a and b shows LAI and Rs evolution for the years 2011 and
2012, respectively. LAI values (m
2
m2
) were higher in 2011 than in
2012 reaching maximum values of 3.5 m2
m2
and 2.8 m2
m2
,
respectively. In addition in 2011, maximum LAI showed similar
values in P and I sites while in 2012 LAI values in P sites were
always higher than those in the I sites. The standard deviation of
the measurements showed the maximum values during the last
vegetative stages being higher in the P than in I sites (2011:
0.43 m2
m2
in P sites and 0.24 m2
m2
in I sites; 2012: 0.43 in P
sites and 0.33 m2
m2
in I sites).
LAI increased sharply from VE to V18 in 2011 and to V11 in 2012.
In I sites, LAI started increasing around a month later than in the P
sites, that is, when the green canopy was high enough to invade the
space between the rows. In 2012, LAI remained constant during the
first reproductive stages decreasing slightly during the last
reproductive stages before harvest.
The Rs (mmol m2
s
1
) dynamics was similar in the P and the I
sites, increasing from the first stages of corn growth (VE–V6)
to V13–V14 in 2011 and to V11 in 2012 and decreasing slowly
through the reproductive stages (R1–R6). Values in I sites are
slightly lower than those in P sites reaching similar values to bare
soil after harvest. Rs in bare soil plots remained approximately
constant during the growing period reaching values around
a and b shows LAI and Rs evolution for the years 2011 and2012, respectively. LAI values (m2m2) were higher in 2011 than in2012 reaching maximum values of 3.5 m2m2and 2.8 m2m2,respectively. In addition in 2011, maximum LAI showed similarvalues in P and I sites while in 2012 LAI values in P sites werealways higher than those in the I sites. The standard deviation ofthe measurements showed the maximum values during the lastvegetative stages being higher in the P than in I sites (2011:0.43 m2m2in P sites and 0.24 m2m2in I sites; 2012: 0.43 in Psites and 0.33 m2m2in I sites).LAI increased sharply from VE to V18 in 2011 and to V11 in 2012.In I sites, LAI started increasing around a month later than in the Psites, that is, when the green canopy was high enough to invade thespace between the rows. In 2012, LAI remained constant during thefirst reproductive stages decreasing slightly during the lastreproductive stages before harvest.The Rs (mmol m2s1) dynamics was similar in the P and the Isites, increasing from the first stages of corn growth (VE–V6)to V13–V14 in 2011 and to V11 in 2012 and decreasing slowlythrough the reproductive stages (R1–R6). Values in I sites areslightly lower than those in P sites reaching similar values to baresoil after harvest. Rs in bare soil plots remained approximatelyconstant during the growing period reaching values around
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