Effect Verification of Liquid Fertilizer Derived from Pig Cadavers on Crop Growth and Soil Properties

Abstract

This study was conducted to investigate the application effect of liquid fertilizer using pig cadavers on potatoand corn cultivations in upland field. Field experiments were designed with control (Cn), liquid fertilizer (LF),inorganic fertilizer (IF), and LF + IF treatments. Crop yields in potato and corn cultivations were higher in theorder of LF + IF≧IF≧LF > Cn treatments. The potato and corn yields in LF + IF treatment were 237% and29% greater than those in Cn treatment, respectively. Following crops harvest, soil status was improved,showing greater soil chemical properties in the LF treated areas compared to those in the Cn treatment. Inaddition, total CO2 fluxes in LF + IF treatment during potato and corn cultivations were significantly increasedcompared with Cn and IF treatments. Therefore, these results suggest that LF application was effective oncrop cultivation and improvement of soil fertility.