Effect of Gamma-HCH and Graded Levels of Nitrogen on Yield and Quality of Sugarcane on a Calciorthent

Field experiments were conducted on a calcareous alluvial sandy loam soil (Calciorthent) to study the effect of gamma-HCH and graded level of nitrogenous fertilizer in sugarcane. The use of gamma-HCH accentuated release of ammoniacal nitrogen and inhibited nitrification. Application of nitrogenous fertilizer resulted in more available N in soil, significant increase in cane yield and uptake of N with the application of gamma-HCH @ one kg a.i. ha⁻¹ along with nitrogenous fertilizers applied as basal or in split doses. Application of N in three splits was significantly superior to two splits or whole amount as basal. Sugar in cane juice was not affected significantly either with gamma-HCH or graded levels of N. Commercial cane sugar (CCS) per hectare followed almost similar trend as that of cane yield.