Tewfike,, T. (2000). EFFECT OF DUAL BIOFERTILIZATION, BIOGAS MANURE AND MINERAL FERTILIZER ON GUAR PLANTS [Cyamopsis tetragonoloba (L.) TAUB.]. Journal of Agricultural Chemistry and Biotechnology, 25(10), 6481-6492. doi: 10.21608/jacb.2000.259826
T. A. Tewfike,. "EFFECT OF DUAL BIOFERTILIZATION, BIOGAS MANURE AND MINERAL FERTILIZER ON GUAR PLANTS [Cyamopsis tetragonoloba (L.) TAUB.]". Journal of Agricultural Chemistry and Biotechnology, 25, 10, 2000, 6481-6492. doi: 10.21608/jacb.2000.259826
Tewfike,, T. (2000). 'EFFECT OF DUAL BIOFERTILIZATION, BIOGAS MANURE AND MINERAL FERTILIZER ON GUAR PLANTS [Cyamopsis tetragonoloba (L.) TAUB.]', Journal of Agricultural Chemistry and Biotechnology, 25(10), pp. 6481-6492. doi: 10.21608/jacb.2000.259826
Tewfike,, T. EFFECT OF DUAL BIOFERTILIZATION, BIOGAS MANURE AND MINERAL FERTILIZER ON GUAR PLANTS [Cyamopsis tetragonoloba (L.) TAUB.]. Journal of Agricultural Chemistry and Biotechnology, 2000; 25(10): 6481-6492. doi: 10.21608/jacb.2000.259826
EFFECT OF DUAL BIOFERTILIZATION, BIOGAS MANURE AND MINERAL FERTILIZER ON GUAR PLANTS [Cyamopsis tetragonoloba (L.) TAUB.]
Agriculture Botany Department (Agriculture Microbiology), Faculty of Agriculture, Moshtohor, Benha Branch, Zagazig University, Egypt.
Abstract
Two field experiments were conducted in June 1997 and 1998 to study the effect of dual inoculation with Rhizobium as symbiotic N2-fixer and Azospirillum lipoferum as asymbiotic N2-fixer, biogas manure and mineral fertilizer on nodulation, N2-ase activity and yield of guar plants [Cyamopsistetragonoloba ( L.) Taub.]
Investigation results showed that, guar seeds application with dual inoculation of Rhizobium and Azospirillum lipoferum and provided with half dose of biogas manure (20 kg N/fed), gave the highest values of bacterial densities in soil rhizosphere, CO2 evolution, N2-ase activity, nodulation and guar seed contents of total carbohydrates and guar gum.
Dual inoculation combined with half dose of inorganic nitrogen or half dose of organic nitrogen (20 kg N/fed) increased all values than combination with full dose (40 kg N/fed) of each inorganic nitrogen or organic nitrogen fertilizers.
Also, individual Rhizobium inoculation supplied with 40 kg N/fed organic nitrogen or inorganic nitrogen increased the values of all treatments than individual inoculation with dual inoculation received the full dose of organic or inorganic nitrogen.
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