Definición de dosis de nitrógeno, fósforo y potasio para una máxima producción del maíz híbrido Advanta 9313 mediante el diseño central compuesto

Abstract

The absence of knowledge regarding the intervals of macro-nutrients such as nitrogen (N), phosphorus (P) and potassium (K) applied to corn is one of the flaws that do not allow us to take advantage of the potential of certified seeds, which is complicated even more so when the appropriate experimental designs are not used to establish the said intervals. Faced with this situation, this trial was developed with an incomplete second-order factorial arrangement called central compound design (DCC), in order to identify macro-nutrient intervals for greater corn production. A randomized complete block distribution was used in which 15 formulations (treatments) of N-P-K were tested with three repetitions of each one and the dry grain yield was evaluated as a response variable. The data were evaluated by means of analysis of variance to detect linear and quadratic effects, the respective response surfaces and contour graphs were obtained and a second order model was fitted. It was found that the highest corn yields, between 10 to 11 t/ha, were obtained when applying between 110 to 140 kg/ha of nitrogen, from 50 to 70 kg/ha of phosphorus and from 100 to 140 kg/ha of potassium; in addition to corroborating the goodness of the DCC when the limits of experimental operation of the study factors are known.

Yield Predictions of Four Hybrids of Maize (Zea mays) using Multispectral Images Obtained from RPAS in the Coast of Peru

“…One of the advantages of using RPAS in the monitoring of experimental plots or crops is that it can be remotely and generates lower maintenance costs and acquisition of high-resolution images [51]. Hybrid Ad-vanta9313 (9.91 t/ha) presented the highest yield at 51 DAS, a value higher than the national average of 4.77 t/ha [52] and similar to those reported by Gavilánez-Luna & Gómez-Vargas [53]. This superiority in yield performance could be due to its wide adaptability to the maize areas of Peru and its good production stability [54].…”

Yield Predictions of Four Hybrids of Maize (Zea mays) Using Multispectral Images Obtained from UAV in the Coast of Peru

“…One of the advantages of using UAVs in the monitoring of experimental plots or crops is that they can be controlled remotely and generates lower maintenance costs and acquisition of high-resolution images [52]. Hybrid Advanta9313 presented the highest yield (9.91 t/ha) at 51 DAS, a value higher than the national average of 4.77 t/ha [53] and similar to those reported by Gavilánez-Luna & Gómez-Vargas [54]. This superiority yield performance could be due to its wide adaptability to the maize areas of Peru and its good production stability [55].…”

Explorando nuevas estrategias para la Gestión de Tecnología e Innovación en las Unidades Productoras Agrícolas de la Provincia de Cotopaxi

“…El Análisis de Varianza (ANOVA) evalúa la importancia de uno o más factores al comparar las medias de la variable de respuesta en los diferentes niveles de los factores. La hipótesis nula establece que todas las medias de la población (medias de los niveles de los factores) son iguales mientras que la hipótesis alternativa establece que al menos una es diferente 39 .…”