Utilization of By-product from Ethanol Factory on Growth, Yield and Yield Components of Maize

Abstract

     This investigation aimed to study the utilization of by-product from ethanol factory on growth, yield and yield components of hybrid maize (var. Seeds Tech 188) planted in Kamphaeng Saen soil series. Experimental design was arranged in Randomized Complete Block Design (RCBD) with 3 replications consisting of 8 treatments. The results revealed that the application of chemical fertilizer (CF) based on soil chemical analysis in combination with spent wash liquor (SWL) of 20 m³/rai and water treatment (WT) of 20 m³/rai (T₈: CF_DOA+SWL_{20 m3}+WT_{20 m3}) gave the highest plant height, husk yield, grain yield and protein in grain which were not different from the application of CF based on soil chemical analysis in combination with SWL of 10 m³/rai and WT of 10 m³/rai (T₇: CF_DOA+SWL_{10 m3}+WT10 m3) and the application of CF based on soil chemical analysis in combination with SWL of 20 m³/rai (T₃: CF_DOA+SWL_{20 m3}). While, the CF_DOA+SWL_{20 m3}+WT_{20 m3} (T₈) gave the highest unhusk yield and total N in grain of maize which were not different from the CF_DOA+SWL_{10 m3}+WT_{10 m3} (T₇), CF_DOA+SWL_{20 m3} (T₃), the application of CF based on soil chemical analysis in combination with WT of 40 m³/rai (T₆: CF_DOA+WT_{40 m3}) and the application of CF based on soil chemical analysis in combination with WT of 20 m³/rai (T₅: CF_DOA+ WT_{20 m3}).