Sulphur And Boron Nutrition On Growth,Yield And Quality Of Onion (Allium Capa L.) CV .Nasikred
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Date
2000
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Birsa Agricultural University, Ranchi
Abstract
The present investigation was conducted for the maximization of bulb yield in onion by the application of sulphur and boron. The experiment was laid out during rabi 1998-99.Experiment was conducted in Randomized Block Design with factorial fashion, comprising of four levels of sulphur ( 0,20,40 and 60 kg-1) and three levels of boron (0,1, and 2 Kg ha-1) to study the effect on growth, yield and quality of onion crop.
The significant effect of treatments was observed particularly for growth attributes in later stages. The ultimate plant height (66.30cm), number of leaves (13.06),leaf length(53.33cm) and leaf width(4.05 cm)were recorded maximum in the treatment combination S2B2 while minimum neck thickness (4.63cm) was also observed in the same combination.
Among the yield attributes bulb weight (70.33g),bulb volume(75.20cc) bulb length (5.60cm) and bulb diameter (5.92) were found maximum in the treatment combination S2B1.Finally the bulb yield per plot (9.03Kg ) as well as estimated bulb yield (209.10q ha-1)were obtained in the treatment combination S2B1.The quality attributes like dry matter percentage were recorded maximum 9.86 per cent for leaves and 14.36 per cent for bulbs in the treatment combination S2B2,while TSS percentage was maximum (14.25) in the treatment combination S3B2.Storability of onion bulbs at room temperature was recorded maximum (103.33days) in the treatment combination S0B2 and the minimum storability period(76.66days) was observed in the treatment combination S3B0.Interaction effect of sulphur and boron (S X B) were found to be non significant for most of the characters .So far as the economics of the trial was concerned the treatment combination S2B1 gave the maximum net return Rs 71.692=ha-1) as well as benefit cost ration (3.20)
The present investigation suggested that significant increase in growth yield as well as quality were observed by the application of sulphur upto 40Kg per hectare and boron upto 1 Kg per hectare with recommended dose of NPK fertilizers.