共 45 条
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Anderson R.V., Coleman D.C., The use of glass microbeads in ecological experiments with bacteriophagic nematodes, J. Nematol., 9, pp. 319-322, (1977)
[3]
Black A.L., Relative Nitrogen and Phosphorus, (1961)
[4]
Bremner J.M., Total nitrogen, Methods of Soil Analysis, pp. 1149-1178, (1965)
[5]
Casida L.E., Phosphatase activity of some common soil fungi, Soil Sci., 87, pp. 305-310, (1959)
[6]
Chapman H.D., Cation-exchange capacity, Methods of Soil Analysis, pp. 891-901, (1965)
[7]
Cutler D.W., Crump L.M., Sandon H., VII. A quantitative investigation of the bacterial and protozoan population of the soil, with an account of the protozoan fauna, Philos. Trans. R. Soc. London, Ser. B, 211, pp. 317-350, (1922)
[8]
Darbyshire J.F., Wheatley R.E., Greaves M.P., Inkson R.H.E., A rapid micromethod for estimating bacterial and protozoan populations in soil, Rev. Ecol. Biol. Soc., 11, pp. 465-475, (1974)
[9]
Day P.R., Particle fractionation and particle-size analysis, Methods of Soil Analysis, pp. 545-567, (1965)
[10]
Dutzler-Franz G., Der Einfluss einiger chemischer und physikalischer Bodenmerkmale auf die Enzymaktivitat verschiedener Bodentypen, Z. Pflanzeneraehr. Bodenkd., 140, pp. 329-350, (1977)