Nitrogen fertilization coupled with iron foliar application improves the photosynthetic characteristics, photosynthetic nitrogen use efficiency, and the related enzymes of maize crops under different planting patterns

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dc.contributor.authorNasar, Jamal
dc.contributor.authorWang, Gui-Yang
dc.contributor.authorAhmad, Shakeel
dc.contributor.authorMuhammad, Ihsan
dc.contributor.authorZeeshan, Muhammad
dc.contributor.authorGitari, Harun
dc.contributor.authorAdnan, Muhammad
dc.contributor.authorFahad, Shah
dc.contributor.authorMuhammad, Hayder Bin Khalid
dc.contributor.authorZhou, Xun-Bo
dc.contributor.authorAbdelsalam, Nader R.
dc.contributor.authorAhmed, Gamal A.
dc.contributor.authorHasan, Mohamed E.
dc.date.accessioned2022-10-12T12:04:33Z
dc.date.available2022-10-12T12:04:33Z
dc.date.issued2022-09
dc.descriptionResearch paper in Frontiers in Plant Sci.en_US
dc.description.abstractPhotosynthetic rate (Pn) and photosynthetic nitrogen use efficiency (PNUE) are the two important factors affecting the photosynthesis and nutrient utilization of plant leaves. However, the effect of N fertilization combined with foliar application of Fe on the Pn and PNUE of the maize crops under different planting patterns (i.e., monocropping and intercropping) is elusive. Therefore, this experiment was conducted to determine the effect of N fertilization combined with foliar application of Fe on the photosynthetic characteristics, PNUE, and the associated enzymes of the maize crops under different planting patterns. The results of this study showed that under intercropping, maize treated with N fertilizer combined with foliar application of Fe had not only significantly (p < 0.05) improved physio-agronomic indices but also higher chlorophyll content, better photosynthetic characteristics, and related leaf traits. In addition, the same crops under such treatments had increased photosynthetic enzyme activity (i.e., rubisco activity) and nitrogen metabolism enzymes activities, such as nitrate reductase (NR activity), nitrite reductase (NiR activity), and glutamate synthase (GOGAT activity).Consequently, intercropping enhanced the PNUE and soluble sugar content of the maize crops, thus increasing its yield compared with monocropping. Thus, these findings suggest that intercropping under optimal N fertilizer application combined with Fe foliation can improve the chlorophyll content and photosynthetic characteristics of maize crops by regulating the associated enzymatic activities. Consequently, this results in enhanced PNUE, which eventually leads to better growth and higher yield in the intercropping system. Thus, practicing intercropping under optimal nutrient management (i.e., N and Fe) could be crucial for better growth and yield, and efficient nitrogen use efficiency of maize crops.en_US
dc.description.sponsorshipThis work was supported by the Natural Science Foundation of Guangxi Province (2019GXNSFAA185028)en_US
dc.identifier.citationNasar J, Wang G-Y, Ahmad S, Muhammad I, Zeeshan M, Gitari H, Adnan M, Fahad S, Khalid MHB, Zhou X-B, Abdelsalam NR, Ahmed GA and Hasan ME (2022) Nitrogen fertilization coupled with iron foliar application improves the photosynthetic characteristics, photosynthetic nitrogen use efficiency, and the related enzymes of maize crops under different planting patterns. Front. Plant Sci. 13:988055. doi: 10.3389/fpls.2022.988055en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/24321
dc.language.isoenen_US
dc.publisherFrontiersen_US
dc.subjectintercroppingen_US
dc.subjectphotosynthetic rateen_US
dc.subjectPNUEen_US
dc.subjectnitrogen use efficiencyen_US
dc.subjectenzymatic activitiesen_US
dc.subjectnitrogenen_US
dc.subjectironen_US
dc.titleNitrogen fertilization coupled with iron foliar application improves the photosynthetic characteristics, photosynthetic nitrogen use efficiency, and the related enzymes of maize crops under different planting patternsen_US
dc.typeArticleen_US
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