Biological Nitrogen Fixation Associated with Rice Production: Based on selected papers presented in the International Symposium on Biological Nitrogen Fixation Associated with Rice, Dhaka, Bangladesh, 28 November– 2 December, 1994

Front Matter....Pages i-xvi
Introduction Some comments about a better use of biological nitrogen fixation in rice cultivation....Pages 1-12
Front Matter....Pages 13-13
Rhizobial biofertilizers: the most promising BNF technology for increased grain legume production in Bangladesh....Pages 15-20
Effect of heavy metals on legume- Rhizobium symbiosis....Pages 21-29
Effect of straw incorporation on soil N-pool in submerged rice....Pages 31-42
The use of organic residues in increasing crop production in a wheat—mungbean— T . Aman cropping system on red-brown terrace soils....Pages 43-48
Leguminous green manures in rice-based cropping systems....Pages 49-50
Use of green manuring crops in rice fields for sustainable production in Bangladesh agriculture....Pages 51-64
Prospect of dhaincha ( Sesbania rostrata ) intercropping with T. Aus in a T. Aus—T. Aman cropping pattern....Pages 65-70
Pedology of the rice soils of Bangladesh....Pages 71-79
Front Matter....Pages 81-81
Does Azolla have any future in agriculture?....Pages 83-94
Utilization of Azolla in rice production in West Africa: potentials and constraints....Pages 95-103
Cultivation and uses of Azolla in Egypt....Pages 105-108
Estimation of nitrogen fixation in Azolla —rice association using 15 N isotope dilution....Pages 109-116
Front Matter....Pages 117-117
Prospect and potentiality of cyanobacteria as an alternative source of nitrogen fertilizer in Bangladesh rice cultivation....Pages 119-131
Contribution of cyanobacterization to rice growth and performance under different field stand densities and levels of combined nitrogen....Pages 133-139
Ecological aspects of cyanobacteria from the rice fields of Corrientes (Argentina)....Pages 141-146
Contribution of biological nitrogen fixation to rice production in a Mediterranean rice field....Pages 147-157
Enrichment of indigenous blue—green algal population in rice fields and evaluation of its effect in rice culture....Pages 159-167
Front Matter....Pages 169-169
Abundance and isolation of nitrogen-fixing bacteria from the major rice soils of Bangladesh....Pages 171-179
 Burkholderia vietnamiensis , a new nitrogen-fixing species associated with rice roots, isolated from an acid sulphate soil in Vietnam: plant-growth-promoting effects on rice....Pages 181-190
Front Matter....Pages 169-169
Specificity of root colonization by symplasmata-forming Pantoea agglomerans ....Pages 191-201
Nitrogen fixation by Azospirillum brasilense isolated from rice fields of Bangladesh....Pages 203-207
Front Matter....Pages 209-209
Biotechnological aspects of diazotrophic bacteria associated with rice....Pages 211-223
 Azospirillum phylogeny based on 16S rRNA sequences....Pages 225-229
Increased growth and yield of rice by treating seeds and spraying plants with non-nitrogen-fixing bacteria....Pages 231-242
Back Matter....Pages 243-247