caa a22 4500 477109314 CHVBK 20180405111604.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00029280 doi (NATIONALLICENCE)springer-10.1007/BF00029280 Long term field study shows increased biomass production in tree legumes inoculated with Rhizobium [Elektronische Daten] [Banwari Lal, Sunil Khanna] Nodulation potential, nitrogen fixation efficiency (nitrogenase activity) and biomass yield response of Leucaena leucocephala and Acacia nilotica to inoculation with 6 selected fast growing Rhizobium strains was explored in long-term (5 year) field trials. All the strains formed nodules and fixed nitrogen in L. leucocephala and A. nilotica. Seasonal effects on nitrogenase activity was observed and in winter (ambient temperature about 20 °C), nitrogenase activity could not be detected. However, with the onset of spring and a rise in temperature, fresh nodulation (renodulation) by all the inoculant rhizobial strains was observed in both the tree legumes. In L. leucocephala, maximum renodulation was exhibited by strain A1 while in A. nilotica, strain AB3 formed the maximum renodulation 24 months after transplantation. Dry matter yield of all the inoculated plants demonstrated a significant increase over that of the uninoculated plants at the end of five years after transplanting. In L. leucocephala, strain NGR8 gave the maximum response (45% more dry matter yield) in dry matter production while in A. nilotica, strain USDA 3325 showed a 25% increase in total dry matter yield five years after transplantation. Kluwer Academic Publishers, 1996 Acacia nilotica nationallicence biomass nationallicence Leucaena leucocephala nationallicence nitrogenase activity nationallicence nodulation nationallicence soil nitrogen nationallicence Lal Banwari Microbiology and Molecular Genetics Unit, Tata Energy Research Institute, Habitat Place, Lodhi Road, 110 003, New Delhi, India aut Khanna Sunil Microbiology and Molecular Genetics Unit, Tata Energy Research Institute, Habitat Place, Lodhi Road, 110 003, New Delhi, India aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 184/1(1996-03-01), 111-116 0032-079X 184:1<111 1996 184 11104 https://doi.org/10.1007/BF00029280 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00029280 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lal Banwari Microbiology and Molecular Genetics Unit, Tata Energy Research Institute, Habitat Place, Lodhi Road, 110 003, New Delhi, India aut NATIONALLICENCE 700 1- Khanna Sunil Microbiology and Molecular Genetics Unit, Tata Energy Research Institute, Habitat Place, Lodhi Road, 110 003, New Delhi, India aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl// 184/1(1996-03-01), 111-116 0032-079X 184:1<111 1996 184 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer