http://lattes.cnpq.br/1292290053568916; NASCIMENTO, Joab Josemar Vitor Ribeiro do.
Résumé:
In Brazil, planted area with millet (Pennisetum glaucum) is estimated to be over two
million hectares. It is a drought resistant crop, but it also responds well to irrigation and
consortium practices with Fabaceae species. Thus, the objective of this work was to
evaluate the effect of different irrigation slides with the residual water in millet culture
in a consortium with lablab bean (Dolichos lablab), under field conditions, on brazilian
semiarid. The experiment was conducted in the municipality of Frei Martinho-PB. Two
experimental designs were adopted: i) for the plant, the randomized block design was
used, with plots sub-divided into space (5x2x2 scheme), with five slides (40, 60, 80, 100
and 120% of available water), In the millet consortium with the lablab bean (with and
without) and with two cultivation cycles (1st and 2nd cycles) in the sub-plot, with 4
replicates; ii) for the soil related characteristics, similar to the first one, with an increase
of sampling time in the subplot (3 field collections). Irrigation with residual water
influenced the production of millet biomass. The highest growth, productivity and
photosynthetic activity of millet were observed in the first crop cycle. The consortium
with lablab did not affect the growth and production of millet. The maximum yields of
millet biomass (55,087 kg GM / ha and 11,117 kg DM / ha) were corrected in 120% of
the available water. The greater efficiency of the use of water in the smallest blade of
applied water. In the soil, phosphorus and potassium content decreased. However the
sodium and the pH increased. There was no change in the soil organic carbon content.
