Harnessing Smartphone RGB Imagery and LiDAR Point Cloud for Enhanced Leaf Nitrogen and Shoot Biomass Assessment - Chinese Spinach as a Case Study DOI Open Access
Aravind Harikumar, Itamar Shenhar,

Miguel R. Pebes-Trujillo

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract Accurate estimation of leaf nitrogen concentration and shoot dry-weight biomass in leafy vegetables is crucial for crop yield management, stress assessment, nutrient optimization precision agriculture. However, obtaining this information often requires access to reliable plant physiological biophysical data, which typically involves sophisticated equipment, such as high-resolution in-situ sensors cameras. In contrast, smartphone-based sensing provides a cost-effective, manual alternative gathering accurate data. study, we propose an innovative approach estimating by integrating smartphone RGB imagery with Light Detection Ranging (LiDAR) using Amaranthus dubius (Chinese spinach) case study. The influence varying dosages on individual spectral structural features derived from LiDAR data was modeled. Additionally, the indices were combined model both biomass. performance parameter modeling evaluated support vector regression, random forest lasso regression. Results demonstrate that use can accurately estimate total reduced concentration, nitrate biomass, average relative root mean square errors low 0.06, 0.16, 0.05, respectively. Furthermore, optimal dosage maximizing Chinese spinach also estimated This study lays groundwork supporting accessible agriculture practices.

Language: Английский

The effect of substituting inorganic fertilizer with manure on soil N₂O and CH₄ emissions and crop yields: A global meta-analysis DOI Creative Commons
Xiaoyi Meng, Shurong Liu, Junliang Zou

et al.

Field Crops Research, Journal Year: 2025, Volume and Issue: 326, P. 109831 - 109831

Published: March 7, 2025

Language: Английский

Citations

3
Partial replacement of inorganic fertilizer with organic inputs for enhanced nitrogen use efficiency, grain yield, and decreased nitrogen losses under rice-based systems of mid-latitudes DOI Creative Commons
Muhammad Shahbaz Farooq,

Abid Majeed,

Abdelhalim I. Ghazy

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Oct. 1, 2024

Language: Английский

Citations

4
Vegetable Response to Added Nitrogen and Phosphorus Using Machine Learning Decryption and the N/P Ratio DOI Creative Commons
Léon‐Étienne Parent

Horticulturae, Journal Year: 2024, Volume and Issue: 10(4), P. 356 - 356

Published: April 3, 2024

The current N and P fertilization practices for vegetable crops grown in organic soils are inaccurate may potentially damage the environment. New models needed. Machine learning (ML) methods can combine numerous features to predict crop response fertilization. Our objective was evaluate machine predictions marketable yields, offtakes, N/P ratio of crops. We assembled 157 multi-environmental fertilizer trials on lettuce (Lactuca sativa), celery (Apium graveolens), onion (Allium cepa), potato (Solanum tuberosum) documented 22 easy-to-collect soil, managerial, meteorological features. random forest returned moderate substantial strength (R2 = 0.73–0.80). Soil managerial were most important. There no added null independent universality tests. offtakes impacted by P-related features, indicating N–P interactions. mass ratios harvested products generally lower than 10, suggesting excess that would trigger plant acquisition possibly alter soil C cycles through microbial processes. Crop prediction ML ex post diagnosis proved be useful tools guide management decisions soils.

Language: Английский

Citations

3
Do higher fertilization doses guarantee higher vegetable yield? DOI
L. Lepse, S. Zeipiņa,

M. Gailīte

et al.

Acta Horticulturae, Journal Year: 2025, Volume and Issue: 1416, P. 157 - 164

Published: Jan. 1, 2025

Language: Английский

Citations

0
The duration of intensive vegetable cultivation regulates the fates of accumulated nitrate under reductive soil disinfestation DOI Creative Commons
Huimin Zhang, Jing Wang, Nyumah Fallah

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Purpose Reductive soil disinfestation (RSD) can remove over-accumulated nitrate (NO3−-N) from topsoil in intensive vegetable fields via elevating NO3−-N consumption processes. The duration of cultivation may affect the relative importance these consuming processes during RSD treatment by altering properties. However, it remains elusive how affects fates treatment. Methods Here, a column experiment labeled with K15NO3 was conducted to investigate effects different ages (5, 10, 20 and 30 years) vegetables on under Results results showed that more than 91.8% added 15NO3−-N removed treatment, regardless years. There trade-off between denitrification leaching into subsoil, both which together accounted for 85.5–97.1% 15NO3−-N, proportion gaseous 15N loss (Pdenitrification) initially increased 5 10 years cultivation, then decreased further ages, but trend reversed subsoil (Pleaching). structural equation model revealed initial carbon/nitrogen ratio had an indirect positive effect Pdenitrification driving nirK abundance Conclusion Overall, our highlight critical role using removing accumulated its Pleaching as cultivation.

Language: Английский

Citations

0
Optimizing nitrogen delivery: Controlled release of fertilizer using mesoporous silica for sustainable agriculture DOI
Choiril Azmiyawati,

Ari Setyorini,

Hasan Muhtar

et al.

Particulate Science And Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 11

Published: March 14, 2025

Language: Английский

Citations

0
Unraveling the Importance of Nitrogen Nutrition for the Thermotolerance of Irrigated Crops: A Review DOI Creative Commons
Francisco Sales Ferreira dos Santos Júnior, Aline Dell Passo Reis, Renato de Mello Prado

et al.

Horticulturae, Journal Year: 2025, Volume and Issue: 11(4), P. 350 - 350

Published: March 25, 2025

Climate change has intensified the increase in irrigated crops to solve frequent droughts, but part of stress continues due heat waves, and for these systems, there is a lack in-depth discussion about their damage strategies minimize this damage. The caused by high temperatures may be exacerbated with nutritional disorder nitrogen, optimized management nutrient can help mitigate effects stress. This merits further debate, as it would sustainable strategy without risk environment at same time could induce greater plant tolerance review will address relevance rising isolated on crop nutrition productivity role nitrogen use mitigating propose future perspectives research that researchers improve thermotolerance. Nitrogen plays an essential metabolism, inducing production proteins from photosynthesis, boosting primary secondary metabolism and, consequently, defense systems plant. Studies indicate adequate supplementation resilience temperatures, improving water efficiency promoting synthesis shock proteins. In addition, new fertilizer management, such nitrification inhibitors biofertilizers, have demonstrated reducing environmental losses, they impact mitigation. Although negative waves plants, are still gaps knowledge underlying biochemical physiological mechanisms involved whether doses N used really optimal maximizing plant’s system against outlook become important not only guarantee yields also wave losses strengthening deal context climate change, better understanding benefits manage towards more agriculture.

Language: Английский

Citations

0
Upcycling anaerobic digestion streams into feed-grade protein for increased environmental sustainability DOI Creative Commons
Hadis Marami,

Sahar Khademi,

Shahin Rafiee

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 216, P. 115638 - 115638

Published: March 26, 2025

Language: Английский

Citations

0
Influence of Cropping Regimes on the Availability and Existing Forms of Phosphorus in the Albic Luvisols in Northeast China DOI Creative Commons

Yidan Geng,

Honghao Yu,

Yuanhong Sun

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(4), P. 827 - 827

Published: March 27, 2025

Adopting an optimal cropping regime is crucial for sustainable soil use. However, how different regimes impact phosphorus (P) availability and the underlying mechanism remain unclear. Here, a 10-year field experiment was performed to examine influence of regimes, including maize–soybean rotation (MSR), continuous maize (CMC), farmland fallow (FALL), under unfertilized fertilized conditions in Northeast China. The P forms were analyzed using chemical fractionation solution phosphorus-31 nuclear magnetic resonance. Compared FALL, total contents significantly lower MSR CMC systems. Moreover, higher than those CMC. Correlation analysis showed that there significant positive correlations between contents. Redundancy revealed organic carbon (SOC) as most factor influencing P. Structural equation modeling demonstrated direct impacts SOC, nitrogen, phosphorus, Olsen on phosphatase activity, which exhibited availability. In summary, effective promoting accumulation this region.

Language: Английский

Citations

0
The duration of intensive vegetable cultivation regulates the fates of accumulated nitrate under reductive soil disinfestation DOI
Huimin Zhang, Jing Wang, Nyumah Fallah

et al.

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: April 5, 2025

Language: Английский

Citations

0