Abstract
Lettuce stands out among the most consumed and produced vegetables in Brazil. In a scenario where concerns about water are growing more and more, magnetized water appears as an alternative in irrigation. The objective of the experiment was to evaluate the agronomic performance of lettuce, grown in the field, in the Federal District, under different levels of magnetization applied to irrigation water. The experiment was conducted on private vegetable producing property, in the city of Brazlândia. The crop was subjected to four irrigation treatments with magnetized water, namely: magnetic induction of 0.28 T, 0.229 T, 0.029 T and 0 T (control), with the purpose of evaluating its nutritional and production variables, in the time of harvest. Changes in the levels of chlorophyll, macro, micronutrients, plant production and growth variables were evaluated. The data were subjected to analysis of variance and the means compared using the Tukey test, at a 5% probability level. The analyzes were carried out using the SISVAR program. The studied levels of magnetic induction in irrigation water, such as variable diameter of the frills, fresh mass of the aerial part and productivity differed from each other at a statistical level.
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