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Cereal Research Communications

, Volume 33, Issue 2–3, pp 589–594 | Cite as

Effect of 25 Years of Continuous Fertilizer Use on Response to Applied Nutrients and Uptake of Micronutrients by Rice-Wheat-Cowpea System

  • Veer Singh
  • Nand RamEmail author
Article

Abstract

In a twenty five years old long-term fertilizer experiment with rice-wheat-cowpea system on a mollisol at Pantnagar; rice and wheat responded well to applied N, Zn and FYM over the years; whereas, responses to other applied nutrients are improving with the passage of time owing to decline in their availability in soil. Uptake of micronutrients by the entire cropping sequence of rice-wheat-cowpea varied from 143 to 597, 2274 to 6169, 384 to 1234 and 119 to 521 g ha−1 for Zn, Fe, Mn and Cu, respectively. The highest removal of Zn by crops was observed under 100%NPK+Zn, while that of Fe, Mn and Cu was under 100%NPK+FYM. Removal of micronutrients by the annual cropping cycle depleted the availability of Zn, Fe, Mn and Cu in soil in the range of 0.02 – .0.37, 0.1–1.8, 0.1–1.6 and 0.1 – 0.2 mg kg−1, respectively under different treatments.

Index words

Long-term fertilizer use nutrient response micronutrients uptake rice-wheat - cowpea 

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References

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Copyright information

© Akadémiai Kiadó, Budapest 2005

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Soil ScienceG. B. Pant University of Agric. and Tech.PantnagarIndia

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