Optimizing Nitrogen Fertilizer Application for Synergistic Enhancement of Economic and Ecological Benefits in Rice–Crab Co-Culture Systems DOI Creative Commons
Yang Xu, Hao Li, Hongyuan Wang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(10), P. 2219 - 2219

Published: Sept. 26, 2024

The rice–crab co-culture (RC) system is a multidimensional integrated farming model with significant potential for balancing ecological and economic benefits in paddy fields. However, improper nitrogen (N) fertilizer application exacerbates greenhouse gas (GHG) emissions, degrades water quality, disrupts the balance of RC ecosystem. Therefore, optimizing improving N management strategies crucial to maximize its benefits. This study conducted two-year field experiment assess impact on productivity, sustainability, systems. Comparisons were made compare rice crab productions, GHG net ecosystem benefit (NEEB) between monoculture (RM) systems under different rates (0, 150, 210, 270 kg ha−1) aim identifying optimal rate system. results showed that 210 ha−1 improved agronomic traits use efficiency, leading 0.4% increase yield (7603.1 compared maximum RM at ha−1. At this rate, surface quality was crabs, resulting highest yields (370.1 average weights (81.1 g). lower reduced intensity (GHGI) by 13.7% NEEB reached 8597.5 CNY ha−1, which 1265.7% higher than In summary, conserves resources, increases yields, reduces thereby synergistically enhancing both Optimizing has greater other innovative models, efficiency should be further investigated.

Language: Английский

Cultivating a sustainable future in the artificial intelligence era: A comprehensive assessment of greenhouse gas emissions and removals in agriculture DOI
Morteza SaberiKamarposhti,

Kok-Why Ng,

Mehdi Yadollahi

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 250, P. 118528 - 118528

Published: Feb. 23, 2024

Language: Английский

Citations

27
Comprehensive impacts of different integrated rice-animal co-culture systems on rice yield, nitrogen fertilizer partial factor productivity and nitrogen losses: A global meta-analysis DOI

Beibei Chen,

Lijin Guo,

Jichao Tang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169994 - 169994

Published: Jan. 19, 2024

Language: Английский

Citations

16
Water-saving irrigation mitigates methane emissions from paddy fields: The role of iron DOI Creative Commons
Yu Han,

Zhijuan Qi,

Peng Chen

et al.

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 298, P. 108839 - 108839

Published: April 30, 2024

Iron (Fe) and methane (CH4) emissions play crucial roles in the carbon cycling of paddy field ecosystems. However, little is known about effect mechanism Fe transformation on CH4 emission from fields, especially with different water management methods. In this study, dynamic changes forms soil organic content were observed fields under flooded irrigation (FI) water-saving (WSI) (including intermittent (II) controlled (CI)). addition, structural equation model was used to clarify response relationship between ions fields. The results indicate that cumulative WSI reduced by 29.03–61.29 %. reasons are as follows (i) increased oxidation ability increasing ferric iron (Fe3+) fields; (ii) could reduce substrate utilization methanogens transforming oxide increase binding capacity dissolved carbon, which production. compared II, CI had higher Fe3+ content, Fe-bound lower acetate so it production capacity. summary, promotes direct indirectly reduces facilitating combination oxides substrates. These findings deepen our understanding mechanisms provide new insights for research sequestration reduction

Language: Английский

Citations

7
Impacts of rice–crayfish co-culture on ecosystem service trade-offs/synergies in agricultural watersheds: A case exploration in Sihu Lake Basin, China DOI Creative Commons
Huanyu Zhang,

Ling Wang,

Shuqi Jiang

et al.

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 310, P. 109389 - 109389

Published: Feb. 21, 2025

Language: Английский

Citations

1
Effects of Long-Term Rice-Crayfish Coculture Systems on Soil Nutrients, Carbon Pools, and Rice Yields in Northern Zhejiang Province, China DOI Open Access
Baojun Wang, Hongmei Zhang,

Chen Gui

et al.

Published: May 3, 2024

This research was to examine the impacts of long-term rice-crayfish coculture systems(RS) on soil nutrients, carbon pools, and rice yields in paddy fields , aiming establish a scientific basis for sustainable development RS northern region Zhejiang. The results showed that change from monoculture (CK) resulted 24.99% increase 5-year average ammonium nitrogen(AN), while nitrate nitrogen(NN), available potassium(AK), phosphorus content(AP) decreased by 28.02%, 16.05%, 28.76% respectively. Moreover, total organic carbon(TOC), easily oxidizable carbon(EOC), dissolved carbon(DOC), microbial biomass carbon(MBC) 2.45%, 8.82%, 35.31%, 65.84% Correlation analysis there significant positive correlation between NN, EOC MBC RS. In terms yield, yield has 8.4% compared CK.The planting early-maturing varieties reduced 13.16%, late-maturing 6.00%. conclusion, enhancing water nutrient management cultivating late maturing are essential strategies achieving

Language: Английский

Citations

3
Nitrogen fertilizers and the future of sustainable agriculture: a deep dive into production, pollution, and mitigation measures DOI
Muhammad Aammar Tufail, Muhaimen Ayyub,

Leeza Tariq

et al.

Soil Science & Plant Nutrition, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 21

Published: June 15, 2024

'All we are is a lot of talking nitrogen' stated by an American playwright, Arthur Miller, precisely expressing the crucial nature nitrogen for ecosystem. On one hand, deficiency limits food production in developing areas, while excessive compromises soil fertility, human health, and agricultural environmental sustainability industrialized world. other more than half applied soils usually lost to environment terms nitrous oxide (N2O) emissions, ammonia (NH3) volatilization, nitrate (NO3) leaching. Therefore, it required increase use efficiency plants improve crop production, save raw materials used produce fertilizers, mitigate adverse effects on health environment. This multidisciplinary review highlights natural synthetic sources nitrogen, emission different regions, applications, toxicity economic aspects management approaches such as biological fixation, 4 R strategy, enhanced nitrification inhibitors, digital mapping context sustainable development goals (SDGs).

Language: Английский

Citations

3
Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China DOI Creative Commons

Chaojie Lan,

Jingnan Zou,

Hailong Xu

et al.

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 302, P. 108956 - 108956

Published: July 26, 2024

Ratoon rice utilizes the axillary buds sprouting from remaining stubble of main crop after harvest to form panicles, enabling a second harvest. However, mechanized harvesting often resulted in damage stubbles rolling zone, potentially leading reduced yield. Enhancing number tillers zone through optimized agronomic measures was crucial for achieving higher research on water and fertilizer management corresponding low ratoon under limited. A two-factor experiment conducted assess impacts regimes (flooded; alternate wetting drying) nitrogen (0 kg N ha−1; Tiller promotion 90 Split application: 60 ha−1 + Booting stage 30 ha−1) yield formation, greenhouse gas emissions, carbon footprint rice. The results indicated significant effects Compared single application tiller-promoting coupled with continuous flooding (N-FL), drying (SN-AWD) significantly increased average annual by 25.4 %. SN-AWD ability basal first nodes compared N-FL. soil quality index ecosystem multifunctionality an 32.37 % 10.16 times, respectively, This increase enhancements root length surface area, consequently improving pre-anthesis post-anthesis dry matter accumulation ultimately enhancing Although N2O emissions N-FL, CH4 cumulative decreased 37.86 over two years, 23.02 reduction total 38.62 per unit grain. attained maximum net economic benefit (NEEB), increasing 35.42 Overall, comprehensive analysis suggested that sustainable approach beneficial balancing season yields, environmental footprint, benefits.

Language: Английский

Citations

3
Spatial Analysis on Resource Utilization, Environmental Consequences and Sustainability of Rice–Crayfish Rotation System in Jianghan Plain, China DOI Creative Commons

Hang Shi,

Guang Han,

Naijuan Hu

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 1071 - 1071

Published: May 18, 2024

The rice–crayfish rotation system (RCR), originating in the Jianghan Plain, is developing rapidly various regions of China and has been characterized by unbalanced regional development, which also led to widespread concerns discussion on its environmental impacts sustainability. This study selects representative RCR production areas including Jianli, Qianjiang, Shishou, Shayang, Gong’an Honghu, analyze resource inputs, utilization efficiency, sustainability employing emergy analysis method. Our Gong’an, Shishou Shayang reports total inputs ranging from 6.46 × 1016 8.25 1016, with renewable rates between 78.38% 84.34%. leads unit value (5.58 10−1) yield ratio (5.30). evaluation finds that loading 0.19 0.28 index for sustainable development varies 1.27 3.00. indicates southern have higher southeastern showing lower impact We underscore non-renewable resources outcomes sustainability, suggesting tailored strategies system’s optimization growth.

Language: Английский

Citations

2
Evaluation of Rice–Crayfish Field Fragmentation Based on Landscape Indices: A Case Study of Qianjiang City, China DOI Creative Commons
Lei Shi, He Xu, Bo Hu

et al.

Land, Journal Year: 2024, Volume and Issue: 13(7), P. 1001 - 1001

Published: July 6, 2024

Since the 21st century, rice–crayfish fields have been widely distributed in Yangtze River Basin China. However, spontaneous construction of these by farmers has given rise to issue field fragmentation (RCFF) certain areas. This study introduced a novel method for evaluating RCFF using township-level administrative regions as evaluation units. Three key elements, including five landscape indices, were employed: area and edge metrics (rice–crayfish ratio), shape (perimeter–area ratio distribution), aggregation patch density, percentage like adjacencies, contagion index). The was quantified its spatial distribution pattern analyzed through entropy GIS analysis. Empirical studies conducted Qianjiang city yielded insightful results: (1) contribution elements ranked descending order follows: > metrics. (2) Yunlianghu farm lowest at 0.06, while Yangshi subdistrict 2 highest 0.94. exhibited distinct trend, showing gradual decrease from northeast southwest Qianjiang, low-RCFF southwest. system enables local government decisionmakers comprehend current status management construction. It facilitates scientific planning layouts provides guidance their expansion strategies. can be promoted counties (cities) where are primarily Basin, promoting transition traditional agriculture environmentally friendly

Language: Английский

Citations

2
Who affects carbon emissions? Drivers and decoupling effects of agricultural carbon emissions—evidence from Sichuan, China DOI Creative Commons
Yan Meng, Yangyang Shen, Wei Wang

et al.

Frontiers in Sustainable Food Systems, Journal Year: 2024, Volume and Issue: 8

Published: Aug. 29, 2024

Mitigating agricultural carbon emissions is pivotal for attaining the objectives of peak and neutrality. Utilizing a time-varying parametric Cobb-Douglas (C-D) production function, this study employs an enhanced Logarithmic Mean Divisia Index (LMDI) decomposition approach, Tapio decoupling model, Monte Carlo simulations to investigate determinants dynamics within Sichuan Province from 2010 2020. The findings reveal that: (1) Factors such as emission intensity, structure, labor inputs, capital stock played significant role in suppressing emissions, collectively contributing reduction 484.12 million tonnes. (2) unstable economic development Province. Capital stock, alongside intensity significantly contributed decoupling. To harmonize growth with reduction, emphasis should be placed on manure management resource utilization livestock poultry farming. Furthermore, leveraging technological advancements enhance efficiency crucial reducing emissions. Simultaneously, strategic fixed asset growth, focused energy conservation, can catalyze synergistic effects spillovers.

Language: Английский

Citations

2