Phosphorus and zinc uptake and protein, lysine and tryptophane contents in quality protein maize in relation to phosphorus and zinc fertilization in mollisol


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Authors

  • Abhishek Jangir G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)
  • Veer Singh G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)
  • P.C. Srivastava G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)
  • Shri Ram G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)
  • Amit Bhatnagar G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)

Keywords:

quality protein maize, phosphorus and zinc fertilization, uptake, quality—parameters, mollisol

Abstract

High quality protein maize hybrid HQPM-1 grown with different doses of phosphorus (0, 30, 60 and 90 kg/ha) and zinc (0, 5, 10 and 15 kg/ha) to evaluate the effect of P and Zn on their uptake, plant growth, grain yield and protein quality during kharif season 2012 on zinc deficient silty clay loam soil. Application of P and Zn significantly increased the available P in soil however; available Zn reduced with increment of P. There was gradual increase in plant height, ear height, number of leaves and test weight with increase in P and Zn doses however, root dry weight decreased beyond 60 kg P and 10 kg Zn/ha. Application of P up to 60 kg/ha and Zn up to 15 kg/ha reduced the anthesis silking interval. Phosphorus and zinc uptake also increased with increasing P and Zn level upto 60 kg/ha and 15 kg/ha, respectively. The grain and stover yields were significantly affected by P and Zn however; grain yield did not significantly influence due to P and Zn interaction. Phosphorus and zinc application had synergistic impact on protein, lysine and tryptophan content of grain where maximum contents were found with the highest doses of P and Zn.

Author Biography

  • Amit Bhatnagar, G.B. Pant University of Agriculture & Technology, Pantnagar, Distt. U.S. Nagar-263145 (Uttrakhand)
    abhishekjangir1988@gmail.com

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How to Cite

Phosphorus and zinc uptake and protein, lysine and tryptophane contents in quality protein maize in relation to phosphorus and zinc fertilization in mollisol. (2016). Annals of Agricultural Research, 36(1), 50-57. https://epubs.icar.org.in/index.php/AAR/article/view/54251