References
- Blakemore , L.C. , Searle , P.L. and Daly , B.K. 1972 . Methods for chemical analysis of soils . New Zealand Soil Bureau scientific report , lOA
- Bonish , P.M. 1979 . Clover rhizobia in soils: assessment of effectiveness using the infection count method . New Zealand journal of agricultural research , 22 : 89 – 93 .
- Date , R.A. and Vincent , J.M. 1962 . Determination of the number of root-nodule bacteria in the presence of other organisms . Australian journal of experimental agriculture and animal husbandry , 2 : 5 – 7 .
- Greenwood , R.M. Populations of rhizobia in New Zealand soils . Proceedings of the New Zealand Grassland Association . Vol. 26 , pp. 95 – 101 .
- Hartel , P.G. and Alexander , M. 1983 . Growth and survival of cowpea rhizobia in acid, aluminium-rich soils . Journal of the Soil Science Society of America , 47 : 502 – 506 .
- Lowendorf , H.S. 1980 . Factors affecting survival of Rhizobium in soil . Advances in microbial ecology , 4 : 87 – 124 .
- Lowendorf , H.S. and Alexander , M. 1983 . Identification of Rhizobium phaseoli strains that are tolerant or sensitive to soil acidity . Applied and environmental microbiology , 45 : 737 – 742 .
- Mahler , R.L. and Wollum II , A.G. 1981 . Seasonal variation of Rhizobium trifolii in clover pastures and cultivated fields in North Carolina . Soil science , 132 : 240 – 246 .
- Mountier , N.S. , Grigg , J.L. and Oomen , G.A.C. 1966 . Sources of error in advisory soil tests. I. Laboratory sources . New Zealand journal of agricultural research , 9 : 328 – 338 .
- Norris , D. 1958 . Rhizobium needs magnesium, not calcium . Nature , 182 : 734 – 735 .
- Norris , D.O. 1959 . The role of calcium and magnesium in the nutrition of Rhizobium . Australian journal of agricultural research , 10 : 651 – 698 .
- Nutman , P.S. 1969 . Symbiotic nitrogen fixation: legume nodule bacteria . Rothamsted report Jor 1968, Part 2 , : 179 – 18l .
- Rys , G.J. and Bonish , P.M. 1981 . Effectiveness of Rhizobium trifolii populations associated with Trifolium species in Taranaki, New Zealand . New Zealand journal of experimental agriculture , 9 : 327 – 335 .
- van Schreven , D.A. 1972 . On the resistance of effectiveness of Rhizobium trifolii to a low pH. . Plant and soil , 37 : 49 – 55 .
- Vincent , J.M. 1962 . Influence of calcium and magnesium on the growth of Rhizobium . Journal of general microbiology , 28 : 653 – 663 .
- Vincent , J.M. 1970 . “ A manual for the practical study of rootnodule bacteria ” . In IBP handbook no. 15 , Oxford : Blackwell Scientific Publications .
- Vincent , J.M. and Colburn , J.R. 1961 . Cytological abnormalities in Rhizobium trifolii due to a deficiency of calcium or magnesium . Australian journal of science , 23 : 269 – 270 .
- Vincent , J.M. and Waters , L.M. 1954 . The root-nodule bacteria as factors in clover establishment in the red, basaltic soils of the Lismore District, New South Wales. II. Survival and success of inocula in laboratory trails . Australian journal of agricultural research , 5 : 61 – 76 .