Field experiments were conducted to study file effect of organic manures rtz.. green manures, green leaf manures, pressmud and farm yard manure on cane and sugar yield of variety COC 85061 during early season of 1993 and 1994 ill Sugarcane Research Station. Melalathur, Vellore district of Tamil Nadu with tile nutrient status of low. medium and medium availability of N,P and K respectively. Results revealed that in situ incorporation of Crotolaria juncea with 175:63:113 kg of NPK ha~(-1) application registered maximum cane and sugar yield of 125 and 15.8 t ha~(-1) respectively. It was 14 per cent higher yield than the treatment with inorganic fertiliser of 225:63:113 NPK ha~(-1) application.
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