Katı ve sıvı olarak uygulanan humik asitin çilek bitkisi yapsak örneklerindeki N, P, K, Ca, Mg, Fe, Zn, Mn ve Cu kapsamları üzerine etkileri sera denemesinde belirlenmiştir. Denemede humik asitle beraber 20 kg/da N, 10 kg/da $P_2O_5$ ve 40 kg /da $K_2O$ düzeyindeki kimyasal gübre damla sulama ile uygulanmıştır. Katı humik asitin (% 85 humik asit) 0, 10, 20, 30, 40 kg/da uygulamaları dikimden önce; sıvı humik asitin (% 15 humik asit) 0, 250, 500, 750, 1000 ml/da/ay düzeyleri damla sulamayla verilmiştir. Katı ve sıvı humik asit uygulamalarının yaprak örneklerinin N, P, K, Ca, Mg, Fe, Mn ve Cu kapsamlarına, kaü formdaki humik asitin yaprağın Zn kapsamına önemli bir etkisinin olmadığı; sıvı humik asit uygulamasının yaprak örneklerinin Zn kapsamına istatistiki olarak önemli etkisinin olduğu ve Zn kapsamının azalttığı belirlenmiştir.

The aim of this research study is to investigate the effect of humic acid as liquid and solid on N, P, K, Ca, Mg, Fe, Zn, Mn and Cu nutrient contents of leaf samples of strawberry plant under greenhouse conditions. The experiment was designed in randomized block design with four replications for applying humic acid of two years. Together with humic acid, 20 kg/da N, 10 kg/da $P_2O_5$ and 40 kg/da $K_2O$ was applied by drip irrigation system. Solid humic acid that contains 85 % humic acid, were applied in the amount of 0,10, 20, 30 and 40 kg/da before planting. Liquid hutnic acid that contains 15 % humic acid, were applied by drip irrigation system at the concentration of 0, 250, 500, 750 and 1000 ml/da/month. According to the results obtained, N, P, K, Ca, Mg, Fe, Mn and Cu contents of the leaves were not affected significantly by the applications of solid and liquid humic acid, and Zn content of the leaves with applied solid fomis of humic acid. Liquid humic acid source has a significant effect on the Zn content of the leaves causing a decrease in the Zn content.