Soil warming and straw return impacts on winter wheat phenology, photosynthesis, root growth, and grain yield in the North China Plain

Wu, Gong; Ling, Jun; Liu, Zi-Xi; Xu, Yi-Ping; Chen, Xianmin; Wen, Yuan; Zhou, Shun-Li

doi:10.1016/j.fcr.2022.108545

Cited by 30 publications

(8 citation statements)

References 49 publications

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“…Being an essential nutrient, N plays a vital role in photosynthetic activity, nitrogen assimilation enzyme, and crop growth [16,17]. Therefore, N application improved all growth and physiological parameters of wheat, such as Pn, Tr, total Chl content, NR and GS activities, and LAI in this study (Table 1), which might be attributed to its involvement in delaying leaf senescence and boosting leaf nitrogen assimilation and leaf area [14].…”

Section: Photosynthesis N Assimilation Wue Anr and Yieldmentioning

confidence: 53%

“…NR and GS activities were measured with the method of Geng et al [17] in fully expanded flag leaves (at the flowering stage). The leaf area index (LAI) was determined according to the method of Wu et al [16] at the flowering stage.…”

Section: Physiological Characteristicsmentioning

confidence: 99%

“…Meanwhile, nitrogen is a constitute element of chlorophyll (Chltotal), and more chlorophyll results in an increased photosynthetic active leaf area [14,15]. Photosynthetic capacities (leaf area index, Chl-total, Pn and Tr) are positively correlated with grain yield [16]. In addition, nitrogen is also an important component of plant enzymes.…”

Section: Introductionmentioning

confidence: 99%

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Straw Residual Retention on Wheat Photosynthetic Characteristics, Utilization of Water and Nitrogen, and Reactive Nitrogen Losses

Li,

Liu,

Peng

et al. 2023

Agronomy

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Straw residual retention is an emerging and promoted practice in rain-fed northwest China, but its effect on wheat photosynthetic characteristics, the utilization of water and nitrogen, and reactive nitrogen losses is poorly understood. A two-year consecutive field experiment was conducted to investigate the impacts of residual incorporation into soil and nitrogen application on wheat nitrogen and water utilization, yield and nitrogen losses during 2018–2020. The split-plot design of two tillage systems [conventional tillage (CT), and straw residue incorporated into soil (SR)] and three nitrogen rates [0 kg ha−1 (N0), 144 kg ha−1 (N144), 180 kg ha−1 (N180)] was implemented. Our results demonstrated that compared to CT, SR significantly influenced several key metrics. Compared with CT, SR increased the wheat photosynthetic rate (Pn), transpiration rate (Tr), leaf area index (LAI), leaf total chlorophyll (Chl-total), glutamine synthetase (GS) and nitrate reductase (NR) by an average of 5.38%, 12.75%, 8.21%, 5.79%, 16.21% and 20.08%, respectively (p < 0.05). In addition, SR increased the wheat grain yield and nitrogen uptake accumulation (NUA), evapotranspiration (ET), precipitation storage efficiency (PSE), and mineral nitrogen residual after harvest (except for SR-N180 in 2019–2020), but decreased the apparent nitrogen recovery when compared with CT. However, there was an insignificant difference in the ammonia (NH3) volatilization and nitrous oxide (N2O) emissions of SR and CT. With an increase in the N-fertilization rate, the Pn and Tr, NH3 volatilization, N2O emission, mineral nitrogen residual (except for SR-N180 in 2019–2020), LAI, Chl-total (except for SR-N180 and CT-N180 in 2018–2019), GS, NR, grain yield, WUE, and NUA increased significantly; however, the ET, PSE, apparent nitrogen recovery (ANR), and nitrogen harvest index (NHI) decreased significantly. Furthermore, the differences between N144 and N180 in terms of the photosynthetic characteristics of wheat, the utilization of water and nitrogen, and yield were not significant. Overall, straw retention with N144 could be recommended as a resource-saving and environment-friendly management practice in a rain-fed winter wheat–fallow cropping system in northwest China.

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Section: Photosynthesis N Assimilation Wue Anr and Yieldmentioning

confidence: 53%

Section: Physiological Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Straw Residual Retention on Wheat Photosynthetic Characteristics, Utilization of Water and Nitrogen, and Reactive Nitrogen Losses

Li,

Liu,

Peng

et al. 2023

Agronomy

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“…Moreover, the correlation coefficient between RP numbers at 0‐to‐10‐cm depth and wheat yield was lower than that between RP numbers at 0‐to‐40‐cm depth and wheat yield and between RP numbers at 10‐to‐40‐cm depth and wheat yield (Table 3), which indicates that deep roots may have a positive impact on wheat yield. The influence of the root on the aboveground production of wheat is both limited and complex (He et al., 2019; Qin et al., 2018), and improved root growth could promote crop yield (Wang et al., 2022; Wu et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

Post‐paddy tillage affects soil physical processes of rain‐fed rice–wheat rotation

Liang

Ding

et al. 2022

Soil Science Soc of Amer J

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Rain‐fed rice (Oryza sativa L.)–wheat (Triticum aestivum L.) (RFRW) rotation can be a resource‐saving solution for sustainable cropping systems. However, conventional puddled and flood transplanted rice, repeat tractor compaction, and years of shallow rotary tillage and paddy–dryland rotation had a negative impact on soil physical in the RFRW rotation (e.g., soil consolidation and shrinkage, shallow tillage layer). A 4‐yr field experiment was established to determine if different post‐paddy tillage systems would improve soil physical properties and plant factors. We compared no‐tillage (NT), conventional rotary tillage (RT), and deep tillage (DT) to improve the deteriorated soil structure, soil water, wheat root system, and grain yield. The results indicated that DT increased the average soil water content by 7.25% and 9.98%, increased field capacity by 9.58 and 5.23%, and decreased the soil bulk density by 6.2 and 2.2% at 0‐to‐20‐cm soil depth in 4 yr as compared to NT and RT, respectively. The NT increased the average relative soil moisture and had higher soil bulk density at 0‐to‐20‐cm depth. The DT deepened the root growth and increased the total root point numbers by 21.0 and 22.8% at 0‐to‐40‐cm soil depth in 4 yr, respectively, compared with NT and RT. In 4 yr, the DT significantly achieved higher average grain yield by 5.3 and 13.5%, respectively, compared with NT and RT. Overall, DT after rice was shown to be a promising management approach for improving wheat yields and might enable sustainable intensification of RFRW rotation.

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“…Drought affects agricultural production by reducing chlorophyll water content and vegetation (Methobo et al, 2017) and changing the intensity of photosynthesis (Wu et al, 2022). Most records uctuate in the range of 0.05, but the maximum NDVI value at this location was between − 0.2 and 0.72.…”

Section: Observed Drought Occurrencementioning

confidence: 97%

Remote sensing assessment of multi-year drought vulnerability of agriculture in Kangavar, Kermanshah Province, Western Iran

Buzhani,

Sadr,

Sobhanardakani

et al. 2023

Nat Hazards

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The current study investigated the spatiotemporal distribution and detection of drought severity using ground indices in R-Studio software and applying indices on the images of Landsat 8 and Sentinel 2 satellites in the growing season and annually. The outcomes showed that typical months had the largest range in terrestrial indices results, and the NDVI index had the greatest compatibility with SPEI. By comparing these two times, during the growing season, plant health was evident in the northwest and in annual images in the northeast. Moreover, a negative correlation was found between LST and NDVI in elevation, which was more moderate at northern heights. High mean annual temperatures during growing seasons were common in the east and south. The eastern side of the study area had high annual vegetation density, but soil moisture was higher in the southwest. Floods negatively affected plant health; with the 2019 ood, the canola yield was very low. In summary, Sentinel 2 images showed drought better in the growing season and Landsat 8 images showed drought better in the dry season or at the end of plant growth.

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Soil warming and straw return impacts on winter wheat phenology, photosynthesis, root growth, and grain yield in the North China Plain

Cited by 30 publications

References 49 publications

Straw Residual Retention on Wheat Photosynthetic Characteristics, Utilization of Water and Nitrogen, and Reactive Nitrogen Losses

Straw Residual Retention on Wheat Photosynthetic Characteristics, Utilization of Water and Nitrogen, and Reactive Nitrogen Losses

Post‐paddy tillage affects soil physical processes of rain‐fed rice–wheat rotation

Remote sensing assessment of multi-year drought vulnerability of agriculture in Kangavar, Kermanshah Province, Western Iran

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