Effect of Formulated Fertilization on Growth and Productivity of Coix in Xingren County

Effects of varied fertilizations on agronomic characteristics, dry matter accumulation, nutritional content, productivity and yield traits of coix in Xingren county, Guizhou was studied using a "3414" regression design. The results showed that the yield of coix were improved by the formulated N-P-K fertilizations as compared with CK (Treatment 1). The agronomic properties of the coix under the 20-5-15 and 20-10-7.5 formulations were better than the other 12 treatments. Among all treatments, the 20-5-7.5 formulation rendered the greatest yield, while the 20-5-15 exhibited the most significant effect on the accumulations of dry matters and nutrients. Based on a quadratic regression analysis, the fertilization with 16.45 kg N/667 m², 9.53 kg P₂O₅/667 m² and 14.49 kg K₂O/667 m² was recommended for coix cultivation in Xingren county.