Effect of Adsorbed Trichoderma harzianum (G-18) and Different Doses of Lime on Biological Nitrogen Fixation Activity in Black Zone Soil of Republic of Tataristan (Russia)

Abstract

The basic requirement for sustamable management of soil is to confirm that soil fertility is maintained in a productive state and condition so as to enable the soil to continue to provide viable economic yields with mininam degradation of sod quality and quantity. The biological nitrogen fixation activity of black zone sol of republic of Tataristan (Russia) was studied after inoculation of adsorbed Trichoderma harzianum (G-18) on different adsorbents like barely husk, saw dust, chick compost and different doses of Ime. The total incubation period was ninety days. Results obtained showed that the biological nitrogen fixation varied, depending upon the dose of lime, type of adsorbent and incubation time. The chick manure adsorbed Trichoderma harzianum showed the maximum nitrogen fixation 92 mg /kg/hr. at Stons/hact.in 30 days the saw-wood adsorbed Trichoderma harzianum 5.0mg/g/Au at 2 toms/hact, in 60 days and the barley husk adsorbed Trichoderma harzianum, 80mg/kg/hr at 2 tons/hact. of lime in 60 days incubation.