Nitrogen availability is one of the most critical factors that limits
plant productivity. The largest reservoir of nitrogen is the atmosphere,
but this gaseous molecular nitrogen only becomes available to plants
through the biological nitrogen fixation process, which only prokaryotic
cells have developed. The discovery that microbes were providing fixed
nitrogen to legumes and the isolation of the first nitrogen-fixing
bacteria occured at the end the 19th Century, in Louis Pasteur's time.
We are now building on more than 100 years of research in this field and
looking towards the 21st Century. The International Nitrogen Fixation
Congress series Started more than 20 years ago. The format of this
Congress is designed to gather scientists from very diverse origins,
backgrounds, interests and scientific approaches and is a forum where
fundamental knowledge is discussed alongside applied research. This
confluence of perspectives is, we believe, extremely beneficial in
raising new ideas, questions and concepts.