Uniformidade de irrigação em sistemas autopropelido e deslocamento linear móvel na cultura da cana-de-açúcar

Abstract

ABSTRACT

Sugarcane is considered an important monoculture due to its potential as a raw material for sugar and ethanol production. Because of its characteristics, it is a culture that requires water assistance to obtain high productivity per cultivated area when placed in unfavorable climatic conditions for its development. Currently, irrigation systems have been taking space in the market with the goal of distributing water on the fields in order to require the crop's water needs in the form of drops, this choice takes into account several variables, such as climate, topography, soil, culture, hand labor, among others. It is ideal to periodically analyze the systems and their implements that can negatively influence the uniformity and distribution of precipitated water. Based on the research carried out, this work aims to evaluate the uniformity and efficiency of two irrigation systems. The equipment was selected in Linear Sizing having about 300 meters with two repetitions and three different self-propelled belonging to Usina Santa Clotilde S/A, in the region of Rio Largo, Alagoas. In the test, collectors were distributed in the search to compare which irrigation systems would stand out better in terms of distribution quality; Using two different effluents in the systems for subsequent statistical analyses; Analyzing the water application uniformity capacity of the sprinkler, operating in different edaphoclimatic conditions. The equipment in linear dimensioning presented satisfactory CUC results, being 96.67% and 80.06%, respectively. CUD (60.53% and 55.81%) and CUE (75.98% and 76.73%) were considered statistically reasonable, as they presented average condition. The self-propelled that stood out the most was IrrigaBrasil with a CUD of 68.14%.

Keywords: Sprinkler irrigation; Saccharum officinarum; Water distribution and efficiency.