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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(8): 1052-1061
DOI: https://doi.org/10.20546/ijcmas.2018.708.119


Effect of Integrated K Management on Productivity and Nutrient Use Efficiency of Maize-Wheat Cropping System
Sanjeev Kumar1*, Shiva Dhar2, R.S. Yadav3, M. Chandrakala4, S.A. Kochewad5, L.R. Meena6, L.K. Meena6, Magan Singh1 and Arpan Bhowmik7
1Agronomy Section, NDRI Karnal-132001, India
2Division of Agronomy, IARI, New Delhi-110012, India
3Indian Institute of Soil and Water Conservation, Regional Centre,
Datia-475661, India
4NBSS-LUP, Bangalore-560024, India
5IVRI, Izatnagar, Uttar Pradesh – 243122, India
6IIFSR, Modipuram, Meerut - 250 110, India
7IASRI, New Delhi - 110 012, India
*Corresponding author
Abstract:

A field experiment was conducted during the rainy (June - October) and winter (November – March) seasons for two years during 2010-2012 at research farm of ICAR - Indian Agricultural Research Institute, New Delhi, India. The experiment was laid out in a randomized block design consisting of seven treatments and three replication. Results revealed the integrated application of 90 kg K ha-1 supplemented through muriate of potash (MOP) @ 60 kg K and farmyard manure (FYM) @ 30 kg K resulted in highest grain yield of 4.93 t ha-1 and biological yield of 11.71 t ha-1 in maize. Similarly, highest grain yield of 5.44 t ha-1 and biological yield of 14.03 t ha-1 were observed in treatment applied with integrated dose of K @ 90 kg K ha-1 supplemented through MOP and FYM in wheat crop. The highest uptake of K was observed under treatment applied through 30 kg K through MOP + 30 kg K through FYM in both cropping cycles. Nutrient use efficiency of N, P and K increased by K application. In soil, decline was observed in different fractions of K irrespective of different applied K treatments. All the treatments where K was added showed a negative balance of K availability in soil. Application of 60 kg K ha-1 through MOP in both the season showed minimum negative K balance (-281.3 kg ha-1). Integrated K application @ 90 Kg K ha-1 resulted in highest exchangeable and nonexchangeable K in the soil for both seasons. To achieve a sustained yield level, nutrient use efficiency and soil fertility integrated K application @ 60 kg K ha-1 for the rainy season in maize and a dose of 60 kg K ha-1 through MOP alone in the winter season for wheat crop may be recommended.


Keywords: Farmyard manure, K dynamics, Muriate of Potash, Nutrient use efficiency, Productivity
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How to cite this article:

Sanjeev Kumar, Shiva Dhar, Yadav, R.S., Chandrakala, M., Kochewad, S.A., Meena, L.R., Meena, L.K., Magan Singh and Arpan Bhowmik. 2018. Effect of Integrated K Management on Productivity and Nutrient Use Efficiency of Maize-Wheat Cropping System.Int.J.Curr.Microbiol.App.Sci. 7(8): 1052-1061. doi: https://doi.org/10.20546/ijcmas.2018.708.119