Potassium solubilization

These isolates were screened, in vitro, according to their capacities to produce plant growth promoting substance i.e. IAA, phosphate, potassium solubilization, chitinase activities and hydrogen cyanide. Results indicated that 36 bacterial isolates showed IAA production, 25 HCN production, 57 chitinase activities, 39 phosphate and 105 potassium solubilizers.

8p schindler 30-12-2021 9 0   Download

This strain also showed the lowest of doubling time. Ps. otitidis SE8 and OL2 had higher activity to solubilize phosphorus than other tested strains. Bacterial strain SE8 also gave a considerable amount of soluble potassium as compared with other strains being 80.7 ppm.

10p schindler 30-12-2021 16 0   Download

The new research work was conducted at Instructional Cum Research Farm, College of Agriculture, Department of Agronomy, IGKV, Raipur during rabi season of 2019-20. The experiment was assessed with three replication in Randomized Block Design. The experiment consist of 11 different treatments. Fieldpea as a test crop and variety was Indira matar-1. Recommended dose of nitrogen, potassium and sulphur @ 20 kg ha-1 and Rhizobium culture applied common to all treatments.

8p trinhthamhodang11 27-04-2021 14 1   Download

Pot culture experiment was conducted to evaluate the effect of some promising microbial isolates for their ability for potash solubilization in soil as well as to see their effects on growth and yield attributes in brinjal.

7p cothumenhmong9 18-01-2021 9 2   Download

The efficacy of different microbial strains for potassium dissolution from insoluble soil mineral (mica) were evaluated in vitro (both plate and broth media assays). Nine microbial strains and 0.1% of chemical source (mica) in three replications were used. Colony and halo diameters were measured after incubating the plates for 72h in incubator.

8p cothumenhmong9 04-01-2021 10 1   Download

Interaction between soil microbes and minerals play a major role in environmental cycling processes, which leads to the mobilization of nutrients from soil components into available forms for biological uptake which enhances crop growth and yield. In the present study four (4) potassium solubilizing bacteria (KSB), eight (8) zinc solubilizing bacteria (ZnSB) and two (2) zinc solubilizing fungi (ZnSF) isolated from Rice, Maize, Cotton and Sorghum rhizosphere soil collected from Student and College farm Rajendranagar PJTSAU Hyderabad.

11p nguathienthan8 20-10-2020 15 1   Download

In this present study, different Rhizobial and Pseudomonas strains from different locations were collected and evaluated for their potential PGP activity. Among ten Rhizobial cultures GNR1 recorded the highest P solubilization zone (24.3 mm) conversely, P solubilization is highest in Pseudomonas isolates. Five cultures of Rhizobia and six cultures of Pseudomonas were able to solubilize potassium. The solubilisation zone is ranging from a maximum of 11.6 to a minimum of 8.3 mm.

10p chauchaungayxua8 03-10-2020 9 1   Download

A field experiment was conducted in sandy clay loam soil of S.V. Agricultural College Farm, Tirupati with three levels of nitrogen viz., 75, 100, 125 % RDN and five biofertilizers viz., Azospirillum, phosphorus solubilizing bacteria (PSB), potassium solubilizing bacteria (KSB), zinc solubilizing bacteria (ZnS) and combined application of Azospirillum + PSB + KSB + ZnS each applied @ 5 kg ha-1 in randomized block design with factorial conceptin kharif maize.

5p kethamoi7 26-08-2020 21 2   Download

Microbial isolates were collected from rhizospheric soil of Meerut-Muzaffarnagar district of western Uttar Pradesh to identify the potassium solubilizing efficiency of different soil microbes. A total of thirty-eight potassium solubilizing microbes were identified and isolated on Aleksandrow Agar media. It was found that thirty-five of them were bacterial isolates and three were fungal isolates. They were further characterized based on morphological and biochemical characteristics.

14p nguaconbaynhay7 15-08-2020 21 2   Download

Attachment of soil bacteria to plant cells is supposedly the very early step required in plant–microbe interactions. Attachment also is an initial step for the formation of microbial biofilms on plant roots. For the rhizobia–legume symbiosis, various mechanisms and diverse surface molecules of both partners have been proposed to mediate in this process. A biofilm is an aggregate of microorganisms in which cells are stuck to each other and/or to biotic/abiotic surface.

11p angicungduoc6 20-07-2020 16 1   Download

Soil potassium supplementation relies heavily on the use of chemical fertilizer, which has a considerable negative impact on the environment. There is a growing need to turn back to nature or sustainable agents that promote evergreen agriculture. Among such natural bio-agents, the potassium solubilizing bacteria (KSB), which solubilize fixed forms of potassium (K) and increase growth, yield and nutrient uptake of wheat plant and hence Soil fertility can be restored effectively through adopting concept of integrated soil fertility management (ISFM).

8p angicungduoc6 20-07-2020 11 2   Download

A field experiment was performed in the agriculture field of Departmernt of Horticulture in SHUATS, Allahabad to study the effect of bacterial and fungal biofertilizers on vegetative and yield attributing parameters of Cauliflower (Brassica oleracea botrytis) plant under citrus orchard. Bacterial biofertilizers included phosphorus solubilising microbes (bacteria and fungus) PSB1, PSF1 and potassium solubilising microbes KSB2 and KSF2 which were isolated from the rhizospheric region of vegetable crops. The strains were screened by employing qualitative plating techniques.

20p trinhthamhodang6 09-07-2020 19 1   Download

Five potassium solubilizing microorganisms were isolated from the arid soil of Jodhpur, India. Among them two fungal isolates RCKF7 followed by RCKF5 showed higher dissolution capacity towards feldspar, resulting in the release of more potassium compared to the others. Based on morphological characters and sequencing of ITS1–5.8S–ITS2 region the strains were identified as Fomitopsis meliae RCKF7 and Aspergillus tubingensis RCKF5.

11p kethamoi6 29-06-2020 7 1   Download

A microbial consortium consisting of Azospirillum, phosphate solubilizing bacterium (Pseudomonas striata), potassium solubilizing bacterium, PGPR (plant growth promoting rhizobacterium) strain (Pseudomonas sp. B15) and lactic acid bacterium (Leuconostoc mesenteroides) with antifungal activities was prepared. It effect on the growth and biomass of different vegetable seedlings raised in nursery protrays was evaluated in a commercial farmer’s nursery. The microbial inoculation resulted in improved plant height and biomass. The per cent increase in plant height and girth of tomato was 57.

4p nguaconbaynhay6 24-06-2020 12 0   Download

Laboratory experiments were conducted to isolate screen and select the efficient P-solubilizing fungal isolates from maize rhizosphere in the districts of Northern Karnataka. 21 P-solubilizing fungal isolates were obtained from the soil samples and were screened for phosphorus solubilizing ability on Pikovskaya’s agar and broth M-10(1) showed highest phosphorus solubilizing activity. Five efficient isolates were selected and assessed for other functional activities such as zinc and potassium solubilization, phytohormone production (IAA and GA3) and cellulolytic activity.

11p nguaconbaynhay5 16-05-2020 13 1   Download

Municipal solid waste compost (MSWC), rock phosphate (RP) and phosphate solubilizing bacteria (PSB) @ 20 ml pot-1 were applied as soil amendment to investigate its effect on soil, nutrients uptake and yield in wheat (Triticum aestivum, L.). Maximum up take of potassium (K) mg kg-1 , Phosphorous (P) mg kg-1 and Nitrogen (N) mg kg-1 , Iron (Fe) mg kg-1 , Copper (Cu) mg kg -1 , Manganese (Mn) mg kg-1 and Zinc (Zn) mg kg-1 was observed with the application of RP @ 1000 kg ha-1 + MSWC @ 20 t ha-1 .

7p chauchaungayxua5 08-05-2020 10 0   Download

To study the effect of different levels (0, 2, 4 and 6 t ha-1 ) of wheat and maize crop residues (CR), potassium (K) doses [50, 100, 150% recommended K and 50% RDK+K solubilising bacteria (KSB)] and a combination of CR+K doses on maize and wheat crop yield and KSB population, a field experiment was conducted during 2014-15 and 2015-16, following split plot design.

12p chauchaungayxua5 05-05-2020 7 1   Download

Indian mustard (Brassica juncea L.) occupies third place among the various oilseed crops due to its considerable economic and nutritional value. Many naturally-occurring rhizosphere bacteria colonize its roots and benefit plants by enhancing the availability of nutrients. In this study, seventy eight bacterial isolates were obtained from the rhizosphere of mustard and screened for beneficial characteristics. Thirty two rhizobacterial isolates produced indole acetic acid ranging from 1.08 to 19.95 μg/ml.

12p angicungduoc4 26-04-2020 13 1   Download

Environment pollution and the food shortage are the biggest problem faced by human beings. As the world population increase food requirement also increases. To fulfil the requirement of food the farmers are dependent on the chemical fertilizers which are harmful for environment. Thus the alternate to these problems are the use of biofertilizers.

13p kethamoi4 16-04-2020 15 0   Download

Aim of our research study to find out efficient strains of K-solubilizing bacteria from potassium solubilizing isolates under in-vitro condition and different source of potassium minerals. The morpho-biochemical characterization and mica-K solubilization capacity of K-solubilizers bacterial in-vitro was done. Effect of K-solubilizing bacterial isolates on pH, EC soluble K and residual silica at 7, 14, 21 and 28 days after incubation in broth containing mica was studied.

10p quenchua4 06-04-2020 24 0   Download