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The American Biology Teacher. 2014; 769589–594 doi: https://doi.org/10.1525/abt.2014.76.9.4
Published: 01 November 2014
... ideal. Rhizobia symbiosis mutualism parasitism photosynthesis nitrogen fixation Label each pot with a plot ID number and treatments (e.g., no. 1 −N +Rhiz). Fill pots with soil (4/5 full). Add 6 g of fertilizer pellets on plots with +N treatment. Place each pot on an individual...