BARBOSA, R. R.; http://lattes.cnpq.br/3653866675640005; BARBOSA, Rafaela Ribeiro.
Resumen:
This study aimed to verify the efficacy of AquaCrop in estimating the modeling stages for
gliricidia and canafistula cultures in the semi-arid northeast of Brazil. The experiment was
carried out at the National Institute of the Semiarid - INSA in Campina Grande-PB, where two
experiments took place, one for the rainy season and the other in the dry season, both in
2019, and the treatments were used the spacings T1 (1.0m x 1.0m), T2 (1.0m x 0.5m) and T3
(1.0m x 1.5m). There was also an evaluation of the characteristics of the plant seeking to
understand its behavior and growth. The results were determined to simulate total biomass
for both crops through AquaCrop, which generated different results for each treatment that
was calibrated and validated by climate, soil, crop and management variables. Among the
results found in this study, it was observed that the variables such as plant weight and canopy
area showed significant differences between the two crops. The dry matter content was also
evaluated: with a higher percentage for Canafistula, in relation to crude protein, Gliricidia
presented higher values. The T1 treatment for Canafístula and Gliricidia showed a higher
estimate of total biomass among the three treatments. Moreover, the simulation of the
AquaCrop model was satisfactory because it presented excellent results in the simulation for
the biomass of the studied crops.