The Effects of Rape Residue Mulching on Net Global Warming Potential and Greenhouse Gas Intensity from No-Tillage Paddy Fields

Table 3

GWP, net GWP, rice grain yield, and GHGI of different residue mulching treatments.

Treatments	GWP/; (kg CO2 equivalents ha^−1)	Net GWP/; (kg CO2 equivalents ha^−1)	Rice grain yield/; (kg ha^−1)	GHGI/; (kg CO2 equivalents kg^−1 grain yield)
0 RRM	14560±1259^c	8863±1789^a	7764±190^a	1.14^a
3000 RRM	15800±1920^b	5936±1264^ab	8062±179^a	0.74^b
4000 RRM	17898±1648^ab	4433±477^c	8835±224^a	0.50^c
6000 RRM	18904±2789^a	2583±436^d	8134±150^a	0.32^d

Different letters in a column mean significant differences at the 5% level. Values are the means ± SD, 𝑛=3.