USO DE HERRAMIENTAS AGRÍCOLAS DE PRECISIÓN PARA EL ANÁLISIS DEL ABASTECIMIENTO DE AGUA DE ARROZ RIEGO POR INUNDACIÓN

Resumen

Increasing water use efficiency, in addition to maximizing the productivity of agricultural crops, is of great importance in the current context of preserving water resources. The present study aimed to evaluate the efficiency of precision agriculture tools for analyzing the water supply of flood-irrigated rice, and was carried out in a 33 hectare commercial crop plot on a rural property in Cachoeira do Sul - RS. The assessment was carried out by mapping the water input time, as well as mapping the VARI vegetation index, through the use of RPAS and geoprocessing software. The results obtained are a reduction in the yield components and rice productivity from 16,645.50 to 12,993.69 kg ha^-1, as the input of irrigation water into the field is delayed in the interval from 24 h to 96 h from the start of irrigation. The VARI mapping indicated that there is a positive linear correlation between the index values and rice productivity. The use of geotechnology has proven to be a very effective tool for analyzing rice irrigation.