##plugins.themes.huaf_theme.article.main##
Abstract
In Thua Thien Hue, turmeric is grown on a small scale in households for self-sufficiency. Due to the small area of turmeric cultivation, it has not become a valuable commodity. In addition, cultivating turmeric according to traditional practices has not yet exploited its full potential for productivity and economic efficiency. The study included nitrogen and potassium formulas: 170 kg N + 100 kg K2O; 200 kg N + 150 kg K2O; 230 kg N + 200 kg K2O application for turmeric was conducted. Evaluated the growth, development, quality, productivity and economic efficiency indicators. Research results have determined the appropriate amount of nitrogen and potassium fertilizer for turmeric: 200 kg N + 150 kg K2O on the basis of 2 tons of microbial organic fertilizer + 500 kg of lime + 120 kg of P2O5. This fertilizer formula has good growth, development and quality criteria. Turmeric has the highest actual yield and economic efficiency: 42.8 tons/ha and 273.4 million VND/ha, respectively.