Mitigating greenhouse gas emissions and ammonia volatilization from cotton fields by integrating cover crops with reduced use of nitrogen fertilizer

Sun, Guilan; Zhang, Zhenggui; Xiong, Shiwu; Guo, Xiaoyan; Han, Yingchun; Wang, Guoping; Feng, Lu; Lei, Yaping; Li, Xiaofei; Yang, Beifang; Xing, Feifei; Xin, Minghua; Chen, Huanxuan; Li, Yabing; Wang, Zhanbiao

doi:10.1016/j.agee.2022.107946

Cited by 18 publications

(8 citation statements)

References 44 publications

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“…N 2 O emission increases with the increase of chemical nitrogen fertilizer (urea), with results that are consistent with those of previous authors [38][39][40]. However, some researchers have shown that green manure helps improve N use efficiency and reduces N 2 O emissions [40,41] due to the ability of appropriate organic substitution ratios to influence soil physicochemical properties and ammonia-oxidising bacteria (AOB) community structure, thereby reducing the AOB contribution of N 2 O [42].…”

Section: Influence Of Os-urea Substitution Ratio On N 2 O Emissionsupporting

confidence: 88%

Green Manuring with Oilseed Rape (Brassica napus L.) Mitigates Methane (CH4) and Nitrous Oxide (N2O) Emissions in a Rice-Ratooning System in Central China

Yao,

Zhu,

Yang

et al. 2024

Agriculture

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The use of oilseed rape (OS, Brassica napus L.) as a winter green manure is crucial for enhancing soil fertility and reducing chemical N application in paddy fields. However, the impacts of replacing varying amounts of chemical N with OS on CH4 and N2O emissions in paddy soils have not been well evaluated. In this study, GHG emissions, soil properties and OS decomposition in a rice-ratooning system with different OS-urea N replacement rates (0%, 25%, 50%, 75% and 100%) were investigated. Our results indicate that 84.7–90.7% of the initial C and 97.5–98.4% of the N were released during the 192-day decomposition process, and that the mineralization patterns of net C and net N in the OS residue were consistent with a single exponential decay model. The lowest CH4 emissions (9.97 g m−2) were observed at 0% OS, while the highest N2O emissions (0.40 g m−2) were observed at this level of substitution. Conversely, the highest CH4 emissions (20.71 g m−2) and lowest N2O emissions (0.07 g m−2) were observed at 100% OS. Compared to 0% substitution, 25% substitution significantly decreased GWP and GHGI without reducing rice grain yield. Environmental parameters such as soil redox, NH4+-N and residual N and C were shown to be significantly associated with CH4 emissions, whereas soil redox, NH4+-N and residual C were the main drivers of N2O emissions. In conclusion, 25% substitution of OS was the most cost-effective measure for balancing greenhouse gas emission and rice yield.

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Section: Influence Of Os-urea Substitution Ratio On N 2 O Emissionsupporting

confidence: 88%

Green Manuring with Oilseed Rape (Brassica napus L.) Mitigates Methane (CH4) and Nitrous Oxide (N2O) Emissions in a Rice-Ratooning System in Central China

Yao,

Zhu,

Yang

et al. 2024

Agriculture

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“…The sudden incorporation of crop straw into soil could lead to seasonal nitrogen deficiency in crops ( Chen et al., 2016 ). It is possibly due to the modification of straw decomposition on soil physical properties, which encouraged the breakdown and reproduction of microorganisms, and then induced nitrogen fixation in the process ( Huang et al., 2021 ; Sun et al., 2022 ). Therefore, straw nitrogen played an indispensable role in increasing the soil organic nitrogen pool, which was usually mineralized or immobilized when supplying crops ( Zhang J. T. et al., 2017 ).…”

Section: Discussionmentioning

confidence: 99%

“…Soil nitrogen and straw nitrogen could synergistically play a huge advantage in lowering production costs (mainly by cutting artificial nitrogen application) and reducing environmental pollution when it comes to economic and ecological benefits ( Sun et al., 2022 ). However, we have not conducted thorough research on the standard measurement of environmental pollution indicators (the value of greenhouse gas emissions under different treatments and whether there are differences) ( Huang et al., 2022 ; Zhang A. F. et al, 2017 ).…”

Section: Discussionmentioning

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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“…In the representative demonstration, the NO X gas emission from the soil sample (23 cm × 19 cm × 4 cm) fertilized with 5 g urea can be detected at a much larger response than the un-fertilized control sample after three days (Figure 8d), which is consistent with previous literature reports. [7,96] Although the sensor operated at room temperature is largely influenced by the RH (50-60% in the soil environment) to give a positive response (Figure S19, Supporting Information), the sensor operated at 50°C from self-heating largely eliminates the humidity effect to allow for accurate gas detection. As a result, the positive response is reduced to only 0.2‰ in unfertilized soils (RH of 50-60%) to demonstrate a very weak influence of humidity.…”

Section: Application Of the Vo X -Doped Lig Multi-parameter Sensor Fo...mentioning

confidence: 99%

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

et al. 2023

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Monitoring nitrogen utilization e ciency and soil temperature in agricultural systems for timely intervention is essential to monitor crop health, promote sustainable and precision agriculture, and reduce environmental pollution. Therefore, it is of vital signi cance to develop a multi-parameter sensor for effectively and accurately decoupled detection of nitrogen loss and soil temperature, which is yet to be reported. Herein, this work presents a high-performance multi-parameter sensor based on vanadium oxide (VO X )-doped laser-induced graphene (LIG) foam to completely decouple nitrogen oxides (NO X ) and temperature. By exploiting the laser-assisted synthesis, the highly porous 3D VO X -doped LIG foam composite is readily obtained by laser scribing of vanadium sul de (V 5 S 8 )-doped block copolymer and phenolic resin self-assembled lms. Compared with the intrinsic LIG, the heterojunction formed at the LIG/VO X interface provides the sensor with a signi cantly enhanced response to NO X and an ultralow limit of detection (LOD) of 3 ppb at room temperature. Meanwhile, the sensor can accurately detect temperature over a wide linear range of 10-110℃ with a small detection limit of 0.2℃. The encapsulation of the sensor with a soft membrane further allows for temperature sensing without being affected by NO X , presenting an effective strategy to decouple nitrogen loss and soil temperature for accurate soil environmental monitoring. The sensor without encapsulation but operated at elevated temperature removes the in uences of ambient relative humidity and temperature variations for accurate NO X measurements. The capability to simultaneously detect ultra-low NO X concentrations and small temperature changes paves the way for the development of future multimodal electronic devices with decoupled sensing mechanisms for health monitoring and precision agriculture.

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Mitigating greenhouse gas emissions and ammonia volatilization from cotton fields by integrating cover crops with reduced use of nitrogen fertilizer

Cited by 18 publications

References 44 publications

Green Manuring with Oilseed Rape (Brassica napus L.) Mitigates Methane (CH4) and Nitrous Oxide (N2O) Emissions in a Rice-Ratooning System in Central China

Green Manuring with Oilseed Rape (Brassica napus L.) Mitigates Methane (CH4) and Nitrous Oxide (N2O) Emissions in a Rice-Ratooning System in Central China

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

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

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