Determination of Biological Nitrogen Fixation Induced N₂O Emission from Arable Soil by Using a Closed Chamber Technique

Table 1

Number of nodules at different plant growth stages.

Number of nodules plant^−1 (average of three plants)
R2	R4	R8
10.67±1.86^a	39.67±2.72^b	16±1.15^c