Desenvolvimento de aplicativo para dispositivo móvel para calibração de semeadora e pulverizador

Abstract

The presence of information technology in the field has allowed, among several benefits such as increased crop production, better use of the land when planting, more agility in the activities performed in the field, and improved distribution of seeds for planting. With the advances of smartphones and tablets there has been a transformation in mobile communication in various sectors and especially in the rural environment. The development of applications for smartphones can become a simple task when using the App Inventor 2 platform, created by the partnership between Google and Massachusetts Institute of Technology (MIT), which makes it possible to develop applications exclusively for devices that operate with the Android operating system. With the increasing use of smartphones in the rural environment, an opportunity has been found to help farmers and agricultural workers. In order to facilitate the management and operations of both planting and pesticide application activities, the objective of this work was to develop an application for smartphones to calculate the number of seeds per meter, the dosage of fertilizers, and the calibration of the sprayer flow rate. The application was developed in two stages, in the first of which the screens of the application were developed, being an elaboration of the images and the second stage was the development of algorithms. In the initial screen, the user has the options of choosing sprayer, seeder, help, or information. In the seeder option, it is possible to calculate the dosage for large and small seeds as well as the fertilizer dose. And in the sprayer option, it is possible to calculate the average flow rate of nozzles and the volume of spray applied per hectare. The methodology adopted allowed the development of an application of easy interaction and application, besides enabling access to information on how to use it, becoming a useful tool in the calibration of seeders and sprayers.