Maize (Zea mays L.) was sowed in mid-May in 2011 and late-April in 2012. In both cases the plants were irrigated 3 h per week.
V. Cicuéndez et al. / Agriculture, Ecosystems and Environment 212 (2015) 158–167 159
In all the study area including the bare soil plots, primary tillage
consisted of moldboard plowing to an average depth of 35 cm
followed by one disk harrowing to a depth of 10 cm for the seedbed
preparation. While performing the latter operation, rabbit
compost at a rate of 50–60 Mg ha
1
was incorporated to the soil
as manure amendment. Prior to sowing, maize seeds (variety NK
factor, Italy, purity 98%) were treated with fludioxonil (2.4%) and
metalaxil-m (1%). In the maize plots, seeds were placed in rows
spaced 70 cm apart and having in-row distance of 20 cm. The drill
planter was equipped with fluted coulters and double disk furrow
openers. Herbicide was banded behind the planter and it was also
applied to the bare soil area.
The main phenological stages according to Iowa State
University (Hanway, 1971) were identified by visual inspection
and recorded during the sampling campaigns. The Table 1 shows
the Day of the Year (DOY) corresponding to each phenological stage
for both years. Maize phenology is generally divided into the
vegetative and the reproductive stages (Hanway, 1971; Viña et al.,
2004). Thus, in this research the growing period has been divided
into the corresponding stages. The vegetative stages are charac-terized by structural changes and the reproductive stages are
characterized by biochemical changes
Maize (Zea mays L.) was sowed in mid-May in 2011 and late-April in 2012. In both cases the plants were irrigated 3 h per week.V. Cicuéndez et al. / Agriculture, Ecosystems and Environment 212 (2015) 158–167 159In all the study area including the bare soil plots, primary tillageconsisted of moldboard plowing to an average depth of 35 cmfollowed by one disk harrowing to a depth of 10 cm for the seedbedpreparation. While performing the latter operation, rabbitcompost at a rate of 50–60 Mg ha1was incorporated to the soilas manure amendment. Prior to sowing, maize seeds (variety NKfactor, Italy, purity 98%) were treated with fludioxonil (2.4%) andmetalaxil-m (1%). In the maize plots, seeds were placed in rowsspaced 70 cm apart and having in-row distance of 20 cm. The drillplanter was equipped with fluted coulters and double disk furrowopeners. Herbicide was banded behind the planter and it was alsoapplied to the bare soil area.The main phenological stages according to Iowa StateUniversity (Hanway, 1971) were identified by visual inspectionand recorded during the sampling campaigns. The Table 1 showsthe Day of the Year (DOY) corresponding to each phenological stagefor both years. Maize phenology is generally divided into thevegetative and the reproductive stages (Hanway, 1971; Viña et al.,2004). Thus, in this research the growing period has been dividedinto the corresponding stages. The vegetative stages are charac-terized by structural changes and the reproductive stages arecharacterized by biochemical changes
การแปล กรุณารอสักครู่..
