+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effect of soil conditioners on some biological properties of sandy soil and the diversity of microbes involved in their biodegradation

, : Effect of soil conditioners on some biological properties of sandy soil and the diversity of microbes involved in their biodegradation. Egyptian Journal of Microbiology 23(1): 99-108

A field experiment was carried out in a newly reclaimed sandy soil at Salhia project to study the effects of the soil conditioners bitumen (at rate of 25, 50 and 100 g/m2) and ureaformaldehyde (at rate of 35, 75 and 150 g/m2) under peanut on some important groups of microorganisms contributing to soil fertility. The application of bitumen and ureaformaldehyde at the two low application rates stimulated the total bacterial, fungal and Azotobacter counts in sandy soil. The higher rate of conditioners applications, however, delayed the proliferation of soil microorganisms for 60 days. The application of bitumen and ureaformaldehyde to sandy soil planting with peanut inoculated with Rhizobium spp induced insignificant increase in nodulation, dry matter yield and N accumulation except the higher application rate which resulted in slight decrease in nodulation. Generally, no marked retardation of nodulation or N2 fixation was noted as a consequence to the conditioner application. The bacterial genera contributing to the biodegradation of bitumen and ureaformaldehyde in the sandy soil are Bacillus, Micrococcus, Pseudomonas, Flavobacterium, and Streptomyces. Bacillus was the most dominant genus for both soil conditioners.


Other references

Fremes, S.E.; Furukawa, R.D.; Li, R.K.; Weisel, R.D.; Mickle, D.A.; Tumiati, L.C., 1991: Prolonged preservation with University of Wisconsin Solution. Previous studies from this institution using human cell cultures have suggested that University of Wisconsin Solution may be preferred for prolonged cardiac storage. University of Wisconsin Solution (UWS) contains adenosine (5 mmole/liter) which c...

Miyazaki, N., 1980: Preliminary note on age determination and growth of the rough-toothed dolphin, Steno bredanensis, off the Pacific coast of Japan. International Whaling Commission Report of the Commission, 171-179 Special issue 3

Foglietti,; Percheron, F., 1967: Preliminary results of the chemical study of pectin in carnation roots. Soc Chim Biol Bull 48(12): 1439-1442

Umino O.; Dowling J.E., 1989: The effects of bicuculline and enkephalin on horizontal cells in the white perch retina. Investigative Ophthalmology & Visual Science 30(3 SUPPL): 17

Langbehn, C., 1971: The capacity for growth of farms under different assumptions to do with location. If the income expectations of those working in agriculture in W. Germany are to he met, those who remain in farming will have to increase their productivity still further. The overwhelming majority of full-time farms will have to expand, in the se...

Jones, K., 1978: Society looks at the psychiatrist. British Journal of Psychiatry 132: 321-332

Gamulin, V.; Lukic, L., 1999: Structure and evolution of genes encoding polyubiquitin in marine sponges. Progress in Molecular and Subcellular Biology 21: 157-181

Blevins, L.S., 2015: The art of medicine. Neurosurgery 11 Suppl 2: 1-2

Gurevitch, J.; Scheiner, S.M. .; Fox, G.A.; Bowman, W.D.Reviewer, 2003: The ecology of plants (book review. American Journal of Botany 90(6): 0-4

Chandler, W.F., 2010: Treatment of disorders of the pituitary gland: pearls and pitfalls from 30 years of experience. Clinical Neurosurgery 56: 18-22