Choice of nitrogen fertilizer affects grain yield and agronomic nitrogen use efficiency of wheat cultivars

Mubshar Hussain*, Sardar Alam Cheema, Rana Qaisar Abbas, Muhammad Faizan Ashraf, Muhammad Shahzad, Muhammad Farooq, Khawar Jabran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Nitrogen use efficiency (NUE) is low in cereals especially in wheat. Different wheat cultivars may vary in NUE due to inherited biological nitrification inhibition (BNI) potential. In this study, three wheat cultivars (Punjab-2011, ARRI-2011 and Millat-2011) were fertilized at the rate of 140 kg ha−1 with three N sources [nitrophos (NP), urea and calcium ammonium nitrate (CAN)]. The soil nitrate (NO3 )-N contents were significantly enhanced coupled with simultaneous decrease in ammonium (NH4 +)-N contents in the rhizosphere of cultivar Punjab-2011, fertilized with NP; however, cultivar Millat-2011 receiving urea behaved in contrast. Wheat cultivar Punjab-2011 fertilized with NP had the highest grain yield and agronomic NUE than other treatments due to significant increase in chlorophyl contents, allometric and yield parameters. The highest net benefit was recorded from the cultivar Punjab-2011 fertilized with CAN. In conclusion, use of NP in Punjab-2011 enhanced the grain yield and agronomic NUE.

Original languageEnglish
Pages (from-to)2330-2343
Number of pages14
JournalJournal of Plant Nutrition
Volume41
Issue number18
DOIs
Publication statusPublished - Nov 8 2018

Keywords

  • Allometry
  • biological nitrification inhibition
  • grain yield
  • nitrogen source
  • wheat cultivars

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science

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