Abstract
Sugarcane is the only sugar yielding and economically important crop in Bangladesh. Although, it is a good source of sucrose, alcohol and organic matter waste, soil fertility is declining in sugarcane growing areas. Considering the facts, a field study was carried out during 2014-2015 cropping season to evaluate the impacts of integrated use of different organic and chemical nutrients on the quality of sugarcane. Seven treatments were comprised in this experiment (T1 = Control, T2 = 165:55:120:30:10:2.5:4 kg NPKSMgZnB ha-1, T3 = Poultry Litter (PL) @ 5 t ha-1 + 95:51:87:9:10:2.5:4 kg NPKSMgZnB ha-1, T4 = Cow Dung (CD) @ 15 t ha-1 + 36:52:60:17:10:2.5:4 kg NPKSMgZnB ha-1, T5 = Press Mud (PM) @ 15 t ha-1 + 10:50:43:0:10:2.5:4 kg NPKSMgZnB ha-1, T6 = Mustard Oil Cake (MOC) @ 0.5 t ha-1 + 140:54:115:25:10:2.5:4 kg NPKSMgZnB ha-1 and T7 = GM (Green Manure) @ 5 t ha-1 + 140:53:100:28:10:2.5:4 kg NPKSMgZnB ha-1). The experiment was carried out in a Randomized Complete Block Design (RCBD) with three replications. Results of cane quality parameters, the treatment T3 (PL @ 5 t ha-1 + 95:51:87:9:10:2.5:4 kg NPKSMgZnB ha-1) recorded the highest brix (20.9 %), pol in cane (14. 9%) and sugar yield (15 t ha-1). The goor quality parameters likes sucrose (80.1 %), colour transmittance (57.80%) and goor recovery (11.21%) were noticed highest in T3 treatment, which was similar to T4 treatment (CD @ 15 t ha-1 + 36:52:60:17:10:2.5:4 kg NPKSMgZnB ha-1). On the other hand the lowest reducing sugars (6.56%) and ash content (2.96%) were also observed in T3 treatment. The results from this experiment revealed that the treatment - PL @ 5 t ha-1 + 95:51:87:9:10:2.5:4 kg NPKSMgZnB ha-1 followed by CD @ 15 t ha-1 + 36:52:60:17:10:2.5:4 kg NPKSMgZnB ha-1 provided a scope to supply raw material with juice and goor quality of sugarcane grown in High Ganges River Floodplain soils to sugar industry and goor makers.
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