
Journal of soil science and plant nutrition, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Journal of soil science and plant nutrition, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Scientific Reports, Год журнала: 2025, Номер 15(1)
Опубликована: Март 19, 2025
Abstract Fulvic acid (FA) has many physiological activities, but the specific metabolic responses and changes in mineral element contents of spinach by FA response to nitrate stress are unknown. Herein, we used liquid chromatography-mass spectrometry (LC–MS) wet digestion using H 2 SO 4 -H O analyze content (150 mM NO 3 − ) after (0.15%) foliar spray application. After days treatment, was sprayed thrice (once every 7 days), sampled last spraying, metabolites were measured. treatment significantly increased organic (tartaric acid, malic citric ascorbic acid) amino (threonine, asparagine, valine, tyrosine, alanine, glutamate, serine, histidine, arginine, glutamine) under stress. application also improved (P, Na, Fe, Zn) This study provides comprehensive insights into metabolite accumulation improvement nutritional quality through Further research should focus on elucidating additional underlying molecular mechanisms these for better utilization this natural compound agriculture.
Язык: Английский
Процитировано
1Journal of Environmental Management, Год журнала: 2024, Номер 365, С. 121650 - 121650
Опубликована: Июль 4, 2024
Язык: Английский
Процитировано
5Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115571 - 115571
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0Plants, Год журнала: 2025, Номер 14(4), С. 627 - 627
Опубликована: Фев. 19, 2025
This study addresses the low yield and fertilizer utilization efficiency of potatoes in arid region Xinjiang, Northwest China. The effect a novel, fulvic acid-based specialized for drip application on potato growth, development, yield, is investigated. aim to identify suitable formula cultivation Xinjiang promote its demonstration application, providing theoretical basis improving achieving stable, high yields region. experiment was conducted with variety 'Xisen 6' using field trial design, which included five treatments: no (CK), conventional (CF: N-P-K = 258-245-338 kg·ha-1), formulated 1 (F1: 120 g·L-1 acid, 110-100-120 g·L-1), 2 (F2: 60 130-120-150 3 (F3: 30 170-150-130 g·L-1). Agronomic traits, gas exchange parameters leaves during tuber expansion stage, components at harvest were measured, along use each treatment. Results show that F1, F2, F3 improved plant height, stem diameter, aboveground dry weight, SPAD value, stomatal conductance (Gs), yield. Among these, F2 significantly enhanced accumulation relative chlorophyll content (SPAD value) increased photosynthesis, further efficiency, resulting increase 121.29% 34.6% compared CK CF, respectively. Therefore, identified as optimal fertilization strategy Xinjiang. Its has been extended trials. Field results 14.79% CK, proving effectiveness replacing fertilizers enhancing production.
Язык: Английский
Процитировано
0Agronomy, Год журнала: 2025, Номер 15(5), С. 1041 - 1041
Опубликована: Апрель 26, 2025
A hyperspectral maize nitrogen content prediction model is proposed, integrating a dynamic spectral–spatiotemporal attention mechanism with graph neural network, the aim of enhancing accuracy and stability estimation. Across multiple experiments, proposed method achieved outstanding performance on test set, R2=0.93, RMSE 0.35, MAE 0.48, significantly outperforming comparative models including SVM, RF, ResNet, ViT. In experiments conducted across different growth stages, best was observed during grain-filling stage, where R2 reached 0.96. terms accuracy, recall, precision, exhibited an average improvement exceeding 15%, demonstrating strong adaptability to temporal variation generalization spatial conditions. These results provide robust technical support for large-scale, nondestructive monitoring in agricultural applications.
Язык: Английский
Процитировано
0Field Crops Research, Год журнала: 2025, Номер 329, С. 109958 - 109958
Опубликована: Май 5, 2025
Язык: Английский
Процитировано
0Agronomy, Год журнала: 2025, Номер 15(5), С. 1153 - 1153
Опубликована: Май 9, 2025
Drought deficit inhibits oat growth and yield. Fulvic acid (FA) can enhance plant stress tolerance, but its effects on regulating the ascorbate–glutathione cycle, chlorophyll synthesis, carbon–assimilation ability remain unclear. Therefore, this study aimed to elucidate physiological mechanisms of FA regulation drought tolerance in oats relationship with yield using drought-resistant variety Yanke 2 drought-sensitive Bayou 9. The yield, antioxidant system, capacity under were investigated by systematically assessing changes morphogenesis, intermediates, enzyme activities, carbohydrate metabolism. results showed that stress, treatment significantly promoted (leaf area, dry matter) elevated glutathione peroxidase, ascorbate reductase, dehydroascorbate reductase reduced ascorbic acid, content. In addition, increased chlorophyll, as well magnesium protoporphyrin IX, protochlorophyllin ester content, enhanced 1,5-bisphosphate ribulose carboxylase, carboxylase enzyme, 1,7-bisphosphate sestamibiose heptulose esterase, 1,6-bisphosphate fructose aldolase, sucrose synthase, phosphate invertase, neutral invertase sucrose, glucose, Overall, fulvic alleviates drought-induced damage enhancing promoting biosynthesis, improving carbon assimilation (Yanke 2) was more effective application compared (Bayou 9). This research provides valuable insight into potential a biostimulant abiotic stress.
Язык: Английский
Процитировано
0New Zealand Journal of Botany, Год журнала: 2025, Номер unknown, С. 1 - 12
Опубликована: Май 18, 2025
Язык: Английский
Процитировано
0Agronomy, Год журнала: 2025, Номер 15(6), С. 1327 - 1327
Опубликована: Май 29, 2025
Cotton root systems sustain photosynthesis by nutrient uptake and coordinate with above-ground growth to influence yield. This study explored the effects of fulvic acid (FA) phosphorus (P) fertilizers on relationships between cotton photosynthetic capacity (CAP) carbohydrate metabolism. A field experiment was conducted including five treatments: no P fertilizer (CK), 105 kg P2O5 ha−1 (P1), 150 (P2), + FA (FP1), (FP2). Results found that FP2 showed most significant advantage, ensuring a suitable leaf area index (LAI) fractional interception photosynthetically active radiation (IPAR) consequently maintaining high CAP. Compared FP2, FP1 resulted in an increase boll loading system (BLR) 8.1% (BCR) 9.3%. From peak flowering stage setting stage, sucrose starch contents were 6.2–19.2% 26.5–27.9% lower than those respectively. Conversely, fructose glucose 6.4–10.8% 7.2–8.8% higher FP2. The reproductive organ biomass increased 11.1% 14.7% relative Moreover, achieved highest yield, 8.5% 11.0% compared P2 Taken together, our suggests application (105 FA) could be proper fertilization method production saline-alkali arid regions.
Язык: Английский
Процитировано
0Frontiers in Plant Science, Год журнала: 2024, Номер 15
Опубликована: Сен. 19, 2024
Drought stress inhibits oat growth and yield. The application of fulvic acid (FA) can improve the drought resistance oats, but corresponding molecular mechanism FA-mediated remains unclear. Here, we studied effects FA on tolerance leaves through physiological, transcriptomic, metabolomics analyses, identified FA-induced genes metabolites related to tolerance. Physiological analysis showed that under stress, increased relative water chlorophyll contents leaves, enhanced activity antioxidant enzymes (SOD, POD, PAL, CAT 4CL), inhibited accumulation malondialdehyde (MDA), hydrogen peroxide (H 2 O ) dehydroascorbic (DHA), reduced degree oxidative damage in improved promoted plants. Transcriptome metabolite analyses revealed 652 differentially expressed (DEGs) 571 (DEMs) FA-treated stress. These DEGs DEMs are involved a variety biological processes, such as phenylspropanoid biosynthesis glutathione metabolism pathways. Additionally, may be regulating role phenylpropanoid In conclusion, our results suggest promotes by attenuating membrane lipid peroxidation system, biosynthesis, pathways leaves. This study provides new insights into complex mechanisms which improves crops.
Язык: Английский
Процитировано
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