Manejo da irrigação para produção de minimilho através de evapotranspiração.

Abstract

It was evaluated of depth irrigation for production the baby corn, based on class pan A evaporation and applied when the evapotranspiration reached the follow the accumulated values: 15 mm, 30 mm, 45 mm e 60 mm. The statistical model was outlinement completely with four treatments, and with five replications, and the averages as well as compared considering 5% of probability according to the Tukey test and the regression analysis. Five plants were selected for analysing the production: number of ear by plant (NEP), height of insertion of the first ear (HIFE ), lenght of the ear with and without straw (LEWOS), diameter of the ear with and without straw (DEWOS), mass of the ear with and without straw (MEWOS), number of the line of grains by ear (NRGE ) and number of ear, accomplishing 360 g. The results showed significant differences for the HIFE , LEWOS, DEWOS, MEWOS, NLGE and number of ear that accomplishing 360 g. For production results, how much bigger the depth irrigation and the greater the application frequency, greater the NEP, HIFE, NRGE and number of ear that do 360 g and minor LEWOS, DEWOS, MEWOS. The best comercial results were recorded whit 15 mm when using of 18% of ear. The scheduling irrigation for baby corn must be carried out whit application when the crop evapotranspiration indicates 15 mm e 30 mm. accumulated values It could also be understood whit this trial that greater values cause reduction on productivity.