Effect of postmethanated distillery spentwash on the growth, yield and quality of cluster bean

A field experiment was conducted at Amaravathy sugars, Udumelpet to study the effect of spentwash on cluster bean crop. Results revealed that the treatment applied with spentwash (100% N through post methanated distillery spentwash) increased the yield of clusterbean. Application of PMDSW favoured the yield attributes of clusterbean by enhancing the availability of nutrients. Basal application of PMDSW @20.83 kL ha⁻¹(T₅)recorded the highest plant height, number of internodes per plant and number of leaves per plant than the control.Among the treatments, the maximum crude fibre was recorded in T5 (2.63%) and minimum in T1; the crude protein was maximum in T5 and minimum in T1(control). Thus it indicates that PMDSW application increased the quality when compared to control. The enormous quantities of plant nutrients present in spentwash offers an excellent opportunity to use it as a liquid fertilizer along with irrigation water, thus enabling the farmers to save cost incurred on fertilizers and at the same time achieve higher yields of crops.