Dd. Patra et Dv. Singh, INFLUENCE OF MENTHA (MENTHA-ARVENSIS L) SPENT ON THE SIZE OF MICROBIAL BIOMASS AND NITROGEN MINERALIZATION IN NORMAL AND SALT-AFFECTED SOILS, Agrochimica, 36(4-5), 1992, pp. 361-370
Two different soils, one normal and the other saline alkali, were amen
ded with enriched and well decomposed Mentha spent. After one month of
pre-incubation, mineral N (NH4 and NO3), biomass C and biomass N were
estimated at 10, 30, 45, 60 and 100 days. Mentha spent addition signi
ficantly increased the mineral N, biomass N and 'available N' in norma
l soil but the effect was less pronounced in salt affected soil. Bioma
ss in Mentha spent amended soil was higher than that in unamended soil
up to the end of the incubation period.