International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 6
First page : (600) Last page : (606)
Article doi: http://dx.doi.org/10.18782/2320-7051.2901
Effect of Graded Levels of Nitrogen and Potassium on Growth and Yield of Sweet Potato (Lpomoea batatas L.)
Pushpalatha, M. 1*, Vaidya, P. H. Sunil, B. H. and Adsul, P. B.
Department of Soil Science and Agriculture Chemistry, College of Agriculture, Latur
Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani 431402 (M.S.) India
*Corresponding Author E-mail: pushpalatha.bscag@gamil.com
Received: 25.04.2017 | Revised: 28.05.2017 | Accepted: 2.06.2017
ABSTRACT
A field Experiment was conducted in Kharif season during the year 2015-2016 on fine texture Vertisols at Horticulture Research Farm, College of Agriculture, Latur (Maharastra). This work aimed to investigate increasing growth and yield of sweet potato (Ipomoea batatas. L.) under the condition of semi-arid region. The experiment was laid in Factorial Randomized Block Design with three replications and twelve treatments. The experiment consist of 4 levels of nitrogen (0, 75, 100, & 125 kg ha-1) and 3 levels of potassium (0, 75, & 100 kg ha-1). The result of field experiment revealed that the all growth and yield of sweet potato were significantly increased with increased levels of nitrogen and potassium content in earlier growth stage of sweet potato and similar trend was observed in case of yield at harvest. Application of 125 kg N ha-1recorded significantly higher leaf area index at end of harvest (1.26), leaf chlorophyll content like chlorophyll-a (0.65 mg/g Fresh weight) chlorophyll-b (1.48 mg/g Fresh weight) and total chlorophyll (2.13 mg/g Fresh weight) content at 120 DAP and yield of sweet potato (22. 39 ton/ha) was significantly recorded in same manner. Application of potassium @ 100 kg/ha was recorded significantly increases the leaf area index at harvest (1.30) and leaf chlorophyll like chlorophyll-a (0.41mg/g Fresh weight), chlorophyll-b (0.91 mg/g Fresh weight) and total chlorophyll (1.32 mg/g Fresh weight) at 120 DAP and yield of sweet potato (19. 59 ton/ha) significantly superior over rest of the treatments than control.
Key words: Sweet potato, Nitrogen, Potassium, Chlorophyll.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Pushpalatha, M., Vaidya, P.H., Sunil, B.H. and Adsul, P.B., Effect of Graded Levels of Nitrogen and Potassium on Growth and Yield of Sweet Potato (Lpomoea batatas L.), Int. J. Pure App. Biosci.5(6): 600-606 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2901
