Two mathematical models in rhizobium ecology

Abstract

Abstract: In this paper, leguminous plants grown in both natural heavy loam and sterile sand were studied. The increase of Rhizobium japonicum number conforms to Logistic model using MPNmethod, and a corresponding BASIC program about counting is compiled. There is a mathematical relationship between inoculum rate and nodule occupancy by counting six groups of data, and also, a corresponding BASICprogram about counting is compiled.

Key words: Rhizobium ecology, Mathematical model, Inoculum rate, Nodule occupancy

Ding Wu, Li Fudi . Two mathematical models in rhizobium ecology[J]. Chinese Journal of Applied Ecology, 1992, 3(2): 173-178.

References

[1] 王福生、陈华癸、李阜棣.1985.土壤中大豆根瘤菌之间竞争结瘤的研究.华中农学院学报,4(3):38-47.

[2] 许光辉、郑洪元主编.1986,土壤微生物分析方法手册.农业出版社,北京,296-298.

[3] 南京农学院主编.1978.田间试脸和统计方法.农业出版社,北京,194-214.

[4] 谭浩强、田淑清、谢锡迎.1983,BASIC语言.科学普及出版社,北京,13-123.

[5] J.M.芬森特著(上海植物生理研究所固犯室译).1974.根瘤菌实用研究手册.上海人民出版社,上海,72-73.

[6] Amarger, N.and.-.Lobreau, J.P.1982,Quantitative study of nodulation competitiveness in Rhizobium strain.Appl.Environ.Microbiol.44:583-588.

[7] Bohlool, B. B, and Schmidt, E. L, 1873.Persistence and competition aspects of Rhizobium japorcicum observed in soil by immunofluorescence microscopy. Soil Sci.Soc. Am. Proc., 37:581-584.

[8] Bohlool, B,B.and Schmidt,E.L.1970.mmunofluorescent detection of Rhizobium japonicum in soils. Soil. Sci., 110:229-236.

[9] Brockwell, J.1963. Accuracy of a plantinfection technique for counting population of Rhizobium trifolii. Appl. Microbiol ., 11:305-311.

[10] Bushby, H.V, A.1981, Quantitative estimation of Rhizobia in. nonsterile soil using antibiotics and fungicides. Soil Biol. Bio-them 13:237-239.

[11] Crozat, Y. et al.1982. Survival rates of Rhizobium japonicum gopulation introduced into different soils. Soil BioI. Biochem.,14:401-405.

[12] Ireland, J. A. and Vincent, J. M. 1982, A quantitative study of competition for nodule formation. In Transaction of the ath International Congrews on Soil Science, Adlaide, Vol,2. International Society of Soii Science and Angus and Robertson,Sydney, .Australia, pp.85-93.

[13] Moawad, H.A., Ellis, W.R.and Schmidt, E.L.1984.Rhizosphere response as a factor in competition among three serogroups of indigenous Rhizobium japonicum for nodulation of field-grown soybeans. Appl.Environ. Microbiol 47:607-612.