Effect of slow release nitrogenous fertilizers and biochar on growth, physiology, yield, and nitrogen use efficiency of sunflower under arid climate

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dc.authoridHasnain, Muhammad Usama/0009-0006-5577-7652
dc.authoridRahman, Muhammad Habib ur/0000-0002-2823-9959
dc.authoridIqbal, Rashid/0000-0003-0473-889X
dc.authoridHussain, M. Iftikhar/0000-0002-9710-3801
dc.contributor.authorWaqar, Muhammad
dc.contributor.authorHabib-ur-Rahman, Muhammad
dc.contributor.authorHasnain, Muhammad Usama
dc.contributor.authorIqbal, Shahid
dc.contributor.authorGhaffar, Abdul
dc.contributor.authorIqbal, Rashid
dc.contributor.authorHussain, Muhammad Iftikhar
dc.date.accessioned2024-12-24T19:24:50Z
dc.date.available2024-12-24T19:24:50Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractSunflower plants need nitrogen consistently and in higher amount for optimum growth and development. However, nitrogen use efficiency (NUE) of sunflower crop is low due to various nitrogen (N) losses. Therefore, it is necessary to evaluate the advanced strategies to minimize N losses and also improve sunflower productivity under arid climatic conditions. A field trial was conducted with four slow release nitrogenous fertilizers [SRNF (bacterial, neem, and sulfur-coated urea and N loaded biochar)] and three N levels (100% = 148 kg N-ha(-1), 80% = 118 kg N-ha(-1), and 60% = 89 kg N-ha(-1)) of recommended application (100%) for sunflower crop under arid climatic conditions. Results showed that neem-coated urea at 148 kg N-ha(-1) significantly enhanced crop growth rate (CGR) (19.16 g-m(-2)-d(-1)) at 60-75 days after sowing (DAS); leaf area index (2.12, 3.62, 5.97, and 3.00) at 45, 60, 75, and 90 DAS; and total dry matter (14.27, 26.29, 122.67, 410, and 604.33 g m(-2)) at 30, 45, 60, 75, and 90 DAS. Furthermore, higher values of net leaf photosynthetic rate (25.2 mu mol m(-2) -s(-1)), transpiration rate (3.66 mmol-s(-1)), and leaf stomatal conductance (0.39 mol-m(-2)-s(-1)) were recorded for the same treatment. Similarly, neem-coated urea produced maximum achene yield (2322 kg ha(-1)), biological yield (9000 kg-ha(-1)), and harvest index (25.8%) of the sunflower crop. Among various N fertilizers, neem-coated urea showed maximum NUE (20.20 kg achene yield kg(-1) N applied) in comparison to other slow release N fertilizers. Similarly, nitrogen increment N-60 showed maximum NUE (22.40 kg grain yield-kg(-1) N applied) in comparison to N-80 and N-100. In conclusion, neem-coated urea with 100% and 80% of recommended N would be recommended for farmers to get better sunflower productivity with sustainable production and to reduce the environmental nitrogen losses.
dc.identifier.doi10.1007/s11356-022-19289-6
dc.identifier.endpage52533
dc.identifier.issn0944-1344
dc.identifier.issn1614-7499
dc.identifier.issue35
dc.identifier.pmid35262889
dc.identifier.scopus2-s2.0-85126035359
dc.identifier.scopusqualityQ1
dc.identifier.startpage52520
dc.identifier.urihttps://doi.org/10.1007/s11356-022-19289-6
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6144
dc.identifier.volume29
dc.identifier.wosWOS:000766432300011
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofEnvironmental Science and Pollution Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectLoaded biochar
dc.subjectNeem-coated urea
dc.subjectLeaf photosynthetic rate
dc.subjectStomatal conductance
dc.subjectSulfur-coated urea
dc.titleEffect of slow release nitrogenous fertilizers and biochar on growth, physiology, yield, and nitrogen use efficiency of sunflower under arid climate
dc.typeArticle

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