Diagnosis and Recommendation Integrated System Assessment of the Nutrients Limiting and Nutritional Status of Tomato

Rabia Manzoor, Mohammad Saleem Akhtar, Khalid Saifullah Khan, Taqi Raza, Muhammad Ishaq Asif Rehmani, Carl Rosen, Muhammad Khalil Ur Rehman, Nahla Zidan, Fahad M. Alzuaibr, Nisreen M. Abdulsalam, Najla A. Khateeb, Majid Alhomrani, Abdulhakeem S. Alamri, Javeed Ahmad Lone, Muhammad Ammar Raza, Ayman El Sabagh

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Tomato is an important field crop, and nutritional imbalances frequently reduce its yield. Diagnosis and Recommendation Integrated System (DRIS), uses ratios for nutrient deficiency diagnosis instead of absolute concentration in plant tests. In this study, local DRIS norms for the field tomatoes were established and the nutrient(s) limiting tomatoes yield were determined. Tomato leaves were analyzed for nutrients, to identify nutritional status using the DRIS approach. One hundred tomatoes fields were selected from Chatter Plain Khyber Pakhtunkhwa and the Sheikupura Punjab Pakistan. The first fully matured leaf was sampled, rinsed, dried and ground for ana-lyzing P, K, Ca, Mg, Cu, Fe, Mn and Zn using an Inductively Coupled Plasma Atomic Emission Spectrophot-ometer (ICP AES). Plant tissue N and S were measured by the combustion method. The tomatoes yields were recorded at each location. The data were divided into high-yielding (≥3.79 kg/10 plant) and low-yielding (<3.79 kg/10 plant) populations and norms were computed using standard DRIS procedures. High-yielding plant population had a statistically greater mean S and Fe than the low-yielding population. The average balance index, the sum of functions, for S and Fe were −11.04 and −5.17 which reflected deficiency of S and Fe. Plant nutrients norms established may optimize plant nutrition in field tomatoes for high yield.

Original languageEnglish (US)
Pages (from-to)2759-2774
Number of pages16
JournalPhyton-International Journal of Experimental Botany
Issue number12
StatePublished - 2022

Bibliographical note

Funding Information:
Acknowledgement: The authors extend their appreciation to Taif University for supporting current work by Taif University Researchers Supporting Project No. (TURSP–2020/288), Taif University, Taif, Saudi Arabia.

Publisher Copyright:
© 2022, Tech Science Press. All rights reserved.


  • DRIS
  • macro and micro nutrients
  • nutrients norms
  • plant population
  • tomato production


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