EFFECT OF DIFFERENT FERTILITY LEVELS ON TUBER YIELDS, INPUT USE EFFICIENCY AND ECONOMICS OF POTATO VARIETY KUFRI CHIPSONA-3

S.K. CHONGTHAM¹*, R.N. PATEL², I.M. PATEL³, J.K. PATEL⁴, D.M. ZAPADIYA^5
1Potato Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa, 355 535, Gujrat
²Potato Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa, 355 535, Gujrat
³Central Instrumentation Laboratory, Sardarkrushinagar Dantiwada Agricultural University, 385 506, Gujrat
⁴Potato Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa, 355 535, Gujrat
⁵Potato Research Station, Sardarkrushinagar Dantiwada Agricultural University, Deesa, 355 535, Gujrat
* Corresponding Author : sunil.sunil.ch@gmail.com

Received : 30-06-2016     Accepted : 23-07-2016     Published : 21-10-2016
Volume : 8     Issue : 49       Pages : 2066 - 2068
Int J Agr Sci 8.49 (2016):2066-2068

Keywords : Cracked tuber, Fertility level, Net income, Return per day, Tuber yield
Academic Editor : Dr Aanandi Lal Jat
Conflict of Interest : None declared
Acknowledgements/Funding : Financial assistance and support extended by AICRP (Potato) are highly valued and appreciated by the authors.
Author Contribution : None declared

A field study on different levels of NPK i.e.,-0-0, 165-84-165,330-168-330, 495-252-495 and 660-336-660 kg N-P2O5-K2O/ha were conducted on processing potato variety Kufri Chipsona-3 at Potato Research Station, SDAU, Deesa (Gujarat) during rabi season for two consecutive years 2012-13 and 2013-14. Results clearly revealed that application of 330-168-330kg N-P2O5-K2O/ha had significantly higher tuber yield (23.13 t/ha) over lower dose of NPK (165-84-165kg N-P2O5-K2O/ha), while reducing tuber cracking than higher doses of NPK (495-252-495 and 660-336-660 kg N-P2O5-K2O/ha). Nutrient use efficiency of NPK decreased with subsequent increase in levels of NPK, while water use efficiency and crop productivity registered significant improvement under elevated doses of NPK up to 330-168-330 kg N-P2O5-K2O/ha. From economic point of view, 330-168-330kg N-P2O5-K2O/ha registered highest net income (₹27,032/ha) and return per day (₹275.84/ha/day).