Uptake And Availability Of Potassium And Nitrogen In  Wheat As Influenced By Their Split Application Under  Temperate Conditions Of Kashmir

Sabia Akhter; R Kotru; Javaid Ahmad Wani

doi:10.48165/

Authors

Sabia Akhter Division of Agronomy,S.K. University of Agricultural Sciences & Technology of Kashmir (SKUAST-K), Shalimar, Srinagar 190 025, Jammu & Kashmir (India)
R Kotru Division of Agronomy, S.K. University of Agricultural Sciences & Technology of Kashmir (SKUAST-K), Shalimar, Srinagar 190 025, Jammu & Kashmir (India)
Javaid Ahmad Wani Division of Soil Science, S.K. University of Agricultural Sciences & Technology of Kashmir (SKUAST-K), Shalimar, Srinagar 190 025, Jammu & Kashmir (India)

DOI:

https://doi.org/10.48165/

Keywords:

Available soil nutrient, nutrient uptake, split application, wheat, yield

Abstract

An experiment was conducted at University Research Farm, SKUAST-K, Shalimar, Srinagar (J&K) to evaluate the effect of split application of potassium and nitrogen on their uptake and availability in wheat. The experiment was laid in a split plot design with 15 treatment combinations, viz., 3 levels of potassium (K) @ 30 kg ha-1[K1: 100% K as basal dose – [recommended fertilizer dose (RFP)]; K2: split 50:50; K3: split 25:75] and 5 of nitrogen (N) @ 120 kg ha-1[N1: 50:25:25 (RFP); N2: 25:75, N3: 25:50:25, N4: 50:50 and N5: 0:75:25]. The application of K in equal splits (basal + active tillering) improved grain yield by 10.6 and 11.6%, straw yield by 11.6 and 13.4%, K uptake by 17.2 and 18.8% and N uptake by 16.4 and 17.2% during 2013-14 and 2014-15, respectively, over RFP. The available K decreased steadily with recommended application but maintained its status quo when applied in split dose. The available N in soil maintained status quo with RFP; however, it showed decline when K was applied in splits. The N application in 25:50:25 ratios (basal + active tillering + booting) enhanced grain yield, straw yield and total K and N uptake during both the years. Also, K and N content in soil decreased when N was applied in 3 splits as compared to 2 splits, where it maintained status quo after harvest of 2nd year crop. This indicates there may be need to increase N dose in order to maintain the N status of soil.

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References

Ali, E.A. 2011. Impact of nitrogen application time on grain and protein yields as well as nitrogen use efficiency of some two-row barley cultivars in sandy soil. American-Eurasian Journal of Agriculture and Environmental Science, 10: 425-433.

Bangroo, S.A., Wani, M.A. and Ali, T. 2012. Potassium dynamics in representative soils of low, mid and high-altitude zones of north Kashmir. International Journal of Agriculture and Environmental Biotechnology, 5: 441-444.

ESJK (Economic Survey of Jammu & Kashmir). 2014. Economic Survey of Jammu and Kashmir 2013-14. Directorate of Economics & Statistics, J&K, India.

Jackson, M.L. 1973. Soil chemical analysis, Prentice Hall of India, Private Limited, New Delhi. Jan, M.T., Khan, J.M., Khan, A., Arif, M., Shafi, M., Nullah, N. 2010. Wheat nitrogen indices response to nitrogen source and application time. Pakistan Journal of Botany, 42: 4267- 4279.

Khan, M.Z.S., Muhammadi, M.A., Naeemi, E.A. and Khalid, M. 2014. Response of some wheat (Triticum aestivum L.) varieties to foliar application of N and K under rainfed conditions. Pakistan Journal of Botany, 38: 1027-1034.

Khan, P., Yousuf, M., Memon, I.M. and Aslam, M. 2009. Response of wheat to foliar and soil application of urea at different growth stages. Pakistan Journal of Botany, 41: 1197-1204. Lu, Q., Jia, D., Zhang, Yu., Dai, X. and He, M. 2014. Split application of potassium improves yield and end-use quality of winter wheat. Agronomy Journal, 106: 1411-1419.

Maqsood, M., Shehzad, M.A., Asim, A. and Ahmad, W. 2012. Optimizing rate of nitrogen application for higher growth and yield of wheat (Triticum aestivum L.) cultivars. Pakistan Journal of Agricultural Science, 49: 491-496.

Mathukia, R.K., Kapadiya, J.K. and Panara, D.M. 2014. Scheduling of nitrogen and potash application in irrigated wheat (Triticum aestivum L.). Journal of Wheat Research, 2: 171-172. Merwin, H.D. and Peech, M. 1950. Exchangeability of soil potassium in the sand, silt and clay fractions as influenced by the nature of complementary exchangeable cations. Soil Science Society of America Proceedings, 15: 125-128.

Mohanty, S.K., Singh, A.K., Jat, S.L., Parihar, C.M., Pooniya, V., Sharma, S., Sandhya, Chaudhary, V. and Singh, B. 2015. Precision nitrogen-management practices influences growth and yield of wheat (Triticum aestivum) under conservation agriculture. Indian Journal of Agronomy, 60: 617-621.

Nachimuthu, G., Velu, V., Malarvizhi, P., Ramaswamy, S. and Sellanuthu, K.M. 2007. Effect of real time nitrogen management on biomass production and nutrient uptake and soil nutrient status of rice. American Journal of Plant Physiology, 2: 214-220.

Pasha, A., Chittapur, B.M., Patil B.N. and Hiremath, S.M. 2007. Effect of prolonged nitrogen application and sulphur nutrition on grain quality and nutrient uptake of wheat and soil available nutrient dynamics. Karnataka Journal of Agricultural Science, 20: 224-227.

Romheld, V. and Kirkby, E.A. 2010. Research on potassium in agriculture: Needs and prospects. Plant & Soil, 335: 155-180.

Subbiah, B.V. and Asija, G.L. 1956. A rapid procedure for the estimation of available nitrogen in the soil. Current Science, 25: 259-266.

Subedi, K.D., Ma, B.L. and Xue, A.G. 2007. Planting date and nitrogen effects on grain yield and protein content of spring wheat. Crop Science, 47: 36-44.

Wani, J.A., Malik, M.A., Dar, M.A., Farida, A. and Raina, S.K. 2014. Impact of method of application and concentration of potassium on yield of wheat. Journal of Environmental Biology, 35: 623-626.

Wu, J., Guo, X.S., Wang, Y.Q. and Huang. X.R. 2008. Effects of potassium fertilizer operation on the uptake and utilization of nitrogen and potassium, yield and quality of wheat (in Chinese). Soils, 40: 777-783.