Abstract:
The increase in the
concentration of greenhouse gases in the
Earth’s atmosphere, especially that of CO2,
is a major concern because it is the main
source leading to global warming, and its
impact on climate change is still widely
studied. The intensity and frequency of
drought and flooding increase due to the
change in climate, which has a negative
impact on crop productivity and food
security. The aim of this paper was to
demonstrate the role of corn in carbon
sequestration based on plant biomass and
soil organic carbon accumulation. We
presented the main factors that contribute to
carbon sequestration and concrete examples
regarding the capacity of corn hybrids
created at National Agricultural Research
and Development Institute (NARDI)
Fundulea, as well as aspects regarding the
importance of soil tillage and fertilisation. In
contrast to genotypes in which this ratio was
lower, maize genotypes that demonstrated a
rise in the root:stem ratio under drought
stress conditions produced more biomass,
suggesting that the roots of these genotypes
can grow at water potentials where stem
growth is inhibited, which are attributes that
also prove their good potential for carbon
sequestration under climate change
conditions. The organic carbon content in the
superficial soil layer decreased with the
intensification of the degree of soil
mobilisation (9.95% when working the soil
with the chisel, 17.91% for ploughing), but
fertilisation had a beneficial effect. The
biomass was higher than that of the
unfertilised soil. This means that a higher
carbon input has a positive influence on the
carbon stock in the soil.
