Vol. 6, Issue 5 (2018)
Influence of different sources, levels and methods of application of potash on growth, yield, nutrient uptake and bulb quality of Rabi onion in inceptisol
Author(s): BD Tamboli, DD Sawale, Vedshree Patil, AL Pharande and SK Bansal
Abstract: A field experiment on rabi onion (cv.N-2-4-1) was carried out at experimental farm of College of Agriculture, Pune during the winter season of 2016-17 with a view to study the effect of different levels and sources of potash (0, 50, 100 and 150 kg K2O ha-1) and methods of application of potash as a basal (30 % K2O at the time of transplanting, 40% through fertigation after 30 days of transplanting till initiation of bulb formation and remaining 30% through fertigation after 60 days of transplanting till bulb formation at weekly intervals respectively). In addition to that one more additional treatment of 100 kg K2O ha-1 was applied in the proportion of 90 kg K2O through MOP as a basal application + 10 kg K2O through SOP as a foliar spray @ 1% after 60 and 75 days after transplanting for comparison of methods of application of potassium. The results revealed that, the application of 100 kg K2O ha-1 (90 kg K2O ha-1 as basal at the time of transplanting through MOP and 10 kg K2O through two foliar sprays of SOP at 60 and 75 days after transplanting) recorded maximum fresh bulb weight, dry matter yield, and higher bulb diameter, the higher nutrient uptake of nitrogen, phosphorus, potassium, sulphur, Fe, Mn, Zn and Cu uptake rabi onion. The application of 100 kg K2O ha-1 (SOP) through soil and fertigation or 100 kg K2O ha-1 was applied in the proportion of 90 kg K2O through MOP as a basal application + 10 kg K2O through SOP as a foliar spray @ 1% after 60 and 75 days of transplanting recorded magnitudely lower mean physiological loss in weight.
Pages: 1077-1080 | 359 Views 85 Downloads
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How to cite this article:
BD Tamboli, DD Sawale, Vedshree Patil, AL Pharande, SK Bansal. Influence of different sources, levels and methods of application of potash on growth, yield, nutrient uptake and bulb quality of Rabi onion in inceptisol. Int J Chem Stud 2018;6(5):1077-1080.
