Corrector of Zinc and Manganese deficiencies, for foliar application on all crops. Product suitable for preventive and curative treatments of zinc and manganese deficiencies in citrus, fruit trees, and other crops, thanks to the high content of these elements, their balance, and their presentation as lignosulfates. Tritan Agri MZ LS prevents physiopathies caused by deficiencies of these elements (chlorosis, flower abortion, premature fruit drop, etc.). Curative treatments restore the normal physiological activity of the plant with 1 or 2 applications depending on the severity of the deficiency.