scholarly journals Vermicomposting: An Effective Option for Recycling Organic Wastes

2020 ◽  
Author(s):  
Tamanreet Kaur
Keyword(s):  
Low Cost ◽  
Organic Fertilizer ◽  
Organic Wastes ◽  
Growth Promoter ◽  
Phosphate Solubilizing Bacteria ◽  
Suitable Alternative ◽  
Effective Option ◽  
Phosphate Solubilizing ◽  
Water And Soil Pollution

Urbanization and industrialization resulted in rapid increase in volume of solid waste; its management has become one of the biggest problems today. Solid wastes can be disposed off by methods like land filling, incineration, conversion into biogas, recycling, and composting, but its overproduction has led to inappropriate disposal practices such as their indiscriminate and inappropriately timed application to agricultural fields that ultimately leads to water and soil pollution. However, if handled properly, these organic wastes can be used for vermicomposting; it is an effective recycling technology that improves the quality of the products which is disinfected, detoxified, and highly nutritive. It is a low cost, eco-biotechnological process of waste management in which earthworms are used to cooperate with microorganisms in order to convert biodegradable wastes into organic fertilizer. Earthworms excreta (vermicast) is a nutritive organic fertilizer rich in humus, NPK, micronutrients, beneficial soil microbes; nitrogen-fixing, phosphate solubilizing bacteria, actinomycets, and growth hormones auxins, gibberlins and cytokinins, is a suitable alternative to chemical fertilizers, being an excellent growth promoter and protector for crop plants. Thus, vermiculture not only results in management of soild waste but also produces excellent nutrient enriched vermicompost. Vermicompost is beneficial for sustainable organic agriculture and maintaining balanced ecosystem.

scholarly journals PRODUKSI MASAL INOKULUM AZOTOBACTER, AZOSPIRILLUM DAN BAKTERI PELARUT FOSFAT DENGAN MENGGUNAKAN MEDIA ALTERNATIF

2010 ◽  
Vol 12 (2) ◽  
pp. 33
Author(s):  
Richard Gunawan ◽  
Iswandi Anas ◽  
Fahrizal Hazra
Keyword(s):  
Nutrient Broth ◽  
Phosphate Solubilizing Bacteria ◽  
Bacterial Cells ◽  
Microbial Cells ◽  
Nutrient Broth Medium ◽  
Growing Medium ◽  
Materials Used ◽  
Phosphate Solubilizing ◽  
The Cost

<p>Azotobacter, Azospirillum and phosphate solubilizing bacteria are the most common microbial inoculants used as biofertilizer. To have good quality of biofertilizer, the high number of inoculant cells and suitable carriers as well as the method of carrier sterilization are among the most important factors determined the quality of biofertilizer. Related to the number of inoculant cells in carriers, the growing medium used to cultivate the microbial cells play very important role. For mass production of microbial cells, the medium should be able to support fast growth of microbial cells. The price of medium should be reasonably cheap and the materials used in medium should be available easily. The purpose of this study was to obtain a cheap growing medium that can support high number of microbial inoculant cells and the components of the medium should be easyly obtain and the price is not expensive. The study was conducted at the Department of Soil Science and Land Resources, Faculty of Agriculture, Bogor Agricultural University (IPB). The results showed that the medium IPB RI-1 was able to support the growth of 1010 cfu ml-1 Azotobacter, 108 cfu ml-1 Azospirillum and 109 cfu ml-1 Phosphate Solubilizing Bacteria. The number of bacterial cells in Nutrient Broth medium was only 108 cfu ml-1. This means that the IPB RI-1 medium was able to produce 100-fold population of Azotobacter compared to the growth of this bacterium in Nutrient Broth and Phosphate Solubilizing Bacteria was 10-fold higher than population in Nutrient Broth medium. The costs of the IPB RI-1 and IPB RI-2 were much cheaper compared to the cost of Nutrient Broth medium. The cost of medium IPB RI-1 only 3% (IDR 945) and IPB RI-2 about 2% (IDR 690) of the cost of Nutrient Broth medium (IDR 27,752) per liter medium in the year of 2010.<br />Keywords : Alternative media, Azotobacter, Azospirillum, Nutrient Broth, Phosphate Solubilizing Bacteria</p>

scholarly journals Population of phosphate solubilizing bacteria in the liquid organic fertilizer created from palm oil bunches and pineapple rhizome

2019 ◽  
Vol 20 (11) ◽  
Author(s):  
Dermiyati Dermiyati ◽  
Radix Suharjo ◽  
Mareli Telaumbanua ◽  
Yeyen Ilmiasari ◽  
Rully Yosita ◽  
...  
Keyword(s):  
Palm Oil ◽  
Microbial Population ◽  
Organic Fertilizer ◽  
Phosphate Solubilizing Bacteria ◽  
Anaerobic Conditions ◽  
Bacterial Colony ◽  
Facultative Anaerobic ◽  
Phosphate Solubilizing ◽  
Industrial Company ◽  
Very High

Abstract. Dermiyati, Suharjo R, Telaumbanua M, Ilmiasari Y, Yosita R, Annisa RM, Sari AW, Andayani AP, Yulianti DM. 2019. Population of phosphate solubilizing bacteria in the liquid organic fertilizer created from palm oil bunches and pineapple rhizome. Biodiversitas 20: 3315-3321. Palm oil bunches and pineapple rhizomes are abundant in Indonesia, especially in Lampung Province due to widespread agro-industrial company and they are potential to be used as sources for liquid organic fertilizer. This study was aimed to reveal microbial population within liquid organic fertilizer (LF) which was developed from palm oil bunches (PB) and pineapple rhizome (PR) and their role as phosphate solubilizing bacteria (PSB). The capability to solubilize phosphate was recorded from the clear zone area around the bacterial colony which was cultivated on Pikovskaya’s agar medium. The LF was prepared in three kinds of conditions, namely aerobic, anaerobic, and facultative an aerobic. Isolation was performed every 3 days until 24 days after incubations. The results showed that microbial population in the LF from PR was significantly higher than those developed from PB. Totally, 791 bacterial isolates were obtained from the LF; 490 isolates were achieved from PR (153 isolates from aerobic, 188 isolates from facultative anaerobic, 149 from anaerobic conditions) and 301 isolates were collected from PB (96 isolates from aerobic, 112 isolates from facultative anaerobic, 93 isolates from anaerobic conditions). In the case of isolates that were gained from PB, 166 isolates (55.15%) showed capability to degrade phosphate and 135 isolates (44.85%) did not show any capability as PSB. As for isolates obtained from PR, 269 isolates (54.90%) had capability to solubilize phosphate, meanwhile, the other 221 isolates (45.10%) did not show any capability to solubilize phosphate. Among166 isolates of PSB from PB, 60 isolates had very low capability, 55 isolates had low capability, 34 isolates had medium capability, 10 isolates had high capability and only 7 isolates had very high capability. Meanwhile, from 269 isolates of PSB obtained from PR, 135 isolates had very low capability to solubilize phosphate, 84 isolates had low capability to solubilize phosphate, 32 had medium capability to solubilize phosphate, 14 isolates had high capability to solubilize phosphate and 4 isolates produced very high capability as PSB. In total, 11 chosen isolates were selected from LF developed from both PB (7 isolates) and PR (4 isolates). Therefore, palm oil bunches and pineapple rhizomes contained PSB that can be used as LF.

scholarly journals Survival of a Phosphate Solubilizing Microorganism in Ion-Sterile Carriers

2010 ◽  
Vol 12 (3,4) ◽  
pp. 219
Author(s):  
F. Er ◽  
M. Ogut
Keyword(s):  
Population Density ◽  
Liquid Culture ◽  
Rock Phosphate ◽  
Phosphate Solubilization ◽  
Organic Fertilizer ◽  
Population Densities ◽  
Cold Tolerant ◽  
Number Of Microorganisms ◽  
Phosphate Solubilizing

<p>A cold-tolerant phosphate solubilizing bacterium (PSB) was isolated from roots of ryegrass (<em>Lolium perenne</em> L.). Studies involving phosphate solubilization in liquid culture and survival of the PSB in non-sterile zeolite, leonardite, peat, rock phosphate, and an organic fertilizer were performed. The PSB was able to dissolve 163 ppm P with a simultaneous fall in pH (from 7.7 to 5.7) in Pikovskaya’s medium during a ten-day incubation. The number of PSB declined logarithmically in 28 <sup>o</sup>C incubation regardless of the carrier. The rate of decrease in PSB population was less pronounced in zeolite. However, the PSB’s population density increased up to 10<sup>9</sup> cfu g<sup>-1</sup>, and stayed in the range of 10<sup>8</sup> to 10<sup>9</sup> cfu g<sup>-1</sup> in zeolite and rock phosphate after 13-weeks of storage at +4 <sup>o</sup>C. The contaminant microorganisms also grew in the carriers, with population densities ranging between 10<sup>8</sup> to 10<sup>9</sup> cfu g<sup>-1</sup> at week-9. The suppression of the local microorganisms is required to increase the quality of organic fertilizer by the addition of PSB. Zeolite could be a good carrier, due to its large surface area and porosity, which allow high number of microorganisms to occupy.</p>

scholarly journals Bioinoculant production composed by Pseudomonas sp., Serratia sp., and Kosakonia sp., preliminary effect on Allium cepa L., growth at plot scale

2021 ◽  
Vol 26 (1) ◽  
pp. 79-118
Author(s):  
Andrea Blanco-Vargas ◽  
Lina M Rodríguez-Gacha ◽  
Natalia Sánchez-Castro ◽  
Laura Herrera-Carlosama ◽  
Raúl A. Poutou-Piñales ◽  
...  
Keyword(s):  
Low Cost ◽  
Mineral Fertilizer ◽  
Dry Weight ◽  
Phosphate Solubilizing Bacteria ◽  
Pseudomonas Sp ◽  
Yeast Hydrolysate ◽  
Organic Mineral ◽  
Allium Cepa L ◽  
Essential Nutrient ◽  
Phosphate Solubilizing

Phosphorus (P) is an essential nutrient for plant’s development, and its deficiency restricts crop yield. To meet P requirements in agricultural settings, a low-cost culture medium (MT11B) was designed in which a bioinoculant was produced consisting of three bacterial isolates capable of solubilizing P from phosphoric rock (PR). Pseudomonas sp., Serratia sp., and Kosakonia sp. exhibited P solubilization in SMRS1 agar modified with PR (5.0 g L-1), as source of inorganic P. Sowings by isolation were made of the three bacteria on DNAse- and Blood-agar to rule out pathogenicity. At the interaction tests, no inhibition halos were observed; demonstrating there was no antagonism among them, thus they were used to constitute a consortium. Growth curve (12 h) in MT11B demonstrated consortium grew in presence of PR, brewer’s yeast hydrolysate, and glucose at concentrations (2.5 g L-1) fourfold lower than those in SMRS1 (10.0 g L-1); obtaining phosphate solubilizing bacteria of (10.60 ± 0.08/ log10 CFUmL-1 and, at 6 h of culture, acid and alkaline phosphatase enzyme volumetric activities of 2.3 ± 0.8 and (3.80 ± 0.13) UP, respectively. The consortium, releasing phosphorus at a rate of (45.80 ± 5.17) mg L-1 at 6 h of production, was evaluated as bioinoculant in onion plots for five months. Plants receiving a treatment that included 500 mL (10 x 107 CFU mL-1) of bioinoculant plus 100 kg ha-1 of an organic mineral fertilizer exhibited the highest determined response variables (170.1 ± 22.2) mm bulb height, (49.4 ± 6.5) mm bulb diameter, (9.0 ± 1.8) g bulb dry weight, and 15.21 mg bulb-1 total phosphorus (p < 0.05).

scholarly journals Perspectives for Biochar as a vehicle for inoculation of phosphate solubilizing bacteria: a review

2022 ◽  
Vol 11 (1) ◽  
pp. e36211124885
Author(s):  
Rafaela Felix da França ◽  
Erika Valente de Medeiros ◽  
Renata Oliveira Silva ◽  
Ronaldo Anderson da Silva Fausto ◽  
Carlos Alberto Fragoso de Souza ◽  
...  
Keyword(s):  
Field Experiments ◽  
Agricultural Soils ◽  
Low Cost ◽  
Crop Productivity ◽  
Vital Role ◽  
Future Research ◽  
Phosphate Solubilizing Bacteria ◽  
Phosphate Fertilizers ◽  
Phosphate Solubilizing ◽  
Soil Constituents

Phosphorus (P) plays a vital role in many aspects of plant growth and development. The low amount of available P in agricultural soils reduces crop productivity and phosphate fertilizers are often applied. However, due to the high affinity of P for the soil constituents, the availability of this element becomes limited to plants. Thus, alternative, ecological, and low-cost techniques have been studied to improve P acquisition by crops. Microorganisms able to solubilize P, mainly phosphate-solubilizing bacteria (PSB) have stood out, since they offer an approach to overcome P scarcity by their introduction in agricultural systems via inoculants. In this paper, we showed the potential of P-solubilizing microorganisms and their mechanisms of action, the potential of different inoculation vehicles, also highlighting the biochar as a viable biological product for production of inoculants. The combined effects of these factors (PSB and biochar) add several benefits to the soil-plant system. Results from this review demonstrate that biochar amendments have great potential as a vehicle for inoculation of PSB. However, studies of biochar combined with PSB is still incipient. Future research should focus efforts on exploring highly efficient strains, optimizing conditions, and assessing several sources of waste for production of biochar and their efficiency in field experiments.

scholarly journals Isolation of phosphate-solubilizing bacteria from subtropical soils with different fertilization histories

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Juliana Maria Matter ◽  
Silvio César Sampaio ◽  
Danielle Medina Rosa ◽  
Marcelo Bevilacqua Remor ◽  
Kathleen Jeniffer Model ◽  
...  
Keyword(s):  
Chemical Elements ◽  
Organic Fertilizer ◽  
Negative Relationship ◽  
Mineral Fertilizer ◽  
Swine Wastewater ◽  
Phosphate Solubilizing Bacteria ◽  
Colony Forming Units ◽  
Phosphate Solubilizing ◽  
Bioavailability Index ◽  
Inorganic Phosphates

Phosphorus is one of the most abundant chemical elements but has a low bioavailability index. Therefore, microrganisms play a fundamental role in providing insoluble phosphorus to plants. The objective of this study was to evaluate the capacity of bacteria to solubilize inorganic phosphates in soils with different fertilization histories. Soil and rhizosphere samples were collected from a Red Distroferric Latosol, including a control without mineral or organic fertilizer (C), treatment with mineral fertilizer (MF) according to the needs of each crop, and treatment with organic fertilizer [300 m3 ha-1 of swine wastewater (SW)]. The medium containing calcium phytate presented more colony-forming units (CFU) for all fertilization histories, and growth in treatments C and MF was 50% higher than treatment with SW. CFU values in soils treated with SW were lower than those in the other treatments, and the diversity of insoluble phosphate-solubilizing bacteria (PSB) was higher in treatment C. These results indicate a negative relationship between phosphorus concentrations and the number of PSB.

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