Effect of soil worm humus on yield and the main insect pests in bean crop (Phaseolus vulgaris L.)
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Abstract
Red Ferralític soil from December 2000 to March 2001, in the
experimental area of Agronomy Faculty from the Agrarian
University of Havana (UNAH), located in San José de las Lajas,
Havana province, with the objective of evaluating the effect
of various doses of soil worm humus on yield, its components
and plenty of main insect pests in CC-25-9N bean crop variety.
Treatments were: a control group, 4, 6 and 8 t.ha-1 of soil worm
humus made up with residuals of Leucaena leucocephala.
The experimental design was a block selected at random with
four repetitions and four treatments. Samplings to evaluate
the populations of main insect pests were weekly carried out
starting 15 days after seeds germinated. To compare
populational behavior of the main insect pests detected, a
Variance Analysis with bifactorial arrangement was used and
data were transformed according to the fallowing expression x+1,
whereas the aspects related to yield, a Simple Classification
Variance Analysis was employed and data were transformed
according to the expression and means were compared
through Tukey. The main results demonstrated that the highest
yields were achieved with the dosis of 8 t.ha-1, coinciding with
the lowest insect population.
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