Response of sweet potato [Ipomoea batatas (L.) Lam.] to magnesium sulphate nutrition
Keywords:
Sweet potato, Magnesium sulphate, Dry matter production, Tuber yieldAbstract
An experiment was conducted during September 2019 to December 2019 at the Agronomy Farm, College of Agriculture, Vellanikkara, Thrissur with an objective to assess the influence of MgSO4 application on plant growth and tuber yield of sweet potato. Varied doses of MgSO4 @ 0, 40, 60, 80 and 100 kg/ha were tested together with two levels of N:P2 O5 :K2 O. NPK levels were Package of Practices Recommendation (POP) of N:P2 O5 :K2 O (75:50:75 kg/ha) as well as its soil test based application of 65:12:20 kg/ha. There were ten treatment combinations replicated thrice in RBD. The vine length did not differ significantly during the growing period. However dry matter production at harvest (i.e., shoot ,tuber and total) ,showed significant difference. In general, all the treatments which received lower N:P2 O5 :K2 O dose of 65:12:20 kg/ha registered lower and comparable dry matter production. Tuber yield was higher at recommended NPK dose of 75:50:75 kg/ha. Application of N:P2 O5 :K2 O @ 75:50:75 together with MgSO4 @ 40 kg/ha resulted in significantly higher yield of 32.91 t/ha, which was 15 per cent higher compared to no magnesium sulphate application.References
AI-Esailyl, I. A. S. and EI-Naka, E. A. 2013. Effect of magnesium and humic acid on the productivity of sweet potato grown in sandy soil. Egypt. J. Appl. Sci., 28(9): 615-633.
CIP [International Potato Center]. 2017. Annual Report 2016-17 (Harnessing potato and sweet potato power for food security, nutrition and climate resilience). International Potato Center, Lima, Peru, 52p.
Laxminarayana, K. and John, S. K. 2014. Effect of Zinc and Magnesium on Orange-Fleshed Sweet Potato in Alfisols of Odisha. Indian J. Root Crops. 40(1): 44-51.
Talukder, M., Islam, M. B., Kamal, S., Mannaf, M., and Uddin, M. 2009. Effects of magnesium on the performance of potato in the Tista Meander Floodplain soil. Bangladesh. J. of Agric. Res., 34(2): 255-261.
O’Sullivan, J. N., Asher, C. J., and Blamey, F. P. C. 1997. Nutrient Disorders of Sweet Potato. Australian Centre for International Agricultural Research Monograph No.48,136p.
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