Understanding the Impact of the Intercropping System on Carbon Dioxide (CO₂) Emissions and Soil Carbon Stocks in Limpopo Province, South Africa

Table 4

Carbon dioxide emission efficiency (CEE) of cowpea in intercrop and sole systems at Syferkuil and Ofcolaco during the 2018/19 and 2020/21 cropping seasons.

Treatments	Syferkuil 2018/19	Syferkuil 2020/21	Ofcolaco 2020/21
Cowpea sole	0.83^a	0.65^a	0.49^b
Cowpea-intercrop with Titan	0.69^ab	0.53^ab	0.84^a
Cowpea-intercrop with NS551	0.61^b	0.51^b	0.74^a
Cowpea-intercrop with Avenger	0.50^b	0.41^b	0.66^ab
Cowpea-intercrop with Enforcer	0.50^b	0.41^b	0.63^ab
Grand mean	0.63	0.50	0.67
≤ 00.5	∗∗	∗∗	∗∗