Accentuating the Role of Nitrogen to Phosphorus Ratio on the Growth and Yield of Wheat Crop

Maria Mussarat, Muhammad Shair, Dost Muhammad, Ishaq Ahmad Mian, Shadman Khan, Muhammad Adnan, Shah Fahad, Eldessoky S. Dessoky, Ayman EL Sabagh, Afia Zia, Bushra Khan, Haroon Shahzad, Shazma Anwar, Haroon Ilahi, Manzoor Ahmad, Hamida Bibi, Muhammad Adnan and Farmanullah Khan
Additional contact information
Maria Mussarat: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Muhammad Shair: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Dost Muhammad: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Ishaq Ahmad Mian: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Shadman Khan: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Muhammad Adnan: Department of Agriculture, University of Swabi, Swabi 23561, Pakistan
Shah Fahad: Department of Agronomy, The University of Haripur, Khyber Pakhtunkhwa 22620, Pakistan
Eldessoky S. Dessoky: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Ayman EL Sabagh: Department of Agronomy, Faculty of Agriculture, University of Kafreilsheikh, Kafr El-Shaikh 12613, Egypt
Afia Zia: Department of Agriculture Chemistry, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Bushra Khan: Department of Environmental Sciences, University of Peshawar, Khyber Paakhtunkhwa 25000, Pakistan
Haroon Shahzad: Arid Zone Research Center, Pakistan Agriculture Research Council, Dera Ismail Khan 29120, Pakistan
Shazma Anwar: Department of Agronomy, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Haroon Ilahi: Department of Agriculture, University of Swabi, Swabi 23561, Pakistan
Manzoor Ahmad: Department of Soil Science, Bacha Khan University, Khyber Pakhtun 24420, Pakistan
Hamida Bibi: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan
Muhammad Adnan: Department of Agronomy, College of Agriculture, University of Sargodha, Punjab 40100, Pakistan
Farmanullah Khan: Department of Soil and Environmental Science, The University of Agriculture Peshawar, Khyber Pakhtun 25000, Pakistan

Sustainability, 2021, vol. 13, issue 4, 1-17

Abstract: Nitrogen (N) and Phosphorus (P) deficiency is a major yield limiting factor across the globe and their proper management plays a vital role in optimizing crop yield. This field experiment was conducted to assess the impact of soil and plant nitrogen N and P ratio on the growth and yield of wheat ( Triticum aestivum L.) in alkaline calcareous soil. The study consisted of various levels of nitrogen (0, 40, 80, and 160 kg ha −1 as urea) and phosphorus (0, 30, 60, and 90 kg P 2 O 5 ha −1 as diammonium phosphate), and was carried out in randomized complete block design (RCBD) with factorial arrangement having three replications. The result showed that the addition of 160 kg N ha −1 significantly improved biological yield (10,052 kg ha −1 ), grain weight (3120 kg ha −1 ), chlorophyll content at tillering stage soil plant analysis development (SPAD) value (35.38), N uptake in straw (33.42 kg ha −1 ), and K uptake in straw (192 kg ha −1 ) compared to other N levels. In case of P, 90 kg P 2 O 5 ha −1 had resulted maximum biological yield (9852 kg ha −1 ), grain yield (3663 kg ha −1 ), chlorophyll content at tillering stage (SPAD value 34.36), P (6.68 mg kg −1 ) and K (171 kg ha −1 ) uptake in straw. The sole use of N and P have positively influenced the biological and grain yield but their interaction didn’t response to biological yield. The present study reveals that SPAD value (chlorophyll meter) is the better choice for determining plant N and P concentrations to estimate the yield potential.

Keywords: chlorophyll content; NPK uptake; soil N; Triticum aestivum L.; P concentration (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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