Partial substitution of nitrate by chloride in fertigation recipes allows for lower nitrate input in hydroponic lettuce crops.

ABSTRACT: The management of nitrogen (N) fertilization is of fundamental importance in hydroponics. To reduce the supply of nitrate (NO₃ ^-) in fertigation recipes for Batavia lettuce crops grown in closed hydroponics, partial replacement of nitrate by chloride (NO₃ ^-/Cl^-) at different ratios but with the same equivalent sum was experimentally tested. The experiment included four nutritional treatments in the replenishment nutrient solution, particularly T1; 0.7 mM Cl^-/19 mM NO₃ ^-, T2; 2 mM Cl^-/17.7 mM NO₃ ^-, T3; 4 mM Cl^-/15.7 mM NO₃ ^- and T4; 6 mM Cl^-/13.7 mM NO₃ ^-. The results showed that reducing nitrate supply co

SUBMITTER: Neocleous D 

PROVIDER: S-EPMC11304451 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature