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- Title
Nutrient stoichiometry and growth characteristics of wheat (Triticum aestivum L.) grown with various combinations of nitrogenous and phosphatic fertilizers under alkaline conditions.
- Authors
Hussain, Shakir; Ashraf, Muhammad; Masood, Sajid; Suleman, Muhammad; Hussain, Sajid; Abid, Muhammad
- Abstract
Inadequate and imbalanced use of plant nutrients might be the major contributing factor towards low productivity of wheat (Tritium aestivum L.) in Pakistan. A field study was planned under alkaline conditions to evaluate the effect of various combinations of nitrogenous (N) and phosphatic (P) fertilizers on growth and yield characteristics of wheat. Experimental plan comprised of seven treatments including T1: control, T2: NP + CAN, T3: NP + urea, T4: NP plus + CAN, T5: NP plus + urea, T6: DAP + CAN and T7: DAP + urea with three replications. Plant growth and yield parameters of wheat in terms of plant height, number of tillers plant-1, number of spikes plant-1, spike length and grain yield were significantly (p= 0.05) affected by different combinations of N and P fertilizers. Among different fertilizer combinations, NP + CAN showed highest potential for improving wheat growth, yield and nutrients contents in shoots and grains. The said set of treatments improved number of tillers plant-1 by 123.8%, number of spikes plant-1 by 110.7%, spike length by 119.5%, and grain yield by 139.5% compared to control. Nutrient concentrations in plant tissues was also significantly (p= 0.05) affected at different growth stages by fertilizer combinations, with maximum increase by NP + CAN. At tillering stage, NP + CAN increased total shoot N by 171.4%, NH4+-N by 148.9%, NO3-- N by 153.5%, shoot P by 101%, and shoot K by 40.14% compared to control. In grains, total N increased by 75.14%, NH4+-N by 67.98%, NO3--N by 206.9%, P by 86.28%, and K by 24.13% with NP + CAN compared to control. NP + CAN fertilizer combination also increased total N by 53.57%, mineral N by 64.83%, NH4+-N by 46.60%, NO3--N by 100%, and P by 137.8% in soil compared to control. Among different N and P fertilizers combinations, wheat crop was most responsive to NP + CAN, suggesting that said fertilizers combination could be a promising option for improving wheat productivity under alkaline conditions.
- Subjects
PAKISTAN; PHOSPHATE fertilizers; WHEAT; GRAIN yields; PLANT nutrients; STOICHIOMETRY; PLANT yields; NITROGEN fertilizers; FERTILIZERS
- Publication
Soil & Environment, 2022, Vol 41, Issue 2, p103
- ISSN
2074-9546
- Publication type
Article
- DOI
10.25252/SE/2022/242861