EFFECT OF NITROGEN, PHOSPHORUS AND POTASSIUM ON GROWTH AND YIELD OF POTATO (Solanum tuberosum L.)

BEANT SINGH¹, S.K. SINGH²*, RAJNEET KAUR³, RAMPARTAP^4
1Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, 140407, Punjabi University, Patiala, 147002, Punjab, India
²Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, 140407, Punjabi University, Patiala, 147002, Punjab, India
³Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, 140407, Punjabi University, Patiala, 147002, Punjab, India
⁴Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, 140407, Punjabi University, Patiala, 147002, Punjab, India
* Corresponding Author : sandeepkumar@matagujricollege.org

Received : 04-03-2018     Accepted : 08-03-2018     Published : 15-03-2018
Volume : 10     Issue : 5       Pages : 5319 - 5321
Int J Agr Sci 10.5 (2018):5319-5321

Keywords : Nitrogen, Phosphorous, Potassium, Growth and Yield
Academic Editor : Kumar Amogh P, Moubarak M Y Gh, Nimai Bera
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Mata Gujri College, Fatehgarh Sahib, 140407, Punjabi University, Patiala, 147002, Punjab
Author Contribution : All author equally contributed

The present investigation entitled “Effect of Nitrogen, Phosphorus and Potassium on Growth and Yield of Potato (Solanum tuberosum L.)” was conducted during 2016-17 at the experimental farm Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, Punjab, India. The experiment was laid out in a Randomized block design with three replications and nine treatments. The treatments consisted of T1: Control, T2: 50% NPK, T3: 75% NPK, T4: 100% NPK, T5: 100% NP + 75% K, T6: 100% NP + 50% K, T7: 75% NP + 100% K, T8: 75% NP + 50% K and T9: 50% NP + 75% K. Application of different levels of fertilizers increased the growth, yield and yield attributes of Potato. The maximum plant height (69.02 cm), Number of compound leaves (54.97), Number of branches per plant (12.90), Leaf Area Index (4.36), Number of plants in running meter (8.67), Number of main stems per hill (4.17), Dry weight of Haulm (79.20g/hill), Number of tubers per plant (13.23), Weight of tubers per plant (385g), Yield of Marketable tubers (235.92q/ha), Total tuber yield (256.29q/ha), Haulm yield (87.40q/ha), Biological yield (343.70q/ha) and Harvest Index (76.17%) were recorded with the combined application of 100 per cent RDF of Nitrogen, Phosphorus and Potassium. Whereas, maximum net returns of Rs. 2,06,045 along with benefit: cost ratio (4.10:1) were also recorded with the application of 100%NPK. These results suggested that the optimum production of potato can be obtained with combined application of 100% NPK.

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