The objective of this study was to evaluate the effect of the homeopathic solution Ammonium Carbonicum in two dynamizations CH3 and CH30 on NO-3 leaching. The early hypothesis was that those homeopathic solutions would act upon soil microbiota optimizing the use of N by the plant. This study was conducted in greenhouse and samples of the A horizon of a very clayey typic dystroferric Red Latosol, 00.15m, situated on the UFLA campus were utilized. The soil columns were sowed with corn (Zea mays L.) and were 0.20 x 0.20 m. Irrigation and leached volume measurement was performed daily. The application of the homeopathic treatments was accomplished via irrigation. The analyses of the leachate were done twice a week. In the leachate, the contents of NO-3 and NH+4 were measured. After 93 days, the columns were sectioned in 0.05-m layers and the samples were analyzed in relation to fertility, including NO-3 , NH+4 and total N. The experimental design was completely randomized with three replicates, in a double-blind scheme with a placebo. The effect of the homeopathic solution in minimizing NO-3 leaching was not significant in the conditions of this study.
Ammonium Carbonicum; organic agriculture; nitrate
