Utilization of spent wash liquor and treated waste water from ethanol factory on growth and yield of sugarcane planted in Kamphaeng Saen soil series

Abstract

A field experiment was carried out to investigate the utilization of spent wash liquor (SWL) and treated waste water (TWW) from ethanol factory on growth and yield of sugarcane (var. Kamphaeng Saen 01-4-29) planted in Kamphaeng Saen soil series. The experimental design was arranged in randomized complete block (RCB) with three replications and consisted of 11 treatments. The results revealed that the application of chemical fertilizer (CF) based on soil chemical analysis in combination with SWL of 20 m³/rai and TWW of 20 m³/rai (CF_DOA+SWL_{20 m3}+TWW_{20 m3}) provided the highest height, stalk height and concentrations of N, P and K in stalk which were not significantly different from the applied with CF based on soil chemical analysis in combination with SWL of 10 m³/rai and TWW of 10 m³/rai (CF_DOA+SWL_{10 m3}+TWW_{10 m3}), the application of CF based on soil chemical analysis in combination with SWL of 20 m³/rai (CF_DOA+SWL_{20 m3}) and the application of CF based on soil chemical analysis in combination with SWL of 40 m³/rai and TWW of 40 m³/rai (CF_DOA+SWL_{40 m3}+TWW_{40 m3}). Further, the CF_DOA+SWL_{20 m3}+TWW_{20 m3} provided the highest sugar yields which was not significantly different from the CF_DOA+SWL_{10 m3}+TWW_{10 m3} and the CF_DOA+SWL_{20 m3}.