scholarly journals SORGHUM GENOTYPES RESPONSE TO INOCULATION WITH PHOSPHATE SOLUBILIZING BACTERIA

2020 ◽  
Vol 19 ◽  
pp. 14
Author(s):  
BIANCA BRAZ MATTOS ◽  
IVANILDO EVÓDIO MARRIEL ◽  
SYLVIA MORAIS DE SOUSA ◽  
UBIRACI GOMES DE PAULA LANA ◽  
ROBERT EUGENE SCHAFFERT ◽  
...  
Keyword(s):  
Field Experiments ◽  
Phosphate Solubilizing Bacteria ◽  
Promising Alternative ◽  
P Content ◽  
Synthetic Fertilizers ◽  
Sorghum Production ◽  
Sorghum Genotypes ◽  
Phosphate Solubilizing ◽  
Microbial Strain ◽  
P Supply

Sorghum bicolor adapts to phosphorus (P) deficient soils through mechanisms that contribute to its absorption and solubilization, including the association with microorganisms. The direct application of rock phosphate (RP) and the inoculation with phosphate solubilizing bacteria (PSB) is a sustainable alternative for P supply to the crops. The aim of this study was to evaluate the effect of PSB inoculation of two sorghum genotypes with different P responses (BR007 - efficient and responsive and SC283 - efficient and non-responsive), cultivated in soil fertilized with RP and triple superphosphate (TSP), in greenhouse and field experiments. The sorghum genotypes were inoculated separately with the Bacillus strains that are efficient in P solubilization, B116 and B70, and cultivated under different P fertilization sources (TSP, RP, ½TSP + ½RP). The results suggest that the inoculation response was dependent on sorghum genotype, P source and microbial strain. Inoculation of the genotype BR007 significantly increased root biomass and grain P content under greenhouse conditions, as well as yield and grain P content in field experiments, but no effect was observed on genotype SC283. The use of PSB as bioinoculants, in combination with RP, is a promising alternative to reduce the use of synthetic fertilizers, contributing to the sustainable sorghum production.

scholarly journals Isolasi Rhizobakteri dan Pengaruh Aplikasinya dengan Pupuk N-P terhadap Mutu Benih dan Pertumbuhan Bibit Tetua Betina Jagung

2018 ◽  
Vol 45 (3) ◽  
pp. 255
Author(s):  
Pitri Ratna Asih ◽  
Memen Surahman ◽  
Dan Giyanto
Keyword(s):  
Field Experiments ◽  
Seed Quality ◽  
Female Parent ◽  
Dry Weight ◽  
Hybrid Seed ◽  
Phosphate Solubilizing Bacteria ◽  
Isolation And Identification ◽  
Seed Field ◽  
P Fertilizer ◽  
Phosphate Solubilizing

Increased productivity of maize can be done with the use of high quality seeds from improved varieties such as hybrid seed. The objectives of this study were Increasing productivity of maize female parent is important in order to reduce the price of hybrid seed. The objectives of this study were to determine the nitrogen fixing bacteria compatible with phosphate solubilizing bacteria (PSB), and using those bacteria to increase physiological seed quality and seedling growth of maize female parent. The research consisted of laboratory and field experiments. Laboratory experiment for the isolation and identification of rhizobacteria resulted in 25 Azotobacter and 29 Actinomycetes non-pathogenic isolates capable of fixing nitrogen and PSB selected for compatibility tests were AB3, B28, P12, P14, P24, and P31. The compatibility test showed 25 pairs of BPF with Azotobacter and 16 pairs of BPF with Actinomycetes were mutually compatible. The BPF pair with Azotobacter or Actinomycetes P24-AzL7, P24-AzL9, B28-AcCKB4, P24-AcCKB9, P24-AcCKB20, and P24-AcCKW5 were able to increase the vigor index of hybrid maize female parent seed. Field experiment was arranged in a split plot design with three replications. The main plot was dosage of N-P fertilizer (0%, 25%, 50%, 75%, and 100% of recommendation dosage), and the subplot was 12 rhizobacteria treatments selected from 25 compatible pairs of BPF with Azotobacter and 16 pairs of BPF with Actinomycetes and 1 control. The application of compatible pairs of bacteria had a significant effect on plant height, the number of leaves at 3 and 4 weeks after planting and plant dry weight. However, the best treatment i.e. B28-AcCKB4 was not significantly different with the nutrient broth treatment (as control).<br /><br /><br />

Effect of integrated nutrient management on productivity, soil fertility and economics of blackgram (Vigna mungo) varieties under rainfed condition

2015 ◽  
Author(s):  
B. S. Meena ◽  
Baldev Ram
Keyword(s):  
Seed Yield ◽  
Management Practices ◽  
Field Experiments ◽  
Nutrient Management ◽  
Cost Ratio ◽  
Phosphate Solubilizing Bacteria ◽  
Net Return ◽  
Benefit Cost Ratio ◽  
Phosphate Solubilizing ◽  
Benefit Cost

Field experiments were conducted during kharif seasons on 7th and 10th July of 2010 and 2011 respectively to find out suitable nutrient management practices for blackgram varieties at farmer's field at Humerhedi, Kota district. The treatments consisted of 5 blackgram varieties (viz. PU 31, PU 30, KU 96-3, T 9 and Krishna) and 9 nutrient management practices (viz. T1: No application of NP, T2: P (17.2 kg/ha as farmer's practice), T3: NP (20:17.2 kg/ha as RDF), T4: RDF+16.6 kg K/ha, T5: RDF+16.6 kg K+20 kg S/ha, T6: RDF+16.6 kg K+20 kg S+3 kg Zn/ha, T7: RDF+16.6 kg K+20 kg S+3 kg Zn/ha + Rhizobium, T8: RDF+16.6 kg K+20 kg S+3 kg Zn/ha+Rhizobium (RZ) +Phosphate solubilizing bacteria (PSB) and T9: RDF+16.6 kg K+20 kg S+3 kg Zn/ha + RZ + PSB + 5 t FYM/ha. Application of RDF + 16.6 kg K + 20 kg S + 3 kg Zn /ha along with seed inoculation with Rhizobium + PSB recorded significantly taller plants, higher number of branches/plant, pods/plant, higher seed yield, net return and benefit: cost ratio over control, farmer practice, RDF, RDF + 16.6 kg K/ha and RDF + 16.6 kg K/ha+20 kg S/ha but at par with rest of treatments viz. RDF+16.6 kg K+20 kg S+3 kg Zn/ha + Rhizobium,RDF+16.6 kg K+20 kg S+3 kg Zn/ha+Rhizobium + Phosphate solubilizing bacteria and RDF+16.6 kg K+20 kg S+3 kg Zn/ha + RZ + PSB + 5 t FYM/ha. Whereas application of RDF + 16.6 kg K + 20 kg S + 3 kg Zn/ha + Rhizobium + PSB + 5 t FYM/ha significantly recorded higher available organic carbon, nitrogen, phosphorus, potassium, sulphur and zinc contents in the soil over rest of the treatments. Among the genotypes, 'KU 96-3' recorded significantly higher branches/plant, pods/plant, seeds/pod, seed index, seed yield, net return and B: C ratio.

scholarly journals Co-Inoculation of Mesorhizobium ciceri with Either Bacillus sp. or Enterobacter aerogenes on Chickpea Improves Growth and Productivity in Phosphate-Deficient Soils in Dry Areas of a Mediterranean Region

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 571
Author(s):  
Imane Benjelloun ◽  
Imane Thami Alami ◽  
Mohamed El Khadir ◽  
Allal Douira ◽  
Sripada M. Udupa
Keyword(s):  
Field Experiments ◽  
Enterobacter Aerogenes ◽  
Dry Weight ◽  
Phosphate Solubilizing Bacteria ◽  
Bacillus Sp ◽  
Mesorhizobium Ciceri ◽  
Shoot Dry Weight ◽  
Combined Application ◽  
Dry Areas ◽  
Phosphate Solubilizing

Biological nitrogen fixation requires a large amount of phosphorus (P). However, most of the soils are P-deficient and the extensive use of P- chemical fertilizers constitute a serious threat to the environment. In this context, two field experiments were carried out to investigate the effect of co-inoculation of Mesorhizobium ciceri with phosphate solubilizing bacteria (PSB), Bacillus sp., and Enterobacter aerogenes, on chickpea as an alternative to chemical nitrogen (N) and phosphorous fertilizers in P-deficient soils in dry areas of Morocco. The results revealed that combined inoculation of chickpea with rhizobia and PSB showed a significant enhancement of chickpea nodulation, biomass production, yields and N, P, and protein content in grains as compared to single inoculation or single application of N or P. A significantly higher increase was obtained by inoculating chickpea with Mesorhizobium sp. MA72 combined with E. aerogenes P1S6. This combination allowed an enhancement of more than 270% in nodulation, 192% in shoot dry weight and 242% in grain yield. The effect of this combination was equivalent to the effect of combined application of N and P fertilizers. Formulation of biofertilizers based on tasted strains could be used for chickpea co-inoculation in P-deficient soils for an eco-friendly sustainable production of chickpea.

scholarly journals Response of the microbial community to phosphate-solubilizing bacterial inoculants on Ulmus chenmoui Cheng in Eastern China

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247309
Author(s):  
Juan Song ◽  
LiJing Min ◽  
JunRong Wu ◽  
Qingfang He ◽  
FengMao Chen ◽  
...  
Keyword(s):  
Microbial Community ◽  
Bacterial Community ◽  
Field Experiments ◽  
Eastern China ◽  
Illumina Miseq ◽  
Phosphate Solubilizing Bacteria ◽  
Bacterial Strains ◽  
Plant Materials ◽  
Phosphate Solubilizing ◽  
The Impact

Phosphate-solubilizing bacteria (PSB) have beneficial effects on plant health and soil composition. To date, studies of PSB in soil have largely been performed under field or greenhouse conditions. However, less is known about the impact of introducing indigenous PSB in the field, including their effects on the local microbial community. In this study, we conducted greenhouse and field experiments to explore the effects of the addition of indigenous PSB on the growth of Chenmou elm (Ulmus chenmoui) and on the diversity and composition of the bacterial community in the soil. We obtained four bacterial isolates with the highest phosphate-solubilizing activity: UC_1 (Pseudomonas sp.), UC_M (Klebsiella sp.), UC_J (Burkholderia sp.), and UC_3 (Chryseobacterium sp.). Sequencing on the Illumina MiSeq platform showed that the inoculated PSB did not become the dominant strains in the U. chenmoui rhizosphere. However, the soil bacterial community structure was altered by the addition of these PSB. The relative abundance of Chloroflexi decreased significantly in response to PSB application in all treatment groups, whereas the populations of several bacteria, including Proteobacteria and Bacteroidetes, increased. Network analysis indicated that Chloroflexi was the most strongly negatively correlated with Proteobacteria, whereas Proteobacteria was strongly positively correlated with Bacteroidetes. Our findings indicate that inoculation with PSB (UC_1, UC_M, UC_J, and UC_3) can improve the growth of U. chenmoui and regulate its rhizosphere microbial community. Therefore, inoculation with these bacterial strains could promote the efficient cultivation and production of high-quality plant materials.

scholarly journals Effects of Phosphate Solubilizing Bacteria on the Growth, Photosynthesis, and Nutrient Uptake of Camellia oleifera Abel.

Forests ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 348 ◽  
Author(s):  
Fei Wu ◽  
Jianrong Li ◽  
Yanliu Chen ◽  
Linping Zhang ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Agricultural Practices ◽  
Leaf Nitrogen ◽  
Phosphate Solubilizing Bacteria ◽  
Camellia Oleifera ◽  
Available N ◽  
Positive Effects ◽  
P Content ◽  
Phosphate Solubilizing ◽  
Sustainable Agricultural Practices

Phosphorus (P) is a necessary nutrient for plant growth and plays an important role in plant metabolisms; however, the majority of P in soil is in insoluble forms. Phosphate solubilizing bacteria (PSB) can convert the insoluble phosphates into plant-available forms and may have the potential for use in sustainable agricultural practices. This study examined the effects of two native PSB, namely Bacillus aryabhattai (JX285) and Pseudomonas auricularis (HN038), and a mixture of both strains (1:1) on the growth of Camellia oleifera Abel. seedlings. The results showed a significant promotion of the growth of C. oleifera plants by three inoculation treatments. All the PSB inoculation treatments could improve the leaf nitrogen (N) and P content and had positive effects on the available N, P, and potassium (K) content of rhizosphere soil. A co-inoculation of the two native PSB strains caused a synergistic effect and achieved the best benefit. In conclusion, B. aryabhattai and P. auricularis could be used as biological agents instead of chemical fertilizers for agricultural production to reduce environmental pollution and increase the yield of tea oil.

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 Relationships of Gibberellic Acid to Water and Phosphorus in the Growth, Sugar Production, and Enzyme Behavior of Sugarcane

1969 ◽  
Vol 53 (3) ◽  
pp. 149-166
Author(s):  
Alex G. Alexander
Keyword(s):  
Gibberellic Acid ◽  
Water Supply ◽  
Field Experiments ◽  
Maximum Growth ◽  
Sand Culture ◽  
Growth Responses ◽  
P Deficiency ◽  
P Content ◽  
Variable Water ◽  
P Supply

Immature sugarcane was subjected to variable water and phosphorus (P) supply and then treated with foliar gibberellic acid (GA). All plants were grown in sand culture and received initial water and P treatments at 88 days of age. Water regimes of inadequate, adequate, and abundant supply were established with 1, 2, and 4 liters of water per day, respectively. Variable P included 0, 6, and 30 meq./liter. Foliar GA was given as 0-, 0.01-, and 0.10-percent solutions. There were three objectives: 1 To determine the effectiveness of GA as a growth stimulant and regulator of sugar-enzyme relationships under conditions of water and P stress; 2, to explore physiological limits within which GA-enzyme relationships persist; and 3, to explore the enzyme basis of water and P performance under extreme conditions of GA-stimulated growth. The following results were recorded: 1. Both water and GA had greatly increased stalk weight and intemode length 5 weeks after GA treatment. 2. Water supply strongly affected GA-growth responses. Water-deficient plants were proportionately more stimulated by GA than water-rich plants. However, maximum growth required both GA and abundant water. 3. GA appeared to increase the efficiency of water utilization, regardless of the amount of water supplied. 4. Variable water supply severely transformed the behavior patterns of ATP-ase, amylase, invertase and polyphenol oxidase. 5. GA treatment of low-water plants appeared to increase the severity of water shortage. Hydrolytic enzymes were severely retarded by GA when water supply was low, but not when adequate or abundant water was available. On the basis of growth and enzyme data it was proposed that GA caused an internal redeployment of water so that the net quantity available for enzymatic functions was reduced. It was also proposed that GA might decrease the internal water supply while increasing growth, in contrast to the commercial practice of externally withholding water which decreases growth. 6. Low P was inadequate for maximum growth, but severe P deficiency was not achieved. GA was proportionally more effective in promoting fresh weights and internode elongation when P supply was low. 7. GA moderately increased leaf P content when P supply was low. The increase was primarily organic P (PO) and this was attributed to GA suppression of phosphatase and ATP-ase. The significance of GA alteration of PO is discussed. 8. Evidence was found of a GA-induced PO decline mediated by increased amylase activity. 9. Leaf peroxidase was extremely sensitive to P supply, and to GA in P-hungry plants. The enzyme was excessively active in low-P X low-GA plants. 10. It is shown that cane growth and enzymology is far more sensitive to P than field experiments have indicated. The importance of PO, phosphatases and phosphorylase, as contrasted to total P content, is stressed.

Yield and P uptake by rice and wheat grown in a sequence as influenced by phosphate fertilization with diammonium phosphate and Mussoorie rock phosphate with or without crop residues and phosphate solubilizing bacteria

2003 ◽  
Vol 141 (3-4) ◽  
pp. 359-369 ◽  
Author(s):  
S. N. SHARMA ◽  
R. PRASAD
Keyword(s):  
Rock Phosphate ◽  
Field Experiments ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
Cropping System ◽  
P Uptake ◽  
Diammonium Phosphate ◽  
Low Grade ◽  
Phosphate Solubilizing Bacteria ◽  
Phosphate Solubilizing

The field experiments were carried out at the Indian Agricultural Research Institute, New Delhi during 1996–97 to 1998–99 to study the effect of phosphate solubilizing bacteria (PSB) and incorporation of wheat and rice residue on the relative efficiency of diammonium phosphate (DAP) and Mussoorie rock phosphate (MRP) in three cycles of rice–wheat cropping system. Application of MRP had no significant effect on grain and straw yield and P uptake by rice and wheat; however, when it was inoculated with PSB, it increased grain and straw yields as well as P uptake of both rice and wheat. Efficiency of MRP+PSB was further increased when rice and wheat residues were incorporated and this practice made MRP on a par with DAP. Available P in soil after three cycles of rice–wheat cropping was more after MRP+PSB and incorporation of rice and wheat residues than after DAP. The results of the present study, therefore, indicate that low grade rock phosphate such as MRP can be advantageously utilized in rice–wheat cropping system when applied with PSB inoculation and incorporation of rice and wheat residues.

scholarly journals Effects of Phosphatic Biofertilizer with Inorganic and Organic Sources of Phosphorus on Growth and Yield of Lentil

2013 ◽  
Vol 5 (2) ◽  
pp. 225-230 ◽  
Author(s):  
MA Haque ◽  
MK Khan
Keyword(s):  
Lens Culinaris ◽  
Field Experiments ◽  
P Uptake ◽  
Growth And Yield ◽  
Soil Test ◽  
Phosphate Solubilizing Bacteria ◽  
Liquid Form ◽  
Yield Attributes ◽  
Phosphate Solubilizing ◽  
Total P

Field experiments were conducted to evaluate the effects of phosphatic biofertilizer with inorganic or organic sources of P on lentil (Lens culinaris Medikus) (var. Binamasur 2), Phosphatic biofertilizer (PB). All the fertilizers and cowdung were applied on the basis of soil test values and Integrated Plant Nutrient System (IPNS). Mixed cultures of two phosphate solubilizing bacteria were used as phosphatic biofertilizer (PB). PB was applied as liquid form with lentil seeds before sowing. Phosphatic biofertilizer with inorganic or organic sources of P influenced the growth and yield attributes and yields of lentil at both the locations. Phosphatic biofertilizer with 50% P from TSP gave the highest seed and stover yields as well as total P uptake by lentil compared to the 100% P from TSP. The results revealed that 50% inorganic or organic sources of P can be saved by the integrated using of phosphatic biofertilizer for the lentil cultivation in Bangladesh.DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14819 J. Environ. Sci. & Natural Resources, 5(2): 225-230 2012

scholarly journals Sustainable Management with Mycorrhizae and Phosphate Solubilizing Bacteria for Enhanced Phosphorus Uptake in Calcareous Soils

Agriculture ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 334 ◽  
Author(s):  
Fazli Wahid ◽  
Shah Fahad ◽  
Subhan Danish ◽  
Muhammad Adnan ◽  
Zhen Yue ◽  
...  
Keyword(s):  
Sustainable Management ◽  
Field Experiments ◽  
Block Design ◽  
Wheat Yield ◽  
Phosphorus Uptake ◽  
Calcareous Soils ◽  
P Uptake ◽  
Phosphate Solubilizing Bacteria ◽  
Bacillus Sp ◽  
Phosphate Solubilizing

Low availability of phosphorus (P) in calcareous soils is a major problem for sustainable improvement in cereals crops yield. A higher amount of calcium in soils precipitates the P, thus making it immobile in soil. Inoculation of arbuscular mycorrhizal fungi (AMF) and phosphate solubilizing bacteria (PSB) could be helpful in the sustainable management of immobile P in soil. However, their combined use in releasing P from rock phosphate (RP) in alkaline calcareous soils have been little investigated. In this regard, two successive field experiments were conducted to assess the interactive inoculation potential of AMF and PSB strain Bacillus sp. PIS7 with RP on the yield and P uptake of maize (Zea mays L.) and wheat (Triticum aestivum L.) crops in alkaline calcareous soil. The first field experiment was conducted in a complete randomized block design with 10 treatments and three replications by inoculating maize seeds with AMF and Bacillus sp. PIS7 inoculum alone and in combination with RP. Their performance was compared with single super phosphate (SSP) inorganic fertilizer. Afterward, the residual effects of inoculated AMF and Bacillus sp. PIS7 were investigated on wheat as a subsequent crop. Maize and wheat yield parameters, P uptake, AMF root colonization, and PSB population was measured. The results of both trials indicated the beneficial effects of AMF and Bacillus sp. PIS7 with RP in increasing the plants grain yield and P uptake until the second season after inoculation, as compared to controls. Likewise, maize and wheat roots colonization, PSB population density, and post-harvest soil properties were also improved by the combined inoculation of AMF and Bacillus sp. PIS7 with RP. It is concluded that PSB solubilizes the unavailable forms of P in combination with RP fertilizers in soil, and AMF ultimately transfers it to plants for growth promotion. Moreover, the combined inoculation of AMF and PSB with ground RP had more potential to improve maize-wheat yields and P uptake comparable to those obtained by using expensive phosphatic fertilizers in P deficient calcareous pH soils.

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