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How many kilograms of nitrogen can 1 mu of soybeans fix? A full analysis of nitrogen fixation capacity
1. How much nitrogen can 1 mu of soybeans fix? Field trials have determined that 1 mu of soybeans can fix about 8 kilograms of nitrogen, equivalent to applying 18 kilograms of urea. Because soybeans have symbiotic nitrogen-fixing rhizobia, through the action of rhizobia they can fix gaseous nitrogen from the air, so generally