IPI International Potash Institute
IPI International Potash Institute

IPI K Centre - Nitrogen and Potassium Interactions

IPI K Centre - Nitrogen and Potassium Interactions

Both nitrogen and potassium are macronutrients, used in large quantities to achieve high yields and quality. While potassium is benign to the environment, nitrogen fertilizer which is applied but not utilized by plants can have a significantly detrimental effect. Even though the theory of the 'Law of the Minimum' and scientific findings showing the interaction between nitrogen and potassium are well known, imbalanced fertilization and ignorance of the importance of potassium often leads to suboptimal levels of nitrogen use efficiency (NUE).

Dozens of experiments made by IPI, demonstrate the role and scale of effect of potassium on NUE. In these experiments, a typical K application of 30-150 kg K2O/ha can increase NUE by approximately 10-40%.

Applying potassium and improving nutrient management practices offers an immediate and rewarding strategy to raise NUE and thereby reduce the undesirable flow of nitrogen into the environment.

The following items found on our web describe how the application of potash increases crops' response to nitrogen.

Publications

Nitrogen Use Efficiency (NUE) and Potassium
Compiled by: Dr. M.S.Brar and P.Imas, 8 pages
2009
Leaflets
English
Nitrogen Use Efficiency (NUE) and Potassium
Compiled by: Dr. M.S.Brar and P.Imas, 8 pages
2009
Leaflets
Hindi

Papers and presentations

乌克兰西部冬小麦、玉米和甜菜上不同氮肥水平下施钾的效益
Author: Polevoy, V.M., L.Y. Lukashchuk, and G. Peskovski
Event: e-ifc 43 Chinese edition
Documents: PaperDownload paper (pdf 1.24 MB)
31 Dec 2015
 
Chinese
Efficiency of Potassium Application in Relation to Nitrogen Fertilization Level in Winter Wheat, Grain Maize, and Sugar Beet Cultivated in Western Ukraine
Author: Polevoy, V.M., L.Y. Lukashchuk, and G. Peskovski
Event: e-ifc 43
Documents: PaperDownload paper (pdf 2.32 MB)
30 Dec 2015
 
English
Interação N e K na Nutrição de Plantas
Author: Cassio Hamilton Abreu-Junior
Event: Apoio ao Uso Balanceado de Potássio na Agricultura Brasileira: 10 anos de parceria IPI e EMBRAPA, São Paulo, Brazil
Documents: Download presentation (pdf 2.79 MB)
09-10 Oct 2013
 
Portuguese
Nitrogen Use Efficiency (NUE), Growth, Yield Parameters and Yield of Maize (Zea mays L.) as Affected by K Application
Author: Brar, M.S., Preeti Sharma, Amandeep Singh, and S.S. Saandhu
Event: e-ifc 30
Documents: PaperPaper (pdf 814 kB)
30 Mar 2012
 
English
The Effects of Nitrogen Form on Interactions with Potassium
Author: Bar Tal, A.
Event: e-ifc 29
Documents: PaperPaper (pdf 1.16 MB)
31 Dec 2011
 
English
Role of Potassium Nutrition in Nitrogen Use Efficiency in Cereals
Author: Brar, M.S., Bijay-Singh, S.K. Bansal, and Ch. Srinivasarao
Event: e-ifc 29
Documents: PaperPaper (pdf 515 kB)
31 Dec 2011
 
English
Nitrogen-Potassium Interaction in Soil-Plant Systems: A Special Session of the IPI-INI-ING at N2010, New Delhi, India
Author: Raghuram, N.
Event: e-ifc 29
Documents: PaperPaper (pdf 788 kB)
31 Dec 2011
 
English
Effect of K on N Use Efficiency-India Scenario
Author: K.N. Tiwari, B.S. Dwivedi, V.K. Singh and M.C. Meena
Event: IPI-OUAT-IPNI International Symposium 2009: Potassium Role and Benefits in Improving Nutrient Management for Food Production, Quality and Reduced Environmental Damages, Bhubaneswar, Orissa, India
Documents: Presentation (pdf 351 kB)
05-07 Nov 2009
 
English
Higher Yields and Reduction of Incidence of Stem Brittle in White Carnation by Increasing Potassium Concentration and NO3-:NH4+ Ratio in the Fertigation Medium
Editors: IPI
Event: e-ifc 20
Documents: PaperPaper (pdf 1.45 MB)
30 Jun 2009
 
English
Effect of Applied Potassium in Increasing the Potential for Nitrogen Assimilation in Spinach (Spinacia oleracea L.)
Editors: IPI
Event: e-ifc 20
Documents: PaperPaper (pdf 160 kB)
30 Jun 2009
 
English
Potassium Sulphate and Potassium Chloride in the Nutrition of Poppy (Papaver somniferum L.) in Relation to Nitrogen Supply
Editors: IPI
Event: e-ifc 19
Documents: PaperPaper (pdf 1.41 MB)
31 Mar 2009
 
English
Putting K in the picture achieving improved nitrogen use efficiency
Author: H. Magen and V. Nosov
Event: IPI-BFA-BRRI International Workshop on Balanced fertilization for increasing and sustaining crop productivity, Hotel Razmoni Ishakha, Dhaka, Bangladesh
Documents: Presentation (pdf 408 kB)
30 Mar-01 Apr 2008
 
English
Improving the efficiency of nitrogen use with potassium
Editors: IPI
Event: e-ifc 13
Documents: Paper
01 Sep 2007
 
English
Interaction of Potassium and Ammonium ions in Soil
Author: Xiaoqin Chen
Event: IPI-ISSAS International Workshop on Soil K and K fertilizer management, Zhuhai city, China
Documents: Presentation (pdf 1.35 MB)
13-16 Nov 2006
 
English
Interaction between K and N for Maize and Wheat
Author: D. Steffens
Event: IPI-ISSAS International Workshop on Soil K and K fertilizer management, Zhuhai city, China
Documents: Presentation (pdf 1.46 MB)
13-16 Nov 2006
 
English
Effects of Nitrogen and Potassium Fertilization on Yield and Potassium Contents of Kiwifruit
Author: Ceyhan Tarakçıoğlu, Tayfun Aşkın
Event: Potassium and its importance in Agriculture, Eskisehir, Turkey
Documents: Paper (pdf 249 kB)
03-05 Oct 2005
 
Turkish
Effect of Potash and Nitrogen Fertilization on Wheat under Saharan Conditions
Author: M.T. Halilat
Event: Potassium and Fertigation Development in WANA, Marrakech, Morocco
Documents: Paper (pdf 84.4 kB)
01 Nov 2004
 
French

Scientific abstracts

2012
 
English
2008
 
English
Potassium and Nitrogen Interactions in Crop Production
Milford, G.F.J., and A. E.Johnston.
International Fertiliser Society 2007, Proceedings 615, 1-21. ISBN 978-0-85310-252-6
2007
 
English
Effect of Nitrogen Management on Yield and Water use Efficiency of Rainfed Wheat and Maize in Northwest China
Dang Ting-Hui, Cai Gui-Xin, Guo Sheng-Li, Hao Ming-De and L.K. Heng
Pedosphere 16(4):495-504 (2006)
2006
 
English
Effect of Nitrogen and Potassic Fertilizers on the Performance of BRRI Dhan28 and BRRI Dhan29 in Boro Season
Diba, F., Farukh, M.A., Islam, N. and Bhuiya, M.S.U.
Bangladesh J. Agric. and Environ. 1(1):57-64 (2005)
2005
 
English
Potassium Nutrition of the Rice-Wheat Cropping System
Bijay-Singh, Yadvinder-Singh, Patricia Imas and Xie Jian-chang
Advances in Agronomy 81:203-259 (2004)
2004
 
English
2004
 
English
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Infographics
The Role of Potassium (K) in the Plant (in Urdu)
Potassium and Nitrogen Use Efficiency (NUE) in Urdu
Potassium in Soil and Plant Systems (in Urdu)
IPI profile infographic
Chloride - an essential nutrient
Potassium and Nitrogen Use Efficiency (NUE)
Managing Water and Fertilizer for Sustainable Agricultural Intensification - infographic
Potassium Improves your Crop Quality
Potassium Improves your Health
Potassium in Soil and Plant Systems
The Role of Potassium (K) in the Plant
What does a Plant Need to Live
Assessment of the Impact of Targeted Use of Fertilizer on Irrigated Rice in Asia
The Role of Potassium (K) in the Plant (in Urdu)

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