Effect of bioactive products in biofertilized bean (Phaseolus vulgaris L.) plants
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Abstract
ensure culture productivity, reducing chemical fertilizers
and cost. Azofert® is a bioprepared composed by rizobia
strains, with a positive effect on biological nitrogen fixation.
Biobras-16 and Quitomax are natural bioactive products,
considered as biostimulants which help plant to face various
kinds of stresses and increase yields; however there is no
information about the effect of the application of these
biostimulants to seeds before biofertilizer inoculation on
bean crop. The objective of this work was to determinate
the Biobras 16 and Quitomax effect on nodulation and
growth of common bean biofertilized with Azofert®. Two
concentrations of Quitomax and Biobras-16 were applied on
seeds the day before sowing and with Azofert® at the sowing
moment, then they were put on Ferralític Red Lixiviated
típic éutrico soil. 35 days after sowing were determined in
ten plants by treatment: number and dry weight of nodules,
shoot and root length and dry weight. Determination of leaf
chlorophyll, nitrogen and phosphorus were also made. The
results showed that application of specific concentration
of Biobras-16 and Quitomax plus Azofer®t inoculation;
stimulate, in a general way, the growth of plants; mainly
with Biobras-16, which also increased leaf chlorophyll and
nitrogen contents.
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