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Free Living ◽  
Total Bacteria
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