Estimation of Soil Nitrogen Content Influenced by Different Nitrogen-Based Management Practices within Rice-Based Cropping Using Diffuse Reflectance Spectroscopy and Machine Learning DOI
Arijit Ghosh, Tarik Mitran,

Pabitra Kumar Mani

et al.

Communications in Soil Science and Plant Analysis, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 23

Published: Nov. 27, 2024

Reflectance spectroscopy has been widely utilized by researchers to characterize and predict soil nitrogen (N). This study explores the potential of reflectance combined with machine learning estimate N levels under different N-based management practices in rice-based cropping systems. A five-year field experiment (2015–2020) was conducted at Kalyani D Block Farm, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India, testing rice-rice, rice-wheat, rice-potato systems treatments: control (N₀), 100% Neem Coated Urea (NCU), 75% NCU 25% organics, Polymer Sulfur (PSCU), PSCU organics. Soil samples from 0 15 cm depth were collected post-harvest rabi crops (wheat potato) summer rice for analysis, revealing highest available (AN) (189.6 kg ha− 1) PSCU-treated plots, maximum AN wheat (290.6 potato (431.4 found + organic plots. Rice yield reached a high 5.58 t 1 treatment, while produced 3.87 16.07 vermicompost (VC), respectively. Spectral measurements controlled lab environment using ASD Field Spec 4 spectroradiometer, showing significant variability spectral behavior carbon (SOC) levels. Pre-processing techniques, including first-order derivation (FOD), log (1/R) transformation, continuum removal (CR), applied enhance data quality. Machine models, Support Vector Regression (SVMR) Partial Least Squares (PLSR) used SOC, total (TN) (350–2500 nm range). Results showed that SVMR consistently outperformed PLSR all properties, continuum-removed spectra achieving R2 values 0.98, 0.97, 0.92, RMSEs 0.02%, 37.1, 948.8 TN, highlights value integrating rapid, accurate estimation, enabling optimized fertilizer applications crop yields reduce environmental impact.

Language: Английский

Nitrogen losses from soil as affected by water and fertilizer management under drip irrigation: Development, hotspots and future perspectives DOI Creative Commons

Wei Qi,

Wei Qi,

Junzeng Xu

et al.

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 296, P. 108791 - 108791

Published: March 27, 2024

While soil nitrogen (N) losses under drip irrigation water and fertilizer management have become a key issue in global environmental N pollution, no current systematic review of this exists the literature. Drawn from Web Science Core Collection database, 290 related articles were identified as research subjects (1991–2022). To reveal basic characteristics, power, hotspots future perspectives field, an in-depth bibliometrics analysis graphical knowledge display undertaken by using CiteSpace software. By analyzing evolution process keywords, greenhouse gases, use efficiency crop yield been field recent years. Irrigation systems, moisture, fertigation always core topics. The focus on pathways has gradually shifted nitrate (NO3-) leaching alone to comprehensive consideration multiple including NO3- leaching, emissions N2O, NH3 NO. corresponding strategies concentrating application amounts diversified methods involving combinations amounts, types. Moreover, development widespread new technologies exogenous additives further enriched direction management. Future still needs explore how balance high yields minimize impacts, which will provide effective for controlling agricultural non-point source pollution mitigating warming.

Language: Английский

Citations

26
Legume-rice rotations increase rice yields and carbon sequestration potential globally DOI Creative Commons
Wei Yao, Yadong Yang, Damien Beillouin

et al.

One Earth, Journal Year: 2025, Volume and Issue: unknown, P. 101170 - 101170

Published: Jan. 1, 2025

Language: Английский

Citations

3
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

15
Enhancing rice nitrogen use efficiency via plant-microbe-soil interactions: Insights from 15N tracing DOI

Shending Chen,

Chang Zhao,

Wenyan Yang

et al.

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 207, P. 105931 - 105931

Published: Feb. 7, 2025

Language: Английский

Citations

1
Long-term effects of conventional cultivation on soil cation exchange capacity and base saturation in an arid desert region DOI

Dengke Ma,

Zhibin He,

Wenzhi Zhao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 175075 - 175075

Published: July 26, 2024

Language: Английский

Citations

6
Nitrogen utilization efficiency assessment during bioremediation of petroleum-contaminated loess soils: insights from metagenomic analysis DOI

Yawen Ou,

Manli Wu,

Ying Yu

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 478, P. 135506 - 135506

Published: Aug. 13, 2024

Language: Английский

Citations

5
Mechanism of microbial action of the inoculated nitrogen-fixing bacterium for growth promotion and yield enhancement in rice (Oryza sativa L.) DOI Creative Commons
Peng Li,

Yunhe Tian,

Kun Yang

et al.

Advanced Biotechnology, Journal Year: 2024, Volume and Issue: 2(4)

Published: Sept. 19, 2024

Language: Английский

Citations

5
Long-Term Straw Incorporation under Controlled Irrigation Improves Soil Quality of Paddy Field and Rice Yield in Northeast China DOI Creative Commons
Peng Zhang, Peng Chen, Tangzhe Nie

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(10), P. 1357 - 1357

Published: May 14, 2024

Soil quality is an indicator of the ability to ensure ecological security and sustainable soil usage. The effects long-term straw incorporation different irrigation regimes on yield paddy fields in cold regions remain unclear. This study established four treatments: controlled + continuous for 3 years (C3), 7 (C7), flooded (F3), (F7). Analysis was conducted impact various physicochemical characteristics soil. index (SQI) rice computed using separate datasets each treatment. nitrate nitrogen, available phosphorus, organic carbon, matter contents C7 were 93.51%, 5.80%, 8.90%, 8.26% higher compared C3, respectively. In addition, treatment 5.18%, 4.89%, 10.32% than those F3, F7, validity minimum data set (MDS) verified by correlation, Ef ER, which indicated that MDS all treatments able provide a valid evaluation quality. based SQI 11.05%, 11.97%, 27.71% Overall, combined with increases regions. provides thorough assessment concerning preserve food sustainability agricultural output. Additionally, it offers basis diagnosis Northeast China.

Language: Английский

Citations

4
Optimizing the Total Spikelets Increased Grain Yield in Rice DOI Creative Commons
Liu Kun, Kaixi Zhang, Yu Zhang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(1), P. 152 - 152

Published: Jan. 9, 2024

Maximizing rice yield potential has always been the focus of high-yield cultivation research. For and breeding, more research into link between components is essential. In this experiment, 38 varieties with different types 185 as materials were chosen. The relationships studied. regulation effects total nitrogen application rate (TNAR) on observed. results showed that (1) grain was 189.3−195.6%, 76.1−77.7%, 27.0−28.7% higher than super-low-yield, low-yield, medium-yield varieties, respectively. Compared other types, type have a number spikelets. (2) spikelet per panicle spikelets significantly positively linked yield, but negatively correlated filled grains weight. (3) With an increase in TNAR (0−340 kg ha−1), panicles, panicle, increased gradually, weight decreased gradually. TNAR, obvious decrease highest under at 250 ha−1. main factor contributing to its high substantial above increasing played material role improving yield.

Language: Английский

Citations

4
Improvement in Nitrogen-Use Efficiency Increases Salt Stress Tolerance in Rice Seedlings and Grain Yield in Salinized Soil DOI Creative Commons

Ji Ping,

Xu Chen,

Fenglou Ling

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(4), P. 556 - 556

Published: Feb. 11, 2025

Salt stress has become a major limiting factor of rice (Oryza sativa L.) yield worldwide. Appropriate nitrogen application contributes to improvement in the salt tolerance rice. Here, we show that nitrogen-use efficiency increases Rice varieties with different efficiencies were subjected stress; they stimulated 50, 100, and 150 mmol/L NaCl solution at seedling stage salinities 0.2, 0.4%, 0.6% reproductive growth stage. Compared nitrogen-inefficient varieties, nitrogen-efficient showed significant expression levels nitrogen-use-efficiency-related genes (TOND1 OsNPF6.1), content (5.1-12.1%), enzyme activities (11.7-36.4%) when under conditions. The better adaptation stress, as shown by decrease leaf-withering rate (4.7-10.3%), higher chlorophyll (3.8-9.7%) water contents (1.1-9.2%), root status (7.3-9.1%) found seedlings Analysis physiological indexes revealed accumulated osmotic adjustment substances (9.7-79.9%), lower ROS (23.1-190.8%) Na+ (15.9-97.5%) contents, stress-related Furthermore, salt-induced 1000-grain weight (2.1-6.2%), harvest index (1.4-4.9%), grain (2.8-4.1%) salinized soil. Conversely, metabolism statuses severe Our results suggest could improve transport efficiency; accordingly, their use can gene network, alleviating damage improving

Language: Английский

Citations

0