The present work study aimed at evaluating the accuracy of the computerized algorithm included in the TaurusWebs ® software, which allows to calculate the percent of crude protein (% CP) in the dry matter of grasses, from images of grasslands taken by a drone with Red Green Blue – RGB- cameras. The %PC measurements calculated by the algorithm were compared to a reference, Near Infrared Reflectance Spectroscopy (NIRS), from the Corpoica (Agrosavia) Laboratory calibrated for grasses. Forty-two samples were taken for NIRS, 18 of high tropic grasses in Cundinamarca: kikuyo, Pennisetum clandestinum; false poa, Holcus lanatus; Brazilian grass, Phalaris arundinacea and 24 from the low tropics in Tolima, Colombia: pangola, Digitaria decumbens; pará, Brachiaria mutica; Bermuda, Cynodon dactylon and coloswana, Bothriochloa pertusa. The results of the NIRS were compared against the evaluations ...

The present work study aimed at evaluating the accuracy of the computerized algorithm included in the TaurusWebs ® software, which allows to calculate the percent of crude protein (% CP) in the dry matter of grasses, from images of grasslands taken by a drone with Red Green Blue – RGB- cameras. The %PC measurements calculated by the algorithm were compared to a reference, Near Infrared Reflectance Spectroscopy (NIRS), from the Corpoica (Agrosavia) Laboratory calibrated for grasses. Forty-two samples were taken for NIRS, 18 of high tropic grasses in Cundinamarca: kikuyo, Pennisetum clandestinum; false poa, Holcus lanatus; Brazilian grass, Phalaris arundinacea and 24 from the low tropics in Tolima, Colombia: pangola, Digitaria decumbens; pará, Brachiaria mutica; Bermuda, Cynodon dactylon and coloswana, Bothriochloa pertusa. The results of the NIRS were compared against the evaluations ...

El objetivo del presente trabajo fue comparar los resultados obtenidos mediante el algoritmo de análisis de imágenes RGB - 2ARGB®- desarrollado para el cálculo de macrominerales, frente a los obtenidos con la técnica de espectroscopía de inducción de plasma de argón -EIP-. En la prueba se midió el contenido de cinco macrominerales, calcio (Ca), fósforo (P), potasio (K), magnesio (Mg) y azufre (S) en la materia seca de siete especies de gramíneas tropicales en tres pisos térmicos en Colombia. Para la estimación de los macrominerales a través del algoritmo se empleó un dron Dji Mavic Mini 1 con cámara 2.7 K, HD-RGB, usada como sensor remoto a 20 m de altura. Se tomaron imágenes de las mismas parcelas que se analizaron con la técnica estándar de EIP del laboratorio de Agrosavia Tibaitatá, Colombia. La prueba estadística de comparación de medianas de Wilcoxon no encontr...