Calibración de DSSAT (Decision Support System for Agrotechnology Transfer) para tres cultivares de maíz (Zea mays L.) en el sur de Nuevo León, México
DOI:
https://doi.org/10.59741/agraria.v8i2.452Keywords:
Maize, genetic coefficients, simulation models, DSSATAbstract
Calibration of DSSAT (Decision Support System for Agrotechnology Transfer) for Three Cultivars of Maize (Zea mays L.) in the South of Nuevo Leon, Mexico. Simulation models are an alternative for prediction of crop behavior and an important research tool to shorten this process, even though this doesn´t replace field experiments. The objective of this assay was to calibrate the DSSAT program (Decision Support System for Agrotechnology Transfer) for three maize cultivars. This work was performed at the experimental station of the Universidad Autónoma Agraria Antonio Narro (UAAAN), located at Navidad, Galeana, N. L. The evaluated cultivars were: AN447, AN388 and A7573, the sowing was performed on May 5 and harvest on October 26, 2007, with a fertilizer dose 60–60–60. The experimental design was a randomized blocks one with three replications. The evaluated variables were: Partial Dry Matter (MSP), Partial Dry Matter of leaf (MSPH), Partial Dry Matter of Stem (MSPT), Partial Dry Matter of Grain (MSPG) and Leaf Area Index (IAF). The genetic coefficients obtained for calibration are: AN447 P1 = 355, P2 = 0.700, P5 = 540, G2 = 430, G3 = 12 and PHINT = 80; AN388 P1 = 375, P2 = 0.500, P5 = 500, G2 = 450, G3 = 11 and PHINT = 75; A7573 = 365 P1, P2 = 0.400, P5 = 500, G2 = 380, G3 = 8 and PHINT = 80. In general, DSSAT may be calibrated for maize and produce acceptable results.
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