Nitrogen fertilizer application rates and ratios promote the biochemical and physiological attributes of winter wheat.

Autor: Kubar MS; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Wang C; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Noor RS; Department of Agriculture, Biological, Environment and Energy Engineering, College of Engineering, Northeast Agricultural University, Harbin, China.; Faculty of Agricultural Engineering and Technology, PMAS-Arid Agriculture University, Rawalpindi, Pakistan., Feng M; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Yang W; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Kubar KA; Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan., Soomro K; Department of Plant Pathology, Sichuan Agricultural University, Chengdu, China., Yang C; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Sun H; College of Agriculture, Shanxi Agricultural University, Taigu Jinzhong, China., Mohamed H; Bioinformatics Department, Genetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, Egypt., Mosa WFA; Plant Production Department (Horticulture- Pomology), Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria, Egypt.
Jazyk: angličtina
Zdroj: Frontiers in plant science [Front Plant Sci] 2022 Nov 15; Vol. 13, pp. 1011515. Date of Electronic Publication: 2022 Nov 15 (Print Publication: 2022).
DOI: 10.3389/fpls.2022.1011515
Abstrakt: Improper optimization of the rates and ratios of nitrogen application reduces grain yields and increases the nitrogen loss, thereby affecting environmental quality. In addition, scarcer evidence exists on the integrative approach of nitrogen, which could have effects on the biochemical and physiological characteristics of wheat. Treatments were arranged as nitrogen (N) rates of 00, 75, 150, 225, and 300 kg ha -1 in the main plots, and different nitrogen ratios were organized in subplots at 5:5:0:0 and 6:4:0:0, which were applied at the sowing, jointing, flowering, and grain filling stages. The results revealed that 225 kg N ha -1 significantly enhanced the stomatal conductance ( G s ), photosynthetic rate ( P n ), intercellular CO 2 ( C i ), transpiration rate ( T r ), and total chlorophyll by 28.5%, 42.3%, 10.0%, 15.2%, and 50%, receptively, at the jointing stage in comparison to the control (0 kg N ha -1 ). Nitrogen application of 225 kg ha -1 increased the soil-plant analysis development (SPAD) value and the chlorophyll a, chlorophyll b, and carotenoid contents of winter wheat under the 6:4:0:0 ratio. The trend of the photosynthetic characteristics was observed to be greater at the 6:4:0:0 fertilization ratio compared to that at 5:5:0:0. The photosynthetic rate was significantly associated with the biochemical and physiological characteristics of winter wheat. In conclusion, the nitrogen dose of 225 kg ha -1 and the ratio of 6:4:0:0 (quantity applied at the sowing, jointing, flowering, and grain filling stages) effectively promoted the photosynthetic and other physiological characteristics of winter wheat.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2022 Kubar, Wang, Noor, Feng, Yang, Kubar, Soomro, Yang, Sun, Mohamed and Mosa.)
Databáze: MEDLINE
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