Summary
Ammonia excretion was studied in the presence of Mn++ in liquid culture and soil with amendments of the minerals using two ammonia excreting strains ofAzotobacter chroococcum (AC2 and AC50) and a non-excreting strain (AC45) under sterilized as well as unsterilized conditions. Ammonia excretion increased in the presence of 1×10−7M Mn++ in liquid culture as well as in soil. But there was a decrease in ammonia excretion with increasing clay content.
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References
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Narula, N., Gupta, K.G. Ammonia excretion byAzotobacter chroococcum in liquid culture and soil in the presence of manganese and clay minerals. Plant Soil 93, 205–209 (1986). https://doi.org/10.1007/BF02374222
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DOI: https://doi.org/10.1007/BF02374222