10Sep 2017

EVALUATION OF HUMUS AS CARRIER FOR BIOFERTILIZERS TO IMPROVE THE GROWTH OF VEGETABLE CROPS AND SOIL FERTILITY.

  • Research Scholar, Department of Biotechnology, Nehru Arts and Science College, Coimbatore.
  • Assistant Professor, Department of Botany, Government Arts College, Ariyalur, Coimbatore.
Crossref Cited-by Linking logo
  • Abstract
  • Keywords
  • References
  • Cite This Article as
  • Corresponding Author

The aim of the present study was to evaluate the potential of humus as carrier for PGPR isolates to improve the growth of crop plants. The NFB, PSB and KSB isolates separately and in combination were mixed with humus and cured. The shelf life of PGPR in the carrier based preparations were monitored upto 6 months and found to be maximum at 105th day for PSB & KSB and 120th day for NFB. At 180th day no growth was obtained. But the carrier incorporated with 10% sucrose showed microbial growth after 210 days. The effect of biofertilizer preparations were tested on brinjal seedlings at 7 treatments in 5 replications. Co-inoculated pots were reported with better growth rate when compared to control pots. The soil analysis showed significant increase in plant available nutrients in soils treated with coinoculation of NFB, PSB and KSB. From this study, it is concluded that humus can be used as an effective, ecofriendly and long lasting carrier for bioinoculum to be used as bioferlilizer to improve the growth of vegetable crops as well as soil fertility.


  1. Biofertilizers and organic fertilizers in fertilizer (Control) Order, 1985. National Centre of Organic Farming, Ministry of Agriculture, Govt of India, Uttar Pradesh.
  2. Black, C.A. (1965). Methods of soil analysis of part I AM. Soc. Agron. Inc. Publi Madison Wisconsin USA.
  3. Brar, S.K., Sarma, S.J. and Chaabouni, E. (2012). Shelf life of biofertilizers: An accord between formulations and genetics. J. Biofertil. Biopestici. 3(5): 1000e109.
  4. Contreras-Cornejo, H.A., Macias-Rodriguez, L., Cortes Penegos, C. and Lopez ?Bucio, J. (2009). Trichodermavirens, a plant beneficial fungus, enhances biomass production and promotes lateral root growth through an auxin dependent mechanism in Arabidopsis. Amer. Soci. Of Plant Biologists. 149(3): 1579-1592.
  5. Dworkin, M. and Foster, J. (1958). Experiments with some microorganisms which utilize ethane and hydrogen. J. of Bacteriology. 75: 572 ? 601.
  6. Gaind, S. and Gaur, A.C. (2004). Evaluation of fly ash as a carrier for diazotrophs and phosphobacteria. Bioresource Technology. 95: 187-190.
  7. Gaind, S. and Gaur, A.C. (1990). Shelf life of phosphate solubilizing inoculants as influenced by type of carrier, high temperature and low moisture. Can. J. Microbiol. 36: 846-849.
  8. Glick, B.R., Changping, L., Sibdas, G. and Dumbroff, E.B. (1997). Early development of canola seedlings in the presence of the plant growth promoting rhizobacteriumPseudomonas putida GR 12-2. Soil Biol. Biochem. 29: 1233-1239.
  9. Hall, J. A., Pierson, D., Ghosh, S. and Glick, B. R. (1996). Root elongation in various agronomic crops by the plant growth promoting rhizobacteriaPseudomonas putida GR 12-2. Isra. J. Plant Sci. 44: 37-42.
  10. Hu, X. F., Chen, I. and Gvo, J. F. (2006). Two Phosphate/Potassium solubilizing bacteria isolated for Tiannumountain, zhejieng, China. World J. Micro. Biotech. 22: 983-990.
  11. Motsara, M.R. and Roy, R.N. (2008). Guide to laboratory establishment for plant nutrient analysis. FAO fertilizer and plant nutrition bulletin.Food and agriculture organization of the united nations
  12. Olsen, R.A., Watanabe, F.S., Cosper, H.R., Larson, W.E. and Nelson, L.B. (1954). Residual phosphorus availability in long time rotations on calcareous soils. Soil Science. 78: 141-151.
  13. Pavlis, R. (2013). What is Humus. Garden myths- Book-1.
  14. Pikovskaya, R. I. (1948). Mobilization of phosphates in soil in connection with the vital activities of some microbial species. 17: 362 ? 370.
  15. Subbiah, B.V. and Asija, G.L. (1956). A rapid procedure for the estimation of available nitrogen in soil. Current Science. 25: 258-260.
  16. TNAU Agritech Portal. Organic farming. Tamil Nadu Agricultural University, Coimbatore.
  17. Van Loon, L.C. (2007). Responses to plant growth promoting rhizobacteria. Europ. J. Plant Pathology. 119(3): 243-254.
  18. Vessey, J.K. (2003). Plant growth promoting rhizobacteria as biofertilizers. Plant soil. 255: 571-586.
  19. Wu, S.C., Cao, Z.H., Li, Z.G., Cheung, K.C. and Wong, M.H. (2005). Effects of biofertilizer containing N- fixer,P and K solubilizers and AM fungi on maize growth: a green house trial. Geoderma. 125: 155-166.
  20. Yadav, A.K. and Chandra, K. (2014). Mass production and Quality control of microbial inoculants. Proc Indian NatnAcad 80 (2). Spl. Sec. 483-489.
  21. Yardin, M.R., Kennedy, I.R. and Thies, J.E. (2000). Development of high quality carrier materials for field delivery of key microorganisms used as bio-fertilizers and bio-pesticides. Radiation Physics and Chemistry. 57: 565-568.

[Dincy Babu and T. Balasaravanan. (2017); EVALUATION OF HUMUS AS CARRIER FOR BIOFERTILIZERS TO IMPROVE THE GROWTH OF VEGETABLE CROPS AND SOIL FERTILITY. Int. J. of Adv. Res. 5 (Sep). 243-248] (ISSN 2320-5407). www.journalijar.com


Dincy Babu
Research Scholar, Department of Biotechnology, Nehru Arts and Science College, Coimbatore

DOI:


Article DOI: 10.21474/IJAR01/5322      
DOI URL: http://dx.doi.org/10.21474/IJAR01/5322