Economy in fertilizer nitrogen by its integrated application with sulphitation filter cake on sugarcane

Abstract

Sugarcane cultivar Co 1148 was planted at approx. 57560 three budded setts/ha during spring on a clay loam soil and fertilized with 0, 75, 100 and 150 kg N/ha along with 0, 10, 20 and 30 tonnes/ha fresh sulphitation filter cake at 80% moisture. The combined application of 30 tonnes/ha filter cake and 150 kg N/ha increased the length, population and yield of millable cane by 32·28, 29·26 and 65·6%, respectively, over control without having any effect on brix, sucrose or purity of cane juice. A saving of 75 kg N/ha was obtained, with 10 tonnes/ha filter cake applied with 75 kg N/ha producing cane equal to that of 150 kg N/ha. © 1990.