Optimum plastic mulching application to reduce greenhouse gas emissions without compromising on crop yield and farmers' income

Zhang, Li; Qin, Rongzhu; Wei, Huihui; Zhang, Kaiping; Yu, Chunyan; Li, Fengmin; Zhang, Feng

doi:10.1016/j.scitotenv.2021.151998

Cited by 19 publications

(4 citation statements)

References 43 publications

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“…Minimum tillage systems improve water retention in soil while decreasing runoff and nutrient losses [40]. Herbicide usage often rises initially to control weeds without extensive plowing [41]. But overall, reduced tillage techniques help preserve soils and can maintain high long-term productivity.…”

Section: Reduced Tillage Systemsmentioning

confidence: 99%

Horticultural Innovations Elevating Crop Yields and Agricultural Sustainability for a Flourishing Future

Indurthi,

Sarma,

Vinod

2024

PCBMB

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Advancements in horticultural technologies and practices are critical for meeting global food security needs while ensuring environmental sustainability. This paper examines recent innovations that enhance crop yields and resource efficiency in horticulture. Key areas explored include high-tech greenhouse agriculture, precision agriculture techniques, improved irrigation systems, biofertilizers and biopesticides, breeding of resilient cultivars, and vertical farming. Intensive greenhouse production with supplemental lighting, climate control, hydroponics and automation enables year-round vegetable and fruit yields up to 20 times higher than open-field methods. Precision agriculture leverages data analytics, sensors and AI for optimized inputs and cultivation decisions per sub-field zone. Upgraded irrigation systems like drip lines and computerized scheduling curtail water usage. Organic biofertilizers and biopesticides derived from microbes, plants and minerals boost soil health and impede pests while avoiding chemical residues. Newly bred cultivars feature accelerated growth, improved taste and nutrition, and resistance to biotic and abiotic stresses. Meanwhile, vertical farms multilayer indoor cropping to magnify yields in small footprints. Further integration of these and other cutting-edge horticultural technologies can increase global food production without environmental sacrifice. This necessitates greater public and private sector investments paired with institutional support.

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Section: Reduced Tillage Systemsmentioning

confidence: 99%

Horticultural Innovations Elevating Crop Yields and Agricultural Sustainability for a Flourishing Future

Indurthi,

Sarma,

Vinod

2024

PCBMB

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“…When making estimates in countries with expansive territories, such as China, these methods may prove insufficient to reflect the combined effects of local climate, soil, and management conditions (e.g., fertilization, irrigation, and straw return) on field GHG emissions and SOC sequestration. 19,21,22 To take such finer-scale impacts into account, it is necessary to couple LCA with the process-based model explicated in the Tier 3 method, such as the Denitrification−Decomposition (DNDC) model, 23 the Environmental Policy Integrated Climate (EPIC) model, 24 and the Dynamic Land Ecosystem Model (DLEM). 25 Furthermore, the specific driving factors behind the spatiotemporal variation in the CF of rice production, particularly those related to GHG emissions and SOC sequestration in paddy fields, have not been precisely identified, which hinders the development of effective mitigation measures.…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies, the Tier 1 and Tier 2 methods outlined in the Intergovernmental Panel on Climate Change (IPCC) guidelines were commonly used to estimate CH 4 emissions, N 2 O emissions, and SOC sequestration in paddy ecosystems. When making estimates in countries with expansive territories, such as China, these methods may prove insufficient to reflect the combined effects of local climate, soil, and management conditions (e.g., fertilization, irrigation, and straw return) on field GHG emissions and SOC sequestration. ,, To take such finer-scale impacts into account, it is necessary to couple LCA with the process-based model explicated in the Tier 3 method, such as the Denitrification–Decomposition (DNDC) model, the Environmental Policy Integrated Climate (EPIC) model, and the Dynamic Land Ecosystem Model (DLEM) …”

Section: Introductionmentioning

confidence: 99%

Toward Low-Carbon Rice Production in China: Historical Changes, Driving Factors, and Mitigation Potential

Li,

Lu,

et al. 2024

Environ. Sci. Technol.

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Under the "Double Carbon" target, the development of low-carbon agriculture requires a holistic comprehension of spatially and temporally explicit greenhouse gas (GHG) emissions associated with agricultural products. However, the lack of systematic evaluation at a fine scale presents considerable challenges in guiding localized strategies for mitigating GHG emissions from crop production. Here, we analyzed the countylevel carbon footprint (CF) of China's rice production from 2007 to 2018 by coupling life cycle assessment and the DNDC model. Results revealed a significant annual increase of 74.3 kg CO 2 -eq ha −1 in the average farm-based CF (FCF), while it remained stable for the product-based CF (PCF). The CF exhibited considerable variations among counties, ranging from 2324 to 20,768 kg CO 2 -eq ha −1 for FCF and from 0.36 to 3.81 kg CO 2 -eq kg −1 for PCF in 2018. The spatiotemporal heterogeneities of FCF were predominantly influenced by field CH 4 emissions, followed by diesel consumption and soil organic carbon sequestration. Scenario analysis elucidates that the national total GHG emissions from rice production could be significantly reduced through optimized irrigation (48.5%) and straw-based biogas production (18.0%). Moreover, integrating additional strategies (e.g., advanced crop management, optimized fertilization, and biodiesel application) could amplify the overall emission reduction to 76.7% while concurrently boosting the rice yield by 11.8%. Our county-level research provides valuable insights for the formulation of targeted GHG mitigation policies in rice production, thereby advancing the pursuit of carbon-neutral agricultural practices.

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“…Several studies have also shown that PFM can increase CH 4 emissions which has been attributed to higher soil water contents under the PFM (Cuello et al, 2015;Wang H. et al, 2021;Yu et al, 2021), although occasionally, the opposite trend is found (Nan et al, 2016). As the use of PFM usually results in increased crop yields, it is important, however, to yield-scale greenhouse gas (GHG) emissions (Islam Bhuiyan et al, 2021) For example, the higher GHG emissions under PFM management were shown to be lower than the unmulched control when crop yield was taken into account (Li et al, 2022;Zhang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Biodegradable plastic film mulch increased nitrous oxide emissions in organic leek but decreased emissions in organic cabbages

samphire,

Jones,

Chadwick

2024

Preprint

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Plastic film mulch (PFM) controls weeds and increases yields, making them attractive to vegetable growers; biodegradable PFMs potentially reduce the harms associated with conventional PFMs. PFMs increase soil biological activity, accelerating the decomposition of soil organic matter and potentially increasing emissions of some greenhouse gases (GHGs). Conversely, they are a barrier to rainfall infiltration and gas exchange, reducing harmful nitrate (NO3−) leaching and ammonia (NH3) volatilisation. The effects of PFMs on the processes resulting in GHG emissions are not well explored outside conventionally grown commodity crops in major growing regions. To address this, we conducted a field plot-scale experiment on an organic vegetable farm in SW Wales (UK). We measured nitrous oxide (N2O), methane (CH4), carbon dioxide (CO2) and potential NH3 emission from the soil, growing leeks or cabbages, with or without biodegradable PFM and amended with poultry manure or green-waste compost. Averaged across both crops, yield was 26% higher with PFM; potential NH3 emissions were 18% lower (43% on a yield-scaled basis) in mulched treatments than unmulched; CH4 emissions were not significantly affected. Yield-scaled N2O emissions were 62% higher in mulched leeks than unmulched but 56% lower in mulched cabbages than unmulched; this coincided with higher soil NO3− concentrations in mulched leeks than either unmulched crop or mulched cabbages. Results were not obtained for CO2, so partial global warming potential (GWP) and greenhouse gas intensity (GHGI) were determined mainly by N2O emissions. Thus, biodegradable PFM is potentially useful in reducing harmful gaseous N emissions in organic horticulture.

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Optimum plastic mulching application to reduce greenhouse gas emissions without compromising on crop yield and farmers' income

Cited by 19 publications

References 43 publications

Horticultural Innovations Elevating Crop Yields and Agricultural Sustainability for a Flourishing Future

Horticultural Innovations Elevating Crop Yields and Agricultural Sustainability for a Flourishing Future

Toward Low-Carbon Rice Production in China: Historical Changes, Driving Factors, and Mitigation Potential

Biodegradable plastic film mulch increased nitrous oxide emissions in organic leek but decreased emissions in organic cabbages

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