[A contribution to the study of respiration in soil and in the rhizosphere of winter wheat (author's transl)].

In a complete respiration test, involving also other analyses, soil respiration (CO2 evolved) was measured in a fertilization experiment in the rhizosphere of the plants in untreated soil. The highest and most effective CO2 production was obtained by the variants "rhizosphere, fertilized with nitrogen". The decreasing order of the influence on CO2 production is as follows: rhizosphere, nitrogen fertilization, organogenetic state of the plant. With glucose addition, nitrogen fertilization predominated over the effect of the rhizosphere.