Tiller fertility is critical for improving grain yield, photosynthesis, and nitrogen efficiency in wheat

Ding, Yonggang; ZHANG, Xin-bo; Ma, Quan; LI, Fu-jian; Tao, Rongrong; Zhu, Min; Li, Chunyan; Zhu, Xin-kai; Guo, Wenshan; Ding, Jinfeng

doi:10.1016/j.jia.2022.10.005

Cited by 15 publications

(11 citation statements)

References 58 publications

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“…N fertilizer is the most direct cultivation measure to regulate population structure and promote yield improvement. It has been confirmed that reasonable N supply during the growth period of wheat was beneficial for cultivating strong seedlings, promoting tiller and panicle formation, improving DMA post-anthesis, and increasing the grain weight ( Duan et al., 2019 ; Zhang et al., 2020 ; Ding et al., 2023 ). In this study, M1 had the highest stem and tiller number, DMA and LAI at the over-wintering and jointing stages.…”

Section: Discussionmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

“…A total of 1000 grains were counted randomly to determine the 1000-grain weight. The grain yield and 1000-grain weight were converted into the standard weight at a moisture content of 13%, respectively (Ding et al, 2023). A total of 20 plants were sampled from each plot at the key growth stages of wheat: over-wintering (GS16), jointing (GS32), booting (GS45), anthesis (GS60), and maturity (GS92).…”

Section: Yield and Yield Componentsmentioning

confidence: 99%

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Split application of polymer-coated urea combined with common urea improved nitrogen efficiency without sacrificing wheat yield and benefits while saving 20% nitrogen input

Ma,

Tao,

Jia

et al. 2024

Front. Plant Sci.

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Controlled-release nitrogen fertilizer (CRNF) has been expected to save labor input, reduce environmental pollution, and increase yield in crop production. However, the economic feasibility is still controversial due to its high cost. To clarify the suitable application strategy of CRNF in promoting the yield, nitrogen use efficiency and income on wheat grown in paddy soil, four equal N patterns were designed in 2017−2021 with polymer-coated urea (PCU) and common urea as material, including PCU applied once pre-sowing (M1), PCU applied 60% at pre-sowing and 40% at re-greening (M2), 30% PCU and 30% urea applied at pre-sowing, 20% PCU and 20% urea applied at re-greening (M3), and urea applied at four stage (CK, Basal:tillering:jointing:booting=50%:10%:20%:20%). In addition, M4−M6, which reduced N by 10%, 20% and 30% respectively based on M3, were designed in 2019−2021 to explore their potential for N-saving and efficiency-improving. The results showed that, compared with CK, M1 did not significantly reduce yield, but decreased the average N recovery efficiency (NRE) and benefits by 1.63% and 357.71 CNY ha−1 in the four years, respectively. M2 and M3 promoted tiller-earing, delayed the decrease of leaf area index (LAI) at milk-ripening stage, and increased dry matter accumulation post-anthesis, thereby jointly increasing spike number and grain weight of wheat, which significantly increased yield and NRE compared with CK in 2017−2021. Due to the savings in N fertilizer costs, M3 achieved the highest economic benefits. With the 20% N reduction, M5 increased NRE by 16.95% on average while decreasing yield and net benefit by only 6.39% and 7.40% respectively, compared with M3. Although NRE could continue to increase, but the yield and benefits rapidly decreased after N reduction exceeds 20%. These results demonstrate that twice-split application of PCU combined with urea is conducive to achieving a joint increase in yield, NRE, and benefits. More importantly, it can also significantly improve the NRE without losing yield and benefits while saving 20% N input.

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Section: Discussionmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Yield and Yield Componentsmentioning

confidence: 99%

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Split application of polymer-coated urea combined with common urea improved nitrogen efficiency without sacrificing wheat yield and benefits while saving 20% nitrogen input

Ma,

Tao,

Jia

et al. 2024

Front. Plant Sci.

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“…The sub-area was three different nitrogen sources (T, F, and J), with a total of 12 treatments ( Table 3 ). Since there were some studies of related varieties in our research group, we cited their conclusions to continue the experiment ( Ding et al., 2022 ). In early November 2021, artificial spot sowing was carried out in pots, with a sowing depth of 2 cm, 12 seeds per pot, 8 seedlings left, and 1 cm soil covered after sowing.…”

Section: Methodsmentioning

confidence: 99%

The fate of nitrogen from different sources in a rice-wheat rotation system – A 15N labeling study

Jia,

Ma,

et al. 2023

Front. Plant Sci.

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High loss and low nitrogen (N) efficiency in agricultural production is severe. Also, ammonia volatilization and N leaching aggravated environmental pollution. The eutrophication of surface water and the emissions of N2O increased, hence green fertilization management urgently needs to be rationalized. Coordinating N supply from different sources has been shown to reduce environmental pollution. Therefore, this study was dedicated to clarifying the transport of N sources in the rice-wheat rotation system. The stable isotope tracer technology was used to label fertilizer (F), soil (T), and straw (J) with 15N, respectively. The utilization of N by crops (the N ratio in organs), as well as the residual N in soil and loss status, were measured. According to the potential of response to N, all the wheat cultivars were divided into groups with high (HNV) and low efficiency (LNV). The N contribution ratio showed that 43.28%~45.70% of total N accumulation was from T, while 30.11%~41.73% and 13.82%~24.19% came from F and J. The trend in soil N residue (T > F > J) was consistent with the above, while it was the opposite in N loss (T< F< J). The seasonal effectiveness showed that T achieved the highest N utilization efficiency (31.83%~44.69%), followed by F (21.05%~39.18%) and J (11.02%~16.91%). The post-season sustainability showed that T decreased the most in soil N residue (2.08%~12.53%), and F decreased the most in N accumulation (9.64%~18.13%). However, J showed an increase in N recovery rate (2.87%~5.89%). N translocation and distribution showed that N from different sources in grains was significantly higher than that in stems, glumes, and leaves. The ratio of HNV (75.14%~79.62%) was higher than that of LNV (71.90%~74.59%) in grain, while it was the opposite in other organs. Plant N accumulation, soil N supply, and straw N transformation were determined jointly by the three N sources, thus reducing N loss and N2O production. Therefore, the results will highlight the insights for constructing local N and emission reduction models.

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“…Nitrogen (N) is a decisive inorganic element that increases plant growth, leaf area, radiation interception by leaves, leaf emergence, photosynthetic capacity, and root vigour 32 . Nitrogen is mainly taken up by the root epidermal extensions and transported via the apoplast pathway toward the xylem fibres with the help of carrier-mediated channels such as nitrate transporters and ammonium transporters through facilitated diffusion 33 .…”

Section: Introductionmentioning

confidence: 99%

Zinc and nitrogen mediate the regulation of growth, leading to the upregulation of antioxidant aptitude, physio-biochemical traits, and yield in wheat plants

Shehzadi,

Mahmood,

Kaleem

et al. 2024

Sci Rep

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An ample amount of water and soil nutrients is required for economic wheat production to meet the current food demands. Nitrogen (N) and zinc (Zn) fertigation in soils can produce a substantial wheat yield for a rapidly increasing population and bring a limelight to researchers. The present study was designed to ascertain N and Zn’s synergistic role in wheat growth, yield, and physio-biochemical traits. A pot experiment was laid out under a complete randomized design with four N levels (N1-0, N2-60, N3- 120, and N4-180 kg ha−1), Zn (T1-0, T2-5, T3-10, and T4-15 kg ha−1) with four replications. After the emergence of the plants, N and Zn fertigation was applied in the soil. The growth traits were considerably increased by combined applications as compared to the sole applications of the N and Zn. The photosynthetic pigments were found maximum due to combined applications of N and Zn, which were positively associated with biomass, growth, yield, and wheat grain quality. The combined application also substantially enhances the antioxidant enzyme activities to scavenge the ROS as H2O2 and reduce lipid peroxidation to protect the permeability of the biologic membranes. The combined higher applications of N and Zn were more responsive to ionic balance in a shoot by maintaining the Na+ for osmotic adjustments, accumulating more Ca2+ for cellular signaling; but, combined applications resulted in K+ reduction. Our present results suggest that appropriate sole or combined applications of N and Zn improve wheat's growth, yield, and antioxidant mechanisms. Previous studies lack sufficient information on N and Zn combined fertigation. We intend to investigate both the sole and combined roles of N and Zn to exploit their potential synergistic effects on wheat.

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Tiller fertility is critical for improving grain yield, photosynthesis, and nitrogen efficiency in wheat

Cited by 15 publications

References 58 publications

Split application of polymer-coated urea combined with common urea improved nitrogen efficiency without sacrificing wheat yield and benefits while saving 20% nitrogen input

Split application of polymer-coated urea combined with common urea improved nitrogen efficiency without sacrificing wheat yield and benefits while saving 20% nitrogen input

The fate of nitrogen from different sources in a rice-wheat rotation system – A 15N labeling study

Zinc and nitrogen mediate the regulation of growth, leading to the upregulation of antioxidant aptitude, physio-biochemical traits, and yield in wheat plants

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