Impact of different tillage systems on the nutritional physiology of wheat crop (Triticum durum L.)
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Abstract
experimental farm, belonging to the Institute of Natural
Resources and Agrobiology of Seville (CSIC), Spain,
in order to evaluate the physiological responses elicited
by traditional (LT) and conservation tillage (LC) on the
nutritional status of wheat crop (Triticum durum L.) in
long-term experiments on a sandy clay loam Xerofluvent
soil. The experimental area has an agrometeorological
station to record the minimum, average and maximum
values of different variables, considering temperatures and
rainfall in this work. A randomized block design with three
replicates per treatment was used for the study; each block
had a surface area of 240 m2. At the experimental stage,
crop nutrient extraction was assessed on the grains and leaf
mass of 10 randomly selected plants per treatment. Nitrogen
was determined by Kjeldahl method whereas the other
elements by plasma atomic emission spectroscopy (ICP).
From the physiological point of view, there are significant
differences on the extraction of nutrients absorbed by the
crop, ensuring that plants had no nutritional problems at
the conservation tillage, with an increased total dry mass
production. No significant differences were detected
between both treatments with respect to yield, so that
conservation tillage is more appropriate when taking into
account its environmental benefits.
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