Effect of Foliar Feeding of Borax, Zinc Sulphate and Urea on Fruiting, Yield and Quality of Guava (Psidium guajava L.) cvs. Lalit and Shweta under high density planting system
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Date
2017-02-01
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AGRICULTURE UNIVERSITY, KOTA
Abstract
A field experiment entitled Effect of Foliar Feeding of Borax, Zinc Sulphate and Urea on Fruiting, Yield and Quality of Guava (Psidiumguajava L.) cvs. Lalit and Shweta under high density planting systemwere conducted at the Instructional farm, KrishiVigyan Kendra, Jhalawar duringAugust,2015 to March, 2016. The experiment was consisting of 18 treatments having three levels of each Borax (0,0.3 and 0.6 per cent), Zinc sulphate (0, 0.3 and 0.6 per cent) and two levels of Urea (0 and 1 per cent). The experiment was laid out in Factorial randomized block design with three replications.
Among different doses of foliar spray of nutrients, borax@ 0.6 per cent, zinc sulphate @ 0.6 per cent and Urea @ 1 per cent were found significantly superior over control with respectfruiting characteristics, quality parameters and yieldattributes of guava.
In case of interaction effect of foliar spray of nutrients, the application of T17 treatment (borax @ 0.6 per cent, + zinc sulphate @0.6 per cent +urea @ 1 per cent) was found significantly superior over control. This treatment has given maximum increase in fruit set per cent, fruit retention per cent, number of fruits per tree, length of fruit, diameter of fruit, fruit weight, fruit volume, specific gravity, fruit yield per plant, estimated yield per hectare, reducing sugar, non-reducing sugar, total sugar over control.
Further, T16 treatment combination (borax @ 0.3 % + zinc sulphate @ 0.6 % + urea @ 1 %) has also significantly increased TSS, TSS: Acid ratio, ascorbic acid content and reduced number of seeds per fruit, days taken to first harvesting, acidity per cent of guava fruits.
Similarly, T17treatment (borax @ 0.6 per cent+ zinc sulphate @0.6 per cent +urea @ 1 per cent)has resulted the maximum gross return of (Rs.298650/ha, 275700/ha) in Lalit and Shweta varieties respectively, which was Rs. 156150/ha in Lalit, 139800/ha in Shweta, excess over control. Further, the highest net profit (Rs. 153244/ha, 136894/ha)was also estimated at thistreatment which was 109.58, 102.87 per cent higher than control.
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