Comparing the effectiveness of mycorrhizal inoculation and amendment with sugar beet, rock phosphate and Aspergillus niger to enhance field performance of the leguminous shrub Dorycnium pentaphyllum L.

Caravaca, F.; Alguacil, M.M.; Azcón‐Aguilar, Concepción; Díaz, G.; Roldán, A.

doi:10.1016/j.apsoil.2003.08.002

Cited by 60 publications

(30 citation statements)

References 33 publications

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“…However its solubilisation occurs less rapidly in acidic soils (Ouahmane et al, 2000;Caracava et al, 2004). Physical and chemical treatments like thermal alteration and partial acidification increase P availability from RP are expensive.…”

Section: Discussionmentioning

confidence: 99%

“…These attributes of the fungal strain of A. niger are an important mechanism for solubilisation of relatively insoluble P (Goenadi et al, 2000). The study of A. niger has been carried along with other Aspergillus species as an efficient RP and fluorapatite solubilizer, where lowering of pH of soil was found to be associated with solubilisation process (Cereziine et al, 1988;Caracava et al, 2004;Kang et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

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Phosphate Solubilizers from the Rhizospher of Piper nigrum L. in Karnataka, India

Seshachala¹,

Tallapragada

2012

Chilean J. Agric. Res.

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Black pepper (Piper nigrum L.) is a climbing vine known for its pungent fruit used as a spice worldwide. The aim of this study was to evaluate the available P content in the native soils where pepper is grown as a crop plant. The native population of phosphate solubilising microbes (PSM) was studied from the rhizosphere of P. nigrum plants grown in the Western Ghats of Karnataka, India. A variety of phosphate solubilising bacteria and fungi were isolated from the rhizosphere soil samples. Phosphate solubilising capacity of different isolates was studied on Pikovskaya's medium. The isolates were tested for their phosphate solubilising capacity in vitro with three different phosphate sources, tricalcium phosphate (TCP), potassium dihydrogen phosphate (KHP), and rock phosphate (RP) in the concentrations 2.5, 5.0 and 7.5 g L -1 . The three phosphate sources were solubilised by the isolates in varying proportions. The dominant PSM flora obtained from the samples included Bacillus and Aspergillus. The study showed that PSM utilised the three phosphate sources TCP, KHP, and RP with considerable variability. The phosphatase activity of the isolates showed that the predominant microorganisms were Bacillus subtilis (5.33 U mL -1 ) and Aspergillus (11.5 U mL -1 ). The predominant organisms were identified up to molecular level.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Phosphate Solubilizers from the Rhizospher of Piper nigrum L. in Karnataka, India

Seshachala¹,

Tallapragada

2012

Chilean J. Agric. Res.

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“…There are many reports about the direct application of RP as a P source to the soils (Chien and Menon, 1995;Akande et al, 2008;Iqbal et al, 2013). From these studies, it has been clearly found that this approach is feasible for the acidic soils having low pH and direct application of RP to the alkaline/calcareous soils as prevailing in Pakistan is not a feasible approach (Caravaca et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Comparative Efficacy of Rock Phosphate Enriched Organic Fertilizer vs. Mineral Phosphatic Fertilizer for Nodulation, Growth and Yield of Lentil

Ditta¹,

Arshad²,

Zahir³

et al. 2015

IJAB

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To cite this paper: Ditta, A., M. Arshad, Z.A. Zahir and A. Jamil, 2015. AbstractOptimum impregnation ratio of rock phosphate (RP) and compost in RP-enriched organic fertilizer, its time and rate of application to the crop plants affect the availability of nutrients through the process of mineralization and immobilization. A series of pot and field experiments were conducted to investigate the comparative efficacy of RP-enriched organic fertilizer vs. mineral phosphatic fertilizer on growth, yield and nodulation of lentil. Optimum impregnation ratio of RP and compost and the time of application to improve growth, nodulation and yield of lentil were investigated under wire house conditions. The impregnation ratio of 50:50 RP and compost and time of application of seven days before sowing resulted in the maximum nodulation, growth and yield parameters compared to the other impregnation ratios and the times of application. Optimized impregnation ratio and time of application were further investigated for optimum rate of application under field conditions to enhance nodulation, growth and yield of lentil in comparison with recommended mineral phosphatic fertilizer. The application of RP-enriched organic fertilizer @ 1000 kg ha -1 showed an increase of 35.5, 27 and 6% in number of nodules, fresh weight of nodules, and grain yield compared to chemical phosphatic fertilizer, respectively. Similarly, significant increase in P contents of straw and grain was also observed with the application of RP-enriched organic fertilizer @ 1000 kg ha -1 compared to chemical phosphatic fertilizer. However, the effect of the application of 800 and 1000 kg ha -1 was statistically non-significant for most of the parameters studied. The results suggested that RP-enriched organic fertilizer with optimum impregnation ratio of RP and compost, time of application and rate of application had a pronounced effect on nodulation, growth and yield of lentil as compared to recommended chemical phosphatic fertilizer.

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“…One such way of reducing the use of synthetic fertilizer is through the use of phosphate rock (PR), which has been considered as cheaper than synthetic phosphate fertilizers for supplying available phosphorus to plants (Lorion, 2004). The problem with PR is, however, its low solubility, particularly in non-acidic soils (Caravaca et al, 2004). Phosphate rock must therefore be treated to convert phosphate to available forms for plant use in soils.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus release dynamics under phosphate rock and ammonium sulphate in soil amendment

Agyarko¹,

Frimpong²,

Abunyewa³

2017

Eurasian Journal of Soil Science (Ejss)

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Article Info Received : 05.01.2017 Accepted : 07.04.2017 This study was undertaken to assess the release pattern of available phosphorus in a Togo phosphate rock and ammonium sulphate soil amendment. Treatments were prepared through the combinations of soil, phosphate rock (PR) and ammonium sulphate (AS) fertilizer. The treatments were; Control, 12.5g PR, 25g PR, 12.5g PR+1g AS, 12.5g PR+2g AS, 25.0g PR+1g AS and 25.0g PR+2g AS kg -1 soil. Standard laboratory methods were used to assess pH, available phosphorus (P) and total phosphorus (P). Generally, the pH of treatments decreased to the lowest levels between the 4 th and 6 th weeks after amendment. The AS fertilizer treatments had significantly (p≤0.05) lower pH values than those without. Amendments with the 2gAS kg -1 soil had significantly (p≤0.05) lower mean pH values than those with the 1gAS kg -1 soil. The AS fertilizer treatments also had significantly (p ≤ 0.05) higher levels of the available P than those without. The higher the amount of the AS in the amendment, the higher the level of the available P concentration. Increase in the level of AS in the amendment also increased the mean value of the available P released. The peaks of available P released were observed between the 6 th and the 8 th weeks, after the lowest pH values had been attained. Decreased soil pH relatively increased the amount of phosphorus released (y = -12.47x + 111.4; R 2 =0.53). Addition of PR in the treatments increased the total P levels. In conclusion, combined application of AS and PR has the potential to increase soil P availability, which is beneficial to crop farmers.

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Comparing the effectiveness of mycorrhizal inoculation and amendment with sugar beet, rock phosphate and Aspergillus niger to enhance field performance of the leguminous shrub Dorycnium pentaphyllum L.

Cited by 60 publications

References 33 publications

Phosphate Solubilizers from the Rhizospher of Piper nigrum L. in Karnataka, India

Phosphate Solubilizers from the Rhizospher of Piper nigrum L. in Karnataka, India

Comparative Efficacy of Rock Phosphate Enriched Organic Fertilizer vs. Mineral Phosphatic Fertilizer for Nodulation, Growth and Yield of Lentil

Phosphorus release dynamics under phosphate rock and ammonium sulphate in soil amendment

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