Frontiers in Environmental Science
·
2023
·
IF 4.6
Häfner Franziska,Monzon Diaz Oscar Rodrigo,Tietjen Sarah,Schröder Corinna,Krause Ariane
Recycling nutrients is essential for closing nutrient loops within a circular economy. Using locally available resources such as human excreta to produce bio-based recycling fertilizers can substitute mineral fertilizers and thereby promote environmentally friendly food production. To better understand the fertilizer potential and nitrogen value of human excreta, three novel and safe recycling products were evaluated in a field experiment. Two nitrified urine fertilizers (NUFs) and one fecal compost were applied alone or in combination, and compared against the commercial organic fertilizer vinasse. In addition, the uptake of pharmaceuticals was assessed for treatments with compost application. White cabbage (Brassica oleracea var. capitata f. alba) was cultivated in plots in three different soil types (sand, loam or silt) treated with the fertilizers according to plant needs and mineral soil nitrogen content. The two NUFs resulted in marketable yields similar to those of vinasse in all soil types. Combining fecal compost with a NUF led to increased marketable yield compared to compost alone. The highest yield was recorded from the sandy soil, where vinasse and NUF treatments led to comparable yields, as expected in organic productions systems (up to 72 t ha−1). The cabbage yield and total aboveground fresh biomass followed the following trend in all soils: NUFs ∼ vinasse ≥ compost + NUF ≥ compost. Nitrogen uptake in the cabbage heads and total biomass was significantly higher in sand (69.5–144 kg ha−1) than loam (71.4–95.8 kg ha−1). All compost treatments alleviated the effect of soil type and resulted in comparable nitrogen uptake and yield in all soil types. Plant uptake of pharmaceuticals (Carbamazepin) was higher in sand than in loam, and concentration in the edible part was lower than in the outer leaves. In conclusion, NUF alone appears to be a promising successful fertilizer substitute in horticultural food production. The combined application of NUF and compost led to slightly lower crop yields, but may increase soil carbon content in the long term, promoting climate-friendly food production.
研究领域:
农业科学
·
环境科学
✓ 已验证
DOI
高影响因子
SOIL BIOLOGY & BIOCHEMISTRY
·
2025
·
IF 10.3
Zixuan Zhao,Bin Luo,Tao Cao,Tongtong Bai,Yifan Sun,Hengrui Liu,Li Zhang,Jun Xie,Jun Wang,Huakang Li,Zichen Duan,Zixuan Gao,Xiaojuan Wang,Jie Gu,Xun Qian,James M. Tiedje
The transmission and transformation patterns of antibiotic resistance genes (ARGs) in the soil-onion continuum under the application of organic fertilizers in actual agricultural cultivation are still unknown. This study systematically analyzed the occurrence characteristics of ARGs in soil and onion (roots and bulbs) under the application of organic fertilizer from livestock manure, and revealed the response mechanism of phenolic metabolites in roots. The results showed that fertilization promoted the enrichment of ARGs in the soil and onions. The abundance of ARGs in the bulbs of the pig manure and sheep manure treatment groups was 4 times and 2 times as high as that in the unfertilized group, respectively. In comparison to the bulbs, a higher abundance of ARGs was observed in the roots of onions. The 11 ARGs, including high-risk variants such as tetX and mexE , were detected co-occurring in both onion tissues and the surrounding soil. Fertilization treatment significantly changed the community composition of ARGs-related host bacteria in onion tissues. Livestock manure-based organic fertilizers elevated the potential exposure risk of ARGs in bulbs by more than 20%. Five strains of multidrug-resistant endophytic bacteria (including Streptomyces and Pseudomonas ) were isolated from the main edible parts of onion bulbs. It is worth noting that this study found that kaempferol (35-140 μg/L) and p-coumaric acid (2.5-10 μg/L) significantly enhanced the conjugation and transfer of the RP4 plasmid in the onion endophytes ( Bacillus sp. and Paenibacillus sp.) and soil microbial communities. Root exudates were the predominant factors regulating the transmission of ARGs in the soil-onion system.
研究领域:
环境科学
·
微生物学
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2021
·
IF 7.963
Shunyao Li,Dan Hong,Wenjun Chen,Jun Wang,Kai Sun
Humification processes of phenolic pollutants may play a profound role in environment purification and plant growth. However, little literature is performed to explore exoenzyme-driven humification to polymerize 17 β -estradiol (E2) and humic constituents (HCs), and the effects of their polymeric precipitates on plant growth are usually overlooked. Herein, E2 conversion and radish ( Raphanus sativus L.) growth were systematically investigated under humification mediated by extracellular laccase (EL) of Trametes versicolor . Results disclosed that EL-assisted humification achieved a wonderful E2 conversion efficiency (>99%) within 2-h, but the presence of HCs such as humic acid (HA), vanillic acid (VA), and ferulic acid (FA) impeded E2 elimination significantly. Compared with HC-free, the kinetics constants declined by 2.84-, 5.72-, and 5.22-fold with HA, VA, and FA present, respectively. Intriguingly, three close-knit self/cross-linked precipitates ( i.e. , E2-HA, E2-VA, and E2-FA hybrid precipitates) in dark gray, dark brown, and deep yellow were created after a continuous humification by phenolic radical-initiated polymerization mechanisms. The formation of these humified precipitates was extremely effective on circumventing phytotoxicity caused by monomeric E2, VA, or FA. Furthermore, they acted as humic-like organic fertilizers , accelerating seed germination, root elongation, and enhancing NaCl-tolerance of radish through the combination of oxygen-contained functional components and auxin structural analogues with unstable and stubborn carbon skeletons. This is the first study reporting the pollution purification and plant growth promotion in EL-activated humification. Our findings frame valuable perspectives regarding the natural detoxification and carbon sequestration of phenolic pollutants and the application of their polymeric precipitates in global crop production.
研究领域:
环境科学
·
植物学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2016
·
IF 2.687
Zhiyong Zhao,Yanmei Zhang,Yanfang Xuan,Wei Song,Wenshuai Si,Zhihui Zhao,Qinxiong Rao
The analysis of veterinary drugs in organic fertilizers is crucial for an assessment of potential risks to soil microbial communities and human health. We develop a robust and sensitive method to quantitatively determine 19 veterinary drugs (amantadine, sulfonamides and fluoroquinolones) in organic fertilizers. The method involved a simple solid-liquid extraction step using the combination of acetonitrile and McIlvaine buffer as extraction solvent, followed by cleanup with a solid-phase extraction cartridge containing polymeric mixed-mode anion-exchange sorbents. Ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC–MS/MS) was used to separate and detect target analytes. We particularly focused on the optimization of sample clean-up step: different diluents and dilution factors were tested. The developed method was validated in terms of linearity, recovery, precision, sensitivity and specificity. The recoveries of all the drugs ranged from 70.9% to 112.7% at three concentration levels, with the intra-day and inter-day relative standard deviation lower than 15.7%. The limits of quantification were between 1.0 and 10.0 μg/kg for all the drugs. Matrix effect was minimized by matrix-matched calibration curves. The analytical method was successfully applied for the survey of veterinary drugs contamination in 20 compost samples. The results indicated that fluoroquinolones had higher incidence rate and mean concentration levels ranging from 31.9 to 308.7 μg/kg compared with other drugs. We expect the method will provide the basis for risk assessment of veterinary drugs in organic fertilizers.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF BIOTECHNOLOGY
·
2016
·
IF 2.667
Waseem Raza,Zhong Wei,Ning Ling,Qiwei Huang,Qirong Shen
Three organic fertilizers made of different animal and plant waste materials (BOFs) were evaluated for their effects on the production of antibacterial volatile organic compounds (VOCs) by two Bacillus amyloliquefaciens strains SQR-9 and T-5 against the tomato wilt pathogen Ralstonia solanacearum (RS). Both strains could produce VOCs that inhibited the growth and virulence traits of RS; however, in the presence of BOFs, the production of antibacterial VOCs was significantly increased. The maximum inhibition of growth and virulence traits of RS by VOCs of T-5 and SQR-9 was determined at 1.5% BOF2 and 2% BOF3, respectively. In case of strain T-5, 2-nonanone, nonanal, xylene, benzothiazole, and butylated hydroxy toluene and in case of strain SQR-9, 2-nonanone, nonanal, xylene and 2-undecanone were the main antibacterial VOCs whose production was increased in the presence of BOFs. The results of this study reveal another significance of using organic fertilizers to improve the antagonistic activity of biocontrol agents against phytopathogens.
研究领域:
微生物学
·
植物病理学
✓ 已验证
DOI
PubMed
高影响因子
Water
·
2024
·Vol. 16
·期 10
·1374
·
IF 3
Jimeng Feng,Jian Shen,Yani Li,Lina Chi,Xinze Wang,Jiangping Qiu
Steroid estrogens (SEs) play a significant role as endocrine-disrupting substances, and one of their major sources is animal manure. However, there is limited information available regarding the loss of SEs in farmland soil after the application of commercial composted animal manure or fertilizers. To address this gap, our study aimed to simulate rainfall and flood irrigation scenarios and investigate the loss characteristics of SEs, as well as Chemical Oxygen Demand (COD), Total Nitrogen (TN), and Total Phosphorus (TP) in runoff from soil–manure mixtures. The results demonstrated that the loss concentrations of SEs (73.1 ng/L of the mean E2β active equivalent factor) presented a potential environmental risk. Additionally, substituting composted manure with commercial organic fertilizers lead to a significant reduction in TP (maximum 56%) and TN (maximum 24%) loss. Consequently, the application of commercial organic fertilizers offers considerable advantages in maintaining nitrogen and phosphorus fertilization efficiency while controlling SEs loss. Furthermore, our study explored the synergistic pollution mechanism among these pollutants and observed significant correlations between SEs and TN, TP, and COD loss concentrations, indicating the simultaneous occurrence and migration of these pollutants in agricultural non-point source pollution. These results provide valuable insights into the environmental risk associated with SEs from agricultural non-point sources.
研究领域:
环境科学
·
农业科学
✓ 已验证
DOI
高影响因子
BIOLOGICAL CONTROL
·
2014
·
IF 1.873
Waseem Raza,Jun Yuan,Ning Ling,Qiwei Huang,Qirong Shen
The volatile organic compounds (VOCs) produced by antagonistic microbes have great antifungal potential against soil-borne fungal pathogens. The VOCs produced by Paenibacillus polymyxa strain WR-2 in the presence of root exudates and organic fertilizer were identified and their effects on the growth and spore germination of Fusarium oxysporum f. sp. niveum were evaluated. The VOCs produced by WR-2 inhibited the growth of F. oxysporum by 38%, 36% and 40% in agar medium, sterilized soil and natural soil, respectively. This inhibitory effect was increased to 60%, 58% and 64% with the addition of organic fertilizer in agar medium, sterilized soil and natural soil, respectively. The addition of root exudates did not affect the production of antifungal VOCs by WR-2. The VOCs produced by WR-2 completely inhibited the germination of F. oxysporum spores. Out of 42 identified VOCs, seven VOCs; benzothiazole, benzaldehyde, undecanal, dodecanal, hexadecanal, 2-tridecanone and phenol were found to inhibit the growth of F. oxysporum . The results of these experiments suggest another significance of using organic fertilizer as a carrier material with the biocontrol agents to control soil-borne fungal pathogens.
研究领域:
微生物学
·
植物病理学
✓ 已验证
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2024
·
IF 8.2
Congzhu Liu,Xunan Yang,Zhen Yu,Jia Pu,Meiying Xu
Manganese dioxide (MnO 2 ), as a catalyst in composting processes, can accumulate in soil over multiple fertilization. However, its impact on crop growth remains to be explored. In this study, a pot experiment was conducted to investigate the impacts of MnO 2 on the tomato plant performance across various growth stages. Results showed that MnO 2 reduced the plant height, leaf number and length by 35.53 %, 27.61 %, and 37.00 %, respectively, and decreased the fruit weight (23.16 %) and sugar-acid ratio (29.7 %) of fruits compared to the MnO 2 -free control. The adverse impacts of MnO 2 on plant growth might be attributed to the inhibition of microbial activity in soil reflected by the reduction of soil urease (9.30 %) and acid phosphatase (12.52 %) activities, which decreased the efficiency of nutrients conversion and uptake. The decrease of nutrient elements in roots resulted in oxidative stress in the plant, inhibiting the plasma membrane H + -ATPase activity thereby reducing the translocation of nutrients (e.g., calcium, magnesium, and phosphorus) translocation from roots to leaves. Furthermore, the phytohormones indolebutyric acid, gibberellin, and jasmonic acid of leaves were disturbed. This study reveals the risks associated with the application of MnO 2 -containing organic fertilizers.
研究领域:
农业科学
·
植物生理学
·
土壤学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PLANT AND SOIL
·
2025
·
IF 4.1
Luo Jie,Zhang Qin,Chen Xiulong,Zhou Kai,Zhou Jiahui,Zhao Xiaomin
Background and Aims The heap leaching technique causes considerable damage to environment during the mining of ionic rare earth ore in southern China. Restoration of abandoned mining sites into arable land requires determination of the contents of rare earth elements (REEs) and non-rare earth toxic elements in soil and crops. Methods In the present study, five treatments, including rare earth tailings without any amendment or navel orange cultivation (RET), biochar and fly ash combined with three organic fertilizers (cow manure organic fertilizer [CF], pig manure organic fertilizer [PF], sugarcane bagasse organic fertilizer [SF]), and a treatment without any amendments (CK) were arranged to explore the effects of different treatments on rare earth and non-rare earth toxic elements contents in soil and crops. Results Total EDTA-extractable concentrations of REEs in CF, PF, and SF soils were 42.8%, 26.7%, and 30.5% lower than that those in CK, respectively. Total EDTA-extractable concentrations of non-REEs in the CF, PF, and SF, soils were significantly higher than those in the CK, with the highest in PF, at 337.5%. Compared with CK, all treatments reduced total REEs in navel orange leaves, peel, and pulp. Besides, total rare earth and non-rare earth toxic elements contents in the pulp of the all-treatments navel oranges were all lower than the pollutant limit values for food. Conclusions Use of biochar, fly ash, and SF is the optimal strategy for improving ionic rare earth tailings soil, and navel orange cultivation, is a potential strategy for remediating such abandoned mining sites.
研究领域:
环境科学
·
土壤科学
·
农业科学
·
地球化学
·
植物科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2020
·
IF 7.246
Meng Li,Xingqi Zhu,Hu Yang,Xianchuan Xie,Yuanting Zhu,Guizhou Xu,Xuejiao Hu,Zhengyu Jin,Ye Hu,Zibin Hai,Aimin Li
Starch wastewater treatment required extensive optimization because of its high concentrations of organic compounds and concentrated emissions. An environmental friendly dual flocculant , composed of cationic chitosan and anionic poly-glutamic acid, was investigated. Initial mechanistic studies involving independent injections of chitosan and poly-glutamic acid revealed their primary mechanisms of charge neutralization and bridging respectively. The highest removal rates of turbidity by chitosan and poly-glutamic acid were 90.1% and 91.8%. Dosing pattern studies showed that initial chitosan dosing provided the highest removal rate and widest effective pH range. Mechanistic studies using zeta potential and floc measurements, confirmed that chitosan neutralized negative charges, while long-chained poly-glutamic acid aggregated particulates . The effects of wastewater quality storage time, compound ratio, and total dosage were studied, with optimization at 0 h, 1:1, and 80 mg L −1 , which outperformed traditional flocculants polyaluminium chloride and polyferric sulfate. The removal rates of chemical oxygen demand , total nitrogen, total phosphorus and turbidity were 44.8, 53.4, 28.1, and 98.3%. The sediment was detected containing 95% of organic matters and 5.6% of total nutrients making it an excellent organic fertilizer . This dual system is promising in starch wastewater treatment and resource recovery considering its eco-friendly and effective flocculation performance.
研究领域:
环境工程
·
水处理
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2020
·Vol. 28
·期 10
·2669-2680
·
IF 2.572
Wen Lan,Zhang Yuanmeng,Liu Chengbin,Tang Yanhong
Besides excellent adsorption performance of adsorbents, the disposal of spent adsorbents should be considered for environmental concern. In this study, a new all-biomass double network Jute/sodium alginate (Jute/SA) gel is prepared via the simple dripping technique. 80 wt% water of Jute/SA hydrogel endows the adsorbent with high permeability for heavy metal ions diffusion onto internal adsorption sites. The Jute/SA gel adsorbent can efficiently remove heavy metals from melting wastewater, especially Pb 2+ and Cd 2+ . The adsorbent shows high adsorption capacities of 291.3 mg g −1 for Pb 2+ and 149.9 mg g −1 for Cd 2+ at 298 K. The adsorption equilibrium reaches within 45 min for 45 mg L −1 Cd 2+ and Pb 2+ using 1 g L −1 adsorbent, showing 98% removal efficiency of Pb 2+ and Cd 2+ . Moreover, the removal efficiencies in 45 min reach up to 99.1% for Pb 2+ (7.539 mg L −1 ) and 89.9% for Cd 2+ (4.743 mg L −1 ) in actual melting effluent containing Zn (43.95 mg L −1 ), Cu (16.50 mg L −1 ), Mn (19.24 mg L −1 ), Ni (4.90 mg L −1 ) and Fe (33.75 mg L −1 ) using 1 g L −1 adsorbent. The concentrations of Pb and Cd decrease below 0.001 mg L −1 using 4 g L −1 adsorbent. Furthermore, the adsorption efficiencies for Pb 2+ and Cd 2+ remain above 95% in the tenth cycle, and the desorption efficiency is up to 99%. In addition, the spent Jute/SA gel was a good organic fertilizer for plant growth. This work develops an efficient and eco-friendly biomass adsorbent for the removal of heavy metals in actual wastewater.
研究领域:
环境科学
·
材料科学
·
废水处理
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Lin Zhu,Lu Feng,Haixi Luo,Rong-shu Dong,Ming-yan Wang,Guanglong Yao,Jian Chen
Desmodium intortum (Mill.) Urb. is an important source of organic fertilizers , but its utilization value has not been developed favorably. The utilization of polyvinyl alcohol is optimized, combined with the film-forming properties of polyvinyl alcohol , to prepare a high-quality composite film. When the nanocellulose content reached 0.8 %, the tensile stress reaches the maximum value, and the composite film is not easily torn. The addition of NCC reduces the crystallinity of the PVA component and increases the initial decomposition temperature of the alcohol-nanocellulose composite film. The thermal decomposition rate of the PVA/NCC composite film is slightly lower than that of the pure PVA film, indicating that the addition of NCC improves the heat resistance of the PVA film. The electron microscope results show that PVA has good compatibility with NCC. The release results of tetracycline hydrochloride showed that when the nanocellulose content reached 0.8 %, the loading rate reached 83.07 %. R2 value of the two materials is 0.99 under the zero-order model fitting, which suggest the release process is transported by Supercase-II transport kinetics. Through the inhibition zone and cytotoxicity, it is proved that this material has a certain bacteriostatic effect and good cytocompatibility.
研究领域:
材料科学
·
药学
·
生物技术
·
农业科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）