POTATO PRODUCTIVITY AND NUTRIENT USE EFFICIENCY AS INFLUENCED BY NPK FERTILIZER OMISSIONS IN CENTRAL INDIA

Authors

  • Shiv Pratap Singh ICAR CPRI RS, GWALIOR MP
  • Sanjay Kumar Sharma ICAR CPRI RS, GWALIOR
  • Vijay Kumar Dua ICAR CPRI Simla
  • Jagdev Sharma CAR CPRI Simla
  • Murlidhar Jagannath Sadawarti ICAR CPRI RS, GWALIOR
  • Satyajit Roy ICAR-Directorate of Medicinal & Aromatic Plants Research Boriavi - 387 310, Anand District, Gujarat
  • Shyam Kumar Gupta ICAR CPRI RS, GWALIOR MP
  • Swaroop Kumar Chakrabarti ICAR CPRI Shimla

Keywords:

Potato, nutrient management, agronomic efficiency, partial factor productivity

Abstract

In India, lack of knowledge on soil fertility and appropriate nutrient management practices has restricted potato
production. A field trial was conducted for 5-years during 2013-14 to 2017-18 to determine the main limiting nutrient for
potato (Solanum tuberosum L) and to evaluate the nutrient management practices (NMPs). Results indicated average potato
yields in nutrient omission plots was in the order 0-N (29.5 t ha-1), 0-P (31 t ha-1), 0-K (17.9 t ha-1). The agronomic efficiency
at 50% applied NPK for N (AEN), P (AEP) and K (AEK) was 35 kg tuber kg-1 N, 187 kg tuber kg-1 P and 53 kg tuber kg-1 K,
respectively, and the partial factor productivity of N (PFPN), P (PFPP) and K (PFPK) was 349 kg tuber kg-1 N, 1846 kg tuber kg-1
P and 523 kg tuber kg-1 K, respectively. There was significant negative relationship between AE or PFP of N, P or K and the
respective nutrient rate. Apparent recovery of NPK was 31, 25 and 35%, respectively. The positive relationship between yield
of nutrient omission plots and PFP and AE suggests nutrient use efficiency can be affected by soil indigenous productivity.
NMP produced significant higher yield (32.9 t/ha), yield response (21%) and economic net returns (Rs 47120/ha).

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Author Biographies

Shiv Pratap Singh, ICAR CPRI RS, GWALIOR MP

CPRS, Gwalior, MP

Principal Scientist and Head

Sanjay Kumar Sharma, ICAR CPRI RS, GWALIOR

ICAR CPRI RS, GWALIOR MP
Sinior Tech Officer

Vijay Kumar Dua, ICAR CPRI Simla

ICAR CPRI Simla

Principal Scientist and Head

Jagdev Sharma, CAR CPRI Simla

ICAR CPRI Simla

Principal Scientist

Murlidhar Jagannath Sadawarti, ICAR CPRI RS, GWALIOR

ICAR CPRI RS, GWALIOR

Scientist Scinior scale

Satyajit Roy, ICAR-Directorate of Medicinal & Aromatic Plants Research Boriavi - 387 310, Anand District, Gujarat

ICAR-Directorate of  Medicinal & Aromatic Plants Research Boriavi - 387 310,  Anand District, Gujarat

Principal Scientist

Shyam Kumar Gupta, ICAR CPRI RS, GWALIOR MP

ICAR CPRI RS, GWALIOR MP
Sinior Tech Officer

Swaroop Kumar Chakrabarti, ICAR CPRI Shimla

ICAR CPRI Shimla

Ex Director

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Published

2021-09-21

How to Cite

Singh, S. P., Sharma, S. K., Dua, V. K., Sharma, J., Sadawarti, M. J., Roy, S., Gupta, S. K., & Chakrabarti, S. K. (2021). POTATO PRODUCTIVITY AND NUTRIENT USE EFFICIENCY AS INFLUENCED BY NPK FERTILIZER OMISSIONS IN CENTRAL INDIA. Potato Journal, 47(2). Retrieved from https://epubs.icar.org.in/index.php/PotatoJ/article/view/105183