Reducing yield-scaled global warming potential and water use by rice plastic film mulching in a winter flooded paddy field

Zhang, Guangbin; Yang, Yuting; Huang, Qiong; Ma, Jing; Yu, Haiyang; Song, Kaifu; Dong, Yujiao; Lu, Shouxiang; Xu, Hong‐Guang

doi:10.1016/j.eja.2020.126007

Cited by 24 publications

(4 citation statements)

References 39 publications

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“…Both spikelets per panicle and grain filling percentage are determined after jointingbooting stage (Zhang et al, 2017a). Plastic mulching can increase the soil temperature during the early growth stages of rice and promote rice tilling, which is essential for improving the rice grain yield (Liu et al, 2013;Zhang et al, 2020;Zhang et al, 2017a). Here, our results showed that plastic mulching considerably increased the effective panicles per m -2 and improved the average rice yield (Table 3).…”

Section: Nitrogen Use Efficiency Of Ricementioning

confidence: 52%

“…In the rice growing area of the cold region, the plastic mulching cultivation system compensates for the shortcomings associated with a severe shortage of light and heat, attenuating low-temperature limitations during the early growth stages of rice. Its warming effect is most prominent from transplantation to the maximum tillering stage of rice, which considerably increases the rice grain yield (Zhang et al, 2020;Zhang et al, 2017b). However, in the plastic mulching cultivation system, higher soil temperatures promote the mineralization of soil organic matter (Fang et al, 2005) and may thus lead to a decrease in the soil organic matter stocks, further causing soil fertility declines in the long run (Fan et al, 2012;Ma et al, 2018;Pan et al, 2004;Steinmetz et al, 2016;Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Plastic Mulching and Straw Incorporation on Rice Yield and Nitrogen Use Efficiency in a Cold Region

et al. 2021

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For the synergistic improvement of soil fertility and rice yields in a cold region, we investigated the effects of plastic mulching with different straw incorporation rates on the rice yield and nitrogen use efficiency in a rice growing area of a cold region. The field experiment was conducted using the Jijing 88 rice cultivar, and set up four straw incorporated treatment: 20% (S1), 40% (S2), 60% (S3) and 100% (S4) under two conditions: mulching (M) and without mulching (NM). The results showed that under the same straw incorporation rates: (1) Plastic mulching increased the total soil nitrogen and organic matter contents while improving the grain yield; the yield increases were 2.8-14.9% in 2016 and 1.4-12.3% in 2017. (2) The mulched treatment improved the net photosynthetic rate, the maximum tiller number, the crop growth rate of the later growth stages, and the shoot dry weight. (3) The recovery efficiency, agronomic efficiency, and partial factor productivity of the nitrogen applications were all higher under the mulched treatment than under the non-mulched treatment. In a comparison of the different straw incorporation treatments, above three indicators consistently increased before they decreased, and significantly higher levels were reached under the 40% straw incorporation treatment with mulching than under the other treatments.

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Section: Nitrogen Use Efficiency Of Ricementioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Effects of Plastic Mulching and Straw Incorporation on Rice Yield and Nitrogen Use Efficiency in a Cold Region

et al. 2021

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“…The CH 4 and N 2 O fluxes were simultaneously monitored throughout the 2017 and 2018 growing seasons using the static chamber method [19]. The base of the closed chamber area was 45 cm × 45 cm and it was installed in the plot before planting.…”

Section: Gas Sample Collection and Analysismentioning

confidence: 99%

CH4 and N2O Emission and Grain Yield Performance of Three Main Rice-Farming Patterns in Central China

Zhu

et al. 2023

Agronomy

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This study focuses on the development of more cropping systems in response to global warming and food security concerns. A two-year field experiment (2017–2018) was conducted to investigate the effects of greenhouse gases (GHGs), soil environmental factors and yield on traditional double-cropping rice (DR), maize rice (MR) and ratooning rice (Rr). The results showed a significant annual effect of temperature and rainfall on GHG emissions under different cropping systems. Annual CH4 emissions under MR and Rr were significantly lower than under DR. Compared to DR, the highest cumulative N2O emissions were observed in MR (14.9 kg·ha−1) with a reduction of 23.7% in Rr. In addition, the upland crops significantly reduced CH4 emissions for late rice, while N2O emissions increased by 20.6%. Compared with DR and Rr, global warming potential (GWP) and greenhouse gas intensity (GHGI) were significantly lower for MR (p < 0.05). Meanwhile, the annual yield of MR (16.40 t·ha−1) was 8.1% and 2.4% higher than that of DR and Rr, respectively. This study further found that soil temperature and NH4+-N content were positively correlated with CH4 and N2O emissions, and soil moisture was positively correlated with N2O emission. Thus, we concluded that MR has the greatest potential to improve crop yield and mitigate GHG emissions in central China.

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“…Zhang et al 2020) at 3-7 d intervals after RG incorporation until the harvest of the ratoon crop. The pot with plant was placed in a closed PVP pipe chamber (height 110 cm, diameter 25 cm).…”

mentioning

confidence: 99%

Does replacing chemical fertilizer with ryegrass (Lolium multiflorum Lam.) mitigate CH4 and N2O emissions and reduce global warming potential from paddy soil?

Yang

Yao

et al. 2022

Plant Soil

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The incorporation of ryegrass (Lolium multi orum Lam.; RG), a winter grass manure, could partly replace chemical N and reduce N loss during the succeeding rice seasons, but little is known about its impact on greenhouse gas emission. This study investigated the effect of different RG-urea substitution ratios (0%, 25%, 50%, 75% and 100%) on C and N release, CH 4 and N 2 O emissions in a paddy soil.(Methods) Gas samples for CH 4 and N 2 O uxes measurement were collected by using a closed chamber and determined by chromatograph method. C and N release from the incorporated RG residue were tested by a mesh bag method.(Results) C and N release from RG followed a single exponential decay model, with 95.5%-97.8% of the original C and 98.7%-99.3% of N released during 192 days. RG-urea substitution ratio increased CH 4 emission, but was negatively correlated with N 2 O emission. In comparison with 0% substitution, global warming potential (GWP) and greenhouse gas intensity (GHGI) were not signi cantly different for the 25% and 50% RG substitutions, but were signi cantly higher for the 75% and 100% substitutions (P<0.05). Soil redox, C and N remaining in litter residue were key characteristics explaining CH 4 emission, while NH 4 + -N and NO 3 --N concentrations were correlated with the variation of N 2 O emission. (Conclusion)The increased CH 4 emission by RG incorporation could be offset by the reduced N 2 O emission when RGurea substitution ratio was 50% or less.

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Reducing yield-scaled global warming potential and water use by rice plastic film mulching in a winter flooded paddy field

Cited by 24 publications

References 39 publications

Effects of Plastic Mulching and Straw Incorporation on Rice Yield and Nitrogen Use Efficiency in a Cold Region

Effects of Plastic Mulching and Straw Incorporation on Rice Yield and Nitrogen Use Efficiency in a Cold Region

CH4 and N2O Emission and Grain Yield Performance of Three Main Rice-Farming Patterns in Central China

Does replacing chemical fertilizer with ryegrass (Lolium multiflorum Lam.) mitigate CH4 and N2O emissions and reduce global warming potential from paddy soil?

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