Open AccessPOPULATION AND SPECTRUM OF DROPLETS PRODUCED DURING ELECTROSTATIC SPRAYING AND HYDRAULIC SPRAYING USING AIR ASSISTANCE - DOI: 10.13083/1414-3984.v22n05a02
Author(s) -
Murilo Mesquita Baesso,
Francelino Augusto Rofrigues,
Ronaldo Goulart Magno,
Mauri Martins Teixeira,
Alcir José Modolo
Publication year - 2014
Publication title -
engenharia na agricultura
Language(s) - English
Resource type - Journals
eISSN - 2175-6813
pISSN - 1414-3984
DOI - 10.13083/reveng.v22i5.427
Subject(s) - sprayer , nozzle , spray nozzle , population , randomized block design , factorial experiment , materials science , volume (thermodynamics) , chemistry , engineering , mathematics , mechanical engineering , physics , horticulture , biology , statistics , demography , quantum mechanics , sociology
The droplet population produced during spraying influences the efficiency of pesticide application. It is possible to define a minimum number of droplets per unit area depending on the treatment and product to be applied. This study aimed to evaluate the characteristics of the populations and the spectra of droplets produced during electrostatic and air-assisted spraying. Factors including types of nozzles, spray volume, type of spray and its influence on the percentage coverage and density of droplet population. The experiment was arranged in a 2 x 2 x 2 factorial [two types of nozzles (Jacto JA-4, hollow cone and Jacto AXI-110-04, flat fan nozzle tip), two spray volumes (200 L ha-1 and 400 L ha-1) and two sprayer types (air-assistance in the spraying sleeve boom and electrostatic spraying)] in a randomized block design with four replications. The electrostatic sprayer increased droplet density per cm2 of leaf.