Literaturrecherche

Literatur Haider K (1991) Regulation of the formation and degradation of humic substances in soil. In: Berthelin J (ed) Diversity of environmental biogeochemistry. Amsterdam: Elsevier Science Publ, pp 381-389

Literatur Haider K, Mosier AR, Heinemeyer O (1991) Effect of plants on nitrogen and carbon turnover in soil. In: Berthelin J (ed) Diversity of environmental biogeochemistry. Amsterdam: Elsevier Science Publ, pp 419-426

Literatur Helal M, Sauerbeck D (1991) Short term determination of the actual respiration rate of intact plant roots. In: McMichael BL, Persson H (eds) Plant roots and their environment. Amsterdam: Elsevier Science Publ, pp 88-92

Literatur Helal M, Sauerbeck D (1991) Soil and root phosphatase activity and the utilization of inositol phosphates as dependent on phosphorus supply. In: McMichael BL, Persson H (eds) Plant roots and their environment. Amsterdam: Elsevier Science Publ, pp 93-97

Literatur Munch JC (1991) Nitrous oxide emission from soil as determined by the compositionn of denitrifying microbial population. In: Berthelin J (ed) Diversity of environmental biogeochemistry. Amsterdam: Elsevier Science Publ, pp 309-316