Article
Geosciences, Multidisciplinary
Muhammad Abdul Munnaf, Abdul Mounem Mouazen
Summary: External factors can negatively affect the accuracy of predicting soil organic carbon using online visible and near-infrared spectroscopy. This study compared the performance of four algorithms and found that EPO and OSC models provided better prediction accuracy.
Article
Automation & Control Systems
Jian Zhang, Abdul M. Mouazen
Summary: This study presents the development of a non-integer order SavitzkyGolay derivative function (NISGDF) for the analysis of phosphorus composition in manure. The NISGDF offers significant flexibility in noise reduction, elimination of baseline and offset, and improves the prediction accuracy of phosphorus compared to the traditional integer order SavitzkyGolay derivative function (ISGDF).
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2023)
Article
Agriculture, Multidisciplinary
Muhammad Abdul Munnaf, Abdul Mounem Mouazen
Summary: A novel Soil Fertility Index (SFI) was developed using online collected visible and near-infrared (vis-NIR) spectra, which accurately predicted soil fertility attributes and helped manage in-field variabilities.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2021)
Article
Chemistry, Physical
Natthapong Monarumit, Thanapong Lhuaamporn, Pornsawat Wathanakul, Chatree Saiyasombat, Wiwat Wongkokua
Summary: Recently, the concept of Fe3+-Ti4+ mixed acceptor states in the energy band gap of sapphire has been proposed as the cause of blue coloration. The blue color in sapphire is faded and turns yellow by beryllium heat treatment. It has been revealed as the color center in Be-treated yellow sapphires. The mechanism underlying these phenomena was explained and discussed in this study.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Review
Instruments & Instrumentation
Xuan Qi, Yudong Lian, Luyang Xie, Yulei Wang, Zhiwei Lu
Summary: Water pollution poses a significant threat to public health and social stability due to rapid economic development and urbanization. Therefore, accurate and rapid monitoring of water quality is crucial. Spectral analysis technology, as an environmentally friendly, nondestructive, and efficient detection technology, provides an effective tool for qualitative analysis and quantitative detection of pollutants in the water environment. This paper studies the principles of UV-Vis spectroscopy and near-infrared (NIR) spectroscopy and their applications in water quality detection. It discusses the use of UV-Vis and NIR spectroscopy techniques for detecting various water quality parameters.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Article
Agronomy
Javier Reyes, Mareike Liess
Summary: Agricultural soils play a crucial role in storing soil organic carbon (SOC) and their management is important for mitigating climate change. This study collected continuous monitoring data of SOC within agricultural fields using an on-the-go spectrophotometer. The results show the high potential of on-the-go spectral data for field-scale spatial-temporal monitoring of SOC.
Article
Soil Science
Muhammad Abdul Munnaf, Angela Guerrero, Said Nawar, Geert Haesaert, Marc Van Meirvenne, Abdul Mounem Mouazen
Summary: Successful modelling of vis-NIR spectra is crucial for accurate variable rate applications of farm input resources. This study optimized on-line collected spectra for the prediction of soil quality indicators using spiking, clustering, and extra-weighting methods. Results showed that combining clustering with extra-weighting improved prediction accuracy for soil pH, organic carbon, extractable phosphorous, and potassium.
SOIL & TILLAGE RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Khadija Najjar, Nawaf Abu-Khalaf
Summary: The study demonstrated the potential of VIS/NIR spectroscopy in distinguishing between different varieties of tomatoes and predicting their quality parameters. It showed high correlation coefficients and performance deviation ratios for most quality parameters, indicating the effectiveness of the spectroscopy technique.
Article
Chemistry, Multidisciplinary
Yiran Wu, Xinhua Zhu, Qiangsheng Huang, Yuan Zhang, Julian Evans, Sailing He
Summary: Fruit quality assessment is crucial for market value, consumer acceptance, and post-harvest management. Spectroscopic techniques have become popular for non-destructive evaluation. In this study, a deep-learning network called GCNN-LSTM-AT is proposed for predicting five important parameters of tangerines using visible and near-infrared spectroscopy. The proposed model combines GCN, CNN, LSTM, and attention mechanism to capture spatial and sequential dependencies and achieves accurate predictions for tangerine quality attributes exceeding other algorithms and models.
APPLIED SCIENCES-BASEL
(2023)
Article
Instruments & Instrumentation
Jian Zhang, Abdul M. Mouazen
Summary: Visible and near infrared spectroscopy (vis-NIRS) has potential in predicting soil phosphorous (P) accurately, but spectra pre-treatment is crucial. The modified Riemann-Liouville (RL) fractional-order Savitzky-Golay filter (MRLFOSGF) offers flexibility and better performance in predicting P in soil compared to the conventional integer-order Savitzky-Golay filter (IOSGF). The MRLFOSGF demonstrates wider applicability and higher prediction accuracy in soil P prediction using partial least squares regression (PLSR) model.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Erika Di Iorio, Pasquale Napoletano, Luana Circelli, Valeria Memoli, Lucia Santorufo, Anna De Marco, Claudio Colombo
Summary: This study compares the soil biological properties and carbon storage of three young Technosols derived from volcanic soil in Campi Flegrei, Italy, with two natural volcanic soils. The results show that Technosols have lower soil organic matter content compared to natural volcanic soils. However, after six years of vegetation, Technosols show significant potential for carbon sequestration and supporting biological activity.
Article
Chemistry, Analytical
Jie Wang, Wei Xue, Xiaojun Shi, Yangchun Xu, Caixia Dong
Summary: This study proposed a new technique based on in-field visible-near infrared (VIS-NIR) spectroscopy and the Adaboost algorithm for the non-destructive determination of leaf nitrogen concentration in pear orchards with mixed cultivars. The results showed that the proposed method had the best accuracy in both training and test datasets, making it a robust and sensitive tool for N management in heterogeneous pear orchards.
Article
Food Science & Technology
Gema Puertas, Patricia Cazon, Manuel Vazquez
Summary: Membrane separation technology is widely used in research, food and pharmaceutical industries. This study assessed the application of UV-VIS-NIR spectroscopy in quantifying the composition of fractions obtained through membrane separation. The results showed that UV-VIS-NIR spectroscopy combined with chemometric tools is a reliable and efficient method for composition analysis in the membrane filtration process.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Review
Food Science & Technology
Justyna Grabska, Krzysztof B. Bec, Nami Ueno, Christian W. Huck
Summary: Spectroscopic methods, specifically in the near-infrared (NIR) and visible (Vis) regions, have shown great potential in assessing and optimizing the quality parameters of apples. These methods can evaluate external and internal characteristics, detect defects, measure nutrient content, and assess authenticity and origin. The use of optical sensors and portable instruments can enhance apple crop quality, improve production efficiency, and meet consumer demands.
Article
Agronomy
Maylin Acosta, Isabel Rodriguez-Carretero, Jose Blasco, Jose Miguel de Paz, Ana Quinones
Summary: Visible and near-infrared hyperspectral imaging was used to determine the nutrient contents in persimmon leaves. The models based on partial least square regression achieved satisfactory results for nitrogen, phosphorous, calcium, magnesium, and boron, but lower prediction rates were attained for potassium, iron, copper, zinc, and manganese.
Article
Soil Science
Muhammad Abdul Munnaf, Geert Haesaert, Abdul Mounem Mouazen
Summary: This study compared the agronomic and economic responses of maize to site-specific seeding (SSS) and uniform rate seeding (URS). The results showed that SSS can increase maize yield and improve gross margin. The SSS-Kings treatment performed the best in both fields.
SOIL & TILLAGE RESEARCH
(2022)
Article
Soil Science
Yongsheng Hong, Muhammad Abdul Munnaf, Angela Guerrero, Songchao Chen, Yaolin Liu, Zhou Shi, Abdul Mounem Mouazen
Summary: Spectral techniques, including the fusion of visible-to-near-infrared and mid-infrared absorbance, can improve the estimation of soil organic carbon. The use of continuous wavelet transform and optimal band combination strategies contribute to the accuracy of the prediction models. Among the investigated models, the combination of visible-to-near-infrared and mid-infrared using the optimal band combination fusion at a specific scale yielded the best prediction.
SOIL & TILLAGE RESEARCH
(2022)
Article
Environmental Sciences
Nikolaos Karapetsas, Thomas K. Alexandridis, George Bilas, Muhammad Abdul Munnaf, Angela P. Guerrero, Maria Calera, Anna Osann, Anne Gobin, Tomas Reznik, Dimitrios Moshou, Abdul Mounem Mouazen
Summary: Soil surveys with line-scanning platforms have advantages over traditional methods, especially in field-scale soil mapping and applications. These platforms carry VNIR spectrometers and have been extensively used for soil fertility assessment and site-specific management zone delineation. However, the massive datasets generated from VNIR applications in precision agriculture pose challenges for interpolation techniques. This study applied fixed-rank kriging (FRK) geostatistical interpolation to VNIR soil scanner data, and incorporated auxiliary Sentinel-2 data-based biophysical parameters to improve filtering performance and generate uniform patterns of spatial variation.
Article
Soil Science
Jian Zhang, Angela Guerrero, Abdul M. Mouazen
Summary: This study developed a quantitative analysis tool to compare traditional uniform-rate application with variable-rate manure application (VRMA), and evaluate environmental risks. The results showed that VRMA can reduce nitrogen and phosphorus consumption more effectively, and the choice of treatment schemes, manure quality, and legislative limits are important factors affecting manure consumption.
SOIL & TILLAGE RESEARCH
(2022)
Article
Soil Science
Yongsheng Hong, Yiyun Chen, Songchao Chen, Ruili Shen, Bifeng Hu, Jie Peng, Nan Wang, Long Guo, Zhiqing Zhuo, Yuanyuan Yang, Yaolin Liu, Abdul Mounem Mouazen, Zhou Shi
Summary: Accurate quantification of soil organic carbon (SOC) in urban areas is crucial for effective city management and understanding anthropogenic changes. Visible and near infrared (vis-NIR) spectroscopy has been proven to be a time and cost-effective method for monitoring SOC content. The relationships between SOC and spectral data in urban soils are still unknown. This study evaluated the performance of multiple stratification strategies for predicting SOC content in urban soils. The results showed that stratification based on land-use/land-cover (LULC) improved the prediction performance, with the highest performance achieved by the Cubist model. Areas with high SOC values were mainly located in the city center. Stratification by LULC class is a promising strategy for estimating SOC in urban soil spectral libraries.
Article
Environmental Sciences
Felix Nyarko, Filip M. G. Tack, Abdul M. Mouazen
Summary: This study successfully estimated the concentrations of several metal elements in soils using visible and infrared spectroscopy combined with different calibration methods. Full-range spectroscopy showed higher accuracy and performed best in certain elements' predictions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Jose Ignacio Morales-Aragones, Matthew St Michael Williams, Halleluyah Kupolati, Victor Alonso-Gomez, Sara Gallardo-Saavedra, Alberto Redondo-Plaza, Miguel Angel Munoz-Garcia, Francisco Jose Sanchez-Pacheco, Luis Hernandez-Callejo
Summary: In this paper, a PLC system utilizing loop resonance of a DC-PV string is developed and implemented. Low-cost and easy-to-install transceivers for each PV module have been designed and tested. An anti-saturation coil is also designed to prevent core saturation. Bi-directional half-duplex communication using a simple ASK modulation scheme is achieved with a carrier frequency of up to 1 MHz (bitrate of 150 kbps). The transmission and reception performance, as well as the overall system cost compared to previous literature, are presented.
Article
Agriculture, Multidisciplinary
Farida Yasmin Ruma, Muhammad Abdul Munnaf, Stefaan De Neve, Abdul Mounem Mouazen
Summary: This study aimed to estimate the MZ-specific SNMR of unamended soils. Results showed significant variation in soil N mineralization and SNMRs were mainly positively correlated with pH, total N, soil mineral N, and sand content, while negatively correlated with clay content. Although there were no significant differences in SNMR among MZs per field, incorporating MZ-specific SNMR in management decisions will be crucial in optimizing N use efficiency in precision farming.
PRECISION AGRICULTURE
(2023)
Article
Plant Sciences
Ana Paula Rosa, Teresa Dias, Abdul M. Mouazen, Cristina Cruz, Margarida Maria Santana
Summary: Considering the increasing frequency and duration of drought events caused by climate change, enhancing plant drought tolerance is a priority. The search for plant growth promoting rhizobacteria (PGPR) that can improve plant drought tolerance has been ongoing for a long time, but the results have been inconsistent. In this study, we summarize the mechanisms of PGPR that enhance plant drought tolerance, identify the issues in current PGPR isolation and selection methods, and discuss the key points for defining new strategies to obtain optimal PGPR for improving plant drought tolerance. Drought and host genotype affect rhizo-communities, and host-mediated selection strategies can be used to obtain a drought-adapted rhizomicrobiome that can serve as a source for PGPR isolation. Alternatively, an integrated omics-level analysis can enhance our understanding of the mechanisms of rhizomicrobiome construction, allowing for the design of a targeted approach focused on key plant growth-promoting traits. New strategies for building PGPR consortia to enhance plant drought tolerance are also suggested.
JOURNAL OF PLANT INTERACTIONS
(2023)
Article
Environmental Sciences
Sonia Akter, Lis Wollesen de Jonge, Per Moldrup, Mogens Humlekrog Greve, Trine Norgaard, Peter Lystbaek Weber, Cecilie Hermansen, Abdul Mounem Mouazen, Maria Knadel
Summary: This study aimed to evaluate the feasibility of using visible near-infrared spectroscopy (vis-NIRS) for estimating the soil sorption coefficient (K-d) of glyphosate. Results showed that vis-NIRS had higher predictive ability for K-d compared to pedotransfer functions (PTFs) on the combined dataset, but PTFs provided slightly better estimations on the samples from Denmark and Greenland. However, the differences in prediction accuracy between vis-NIRS and PTF were statistically insignificant. Considering the multiple advantages of vis-NIRS, it can serve as a faster and easier alternative to PTFs for estimating glyphosate K-d.
Editorial Material
Agronomy
Long Guo, Xiaodong Song, Abdul M. Mouazen, Fu Peng
Article
Agronomy
Baowei Su, Huan Zhang, Yalu Zhang, Shuangshuang Shao, Abdul M. M. Mouazen, He Jiao, Shuangwen Yi, Chao Gao
Summary: The coupling cycles of soil carbon (C), nitrogen (N), and phosphorus (P) have a significant impact on biogeochemical processes and ecosystem services. Reclamation of wetland areas for agriculture in China has led to nutrient decoupling, with C and N accumulation and P decline. Different land use patterns following reclamation result in distinct soil nutrient structures. Proper management and fertilization strategies are necessary to regulate nutrient imbalances and maintain crop growth, soil quality, and ecosystem health.
Article
Microbiology
Sylia Ait Bessai, Joana Cruz, Pablo Carril, Juliana Melo, Margarida M. Santana, Abdul M. Mouazen, Cristina Cruz, Ajar Nath Yadav, Teresa Dias, El-hafid Nabti
Summary: This study investigates the existence of halotolerant bacteria with plant growth-promoting capabilities in wheat, a salt-sensitive crop, and examines their impact on wheat growth under different salinity levels.
Article
Food Science & Technology
Ines Ferreira, Teresa Dias, Abdul M. Mouazen, Cristina Cruz
Summary: Terfezia arenaria, a desert truffle with nutritional and aromatic properties, has similar nutritional and chemical compositions to commercial mushroom and truffle species, but a different aromatic profile. It can be an ideal source for plant-based meat products.
Article
Chemistry, Physical
M. B. Nieto-Morone, M. C. Alonso-Garcia, F. G. Rosillo, J. D. Santos, M. A. Munoz-Garcia
Summary: PV waste mass generation is projected for 2030 and 2050 based on historical data and NECP targets, with Germany, Argentina, and China achieving a significant percentage of their goals while the USA lags behind. An updated equation is introduced for PV waste mass calculations, and the results show that the EU, China, and the USA are major contributors to PV waste mass by 2030, emphasizing the need for a solid recycling industry to manage the increasing mass of PV waste.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Soil Science
Lin Liu, Yili Lu, Robert Horton, Tusheng Ren
Summary: A new approach is presented in this study to estimate the parameters of the soil water retention curve (SWRC). The new method accurately estimates SWRCs by using measured thermal conductivity-water content curves, soil texture, bulk density, and field capacity water content.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Zhongshan Dai, Yong Zhang, Yujie Wei, Chongfa Cai
Summary: This study investigates the effects of erosion degradation and long-term manure fertilization on soil properties and crop yield in Northeast China. Results show that erosion degradation and manure fertilization have lasting impacts on soil physical structure throughout the soil profile, while their effects on soil nutrient properties are focused in shallow layers. Manure fertilization significantly improves soil functional index (ISI) and maize yield for degraded soils. Erosion degradation has a greater influence on ISI and maize yield than manure fertilization.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xintong Xu, Ruiyu Bi, Mengxin Song, Yubing Dong, Ying Jiao, Bingxue Wang, Zhengqin Xiong
Summary: The substitution of organic fertilizers for inorganic fertilizers has a significant impact on soil organic carbon (SOC) and can help combat soil degradation and climate change in intensive vegetable production.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Moritz Koza, Roger Funk, Julia Poehlitz, Christopher Conrad, Olga Shibistova, Tobias Meinel, Kanat Akshalov, Gerd Schmidt
Summary: Semi-arid regions in Central Asia are experiencing wind erosion due to steppe conversion and unsustainable farming practices. A study conducted in Kazakhstan used a mobile wind tunnel to assess soil erodibility under real conditions. The results showed significant differences in soil erosion based on initial conditions and mechanical stress, emphasizing the importance of proper soil management to prevent severe events.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Tong Li, Guorui Li, Zhiqiang Lu, Deqiang Zhao, Yuze Li, Ziting Wang, Xiaoxia Wen, Yuncheng Liao
Summary: Conservation agriculture with three management principles is effective in mitigating soil erosion and nutrient loss. This study found that no tillage significantly increased soil extracellular enzyme activities, while legume incorporation only had a significant effect on phosphorus-acquiring enzymes. Crop diversity positively influenced the no tillage-induced increase in enzyme activities.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Zahra Khasi, Mohammad Sadegh Askari, Setareh Amanifar, Kamran Moravej
Summary: This research aims to evaluate the applicability of visual soil evaluation methods for agricultural systems in semi-arid regions and assess the relationship between soil physical quality and crop yield. The results indicate that visual evaluation methods can effectively assess soil conditions, and optimal soil structural quality is crucial for sustainable crop production.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Amin Jannatul Ferdous, Xiaolin Wang, Katie Lewis, John Zak
Summary: Conservative agricultural management strategies can enhance crop productivity by altering soil microbiome, and incorporating legumes into cover crops in semi-arid regions can improve the dynamics of rhizobial communities. There is a strong underlying relationship between soil management and bacterial diversity in the soil.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Haiman Wang, Wankui Ni, Haisong Liu, Kangze Yuan
Summary: This study investigates the structural strength of the Loess-Paleosol Sequence (LPS) and finds that the strength tends to increase with burial depth, with the loess layer weaker than the paleosol layer. The microstructure of the LPS also undergoes significant transformations with increased burial depth, transitioning from an overhead structure to a matrix structure. These findings highlight the importance of climate conditions on the structural strength of the LPS.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Ranabir Chakraborty, V. K. Sharma, Debarup Das, D. R. Biswas, P. Mahapatra, D. K. Shahi, M. Barman, K. A. Chobhe, D. Chakraborty
Summary: This study aimed to evaluate the impact of long-term nutrient management practices on P fractions and P adsorption-desorption behaviour of an acid soil with a soybean-wheat cropping system. The findings revealed that amorphous Fe and Al, which play a significant role in P fixation, increased due to cultivation. The NPK+Lime treatment offered the most balanced approach, improving both crop yield and P uptake while effectively managing P dynamics in the soil. On the contrary, long-term application of NPK+FYM in an acid soil may result in faster P saturation of adsorption sites and increase the chances of leaching and eutrophication. Tailored P fertilization strategies should be developed to better utilize the PFe and PAl fractions and supplementing applied P.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Yuan Li, Ying Li, Qingping Zhang, Gang Xu, Guopeng Liang, Dong-Gill Kim, Carmen Rosa Carmona, Mei Yang, Jianming Xue, Yangzhou Xiang, Bin Yao, Yuying Shen
Summary: Agricultural intensification has led to severe degradation of croplands in China. Converting degraded croplands to grasslands can increase soil organic carbon and nitrogen content, but may decrease soil pH and available phosphorus. The duration of conversion and mean annual precipitation are major factors influencing soil changes.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xinliang Wu, Sixu Yao, Jinxing Zhou
Summary: The coupling effect of slaking and mechanical breakdown on aggregate stability was evaluated using a new method. This method can partition the unique and shared effects of these two breakdown mechanisms and showed better performance in predicting soil erosion compared to existing methods.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xinni Ju, Lei Gao, Dongli She, Yuhua Jia, Zhe Pang, Yaji Wang
Summary: This study linked soil pore structures quantified by X-ray computed tomography (CT) scanning and infiltration processes traced using stable hydrogen and oxygen isotopes under different land uses in the red soil region of southern China. The results showed that soil pore characteristics mainly affected soil water transport, while other soil properties played more important roles in soil water retention. CT-based porosity and soil texture were considered crucial indicators in the evaluation of water exchange during infiltration processes.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Hongwei Xu, Qing Qu, Jiaping Yang, Zhen Wang, Minggang Wang, Rentao Liu, Sha Xue
Summary: This study systematically analyzed the effects of drought on terrestrial ecosystem C-N-P stoichiometry on a global scale. The results showed that drought significantly decreased the C:N ratio in soil, enzymes, shoots, and roots. Soil microbes were limited by N, whereas plants were restricted by P under drought stress. Drought intensity and duration were negatively correlated with shoot N:P and vector angle.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Sara L. Bauke, Sabine J. Seidel, Miriam Athmann, Anne E. Berns, Melanie Braun, Martina I. Gocke, Julien Guigue, Timo Kautz, Ingrid Koegel-Knabner, Juliette Ohan, Matthias Rillig, Michael Schloter, Oliver Schmittmann, Stefanie Schulz, David Uhlig, Andrea Schnepf, Wulf Amelung
Summary: Agricultural production in Central Europe is increasingly affected by extreme drought events. This study found that incorporating organic matter, especially biowaste compost, into the subsoil significantly increased root growth and subsequently improved crop nutrient uptake, biomass, and grain yield. The incorporation of green waste compost had less pronounced effects.
SOIL & TILLAGE RESEARCH
(2024)
Article
Soil Science
Xi Chen, Xuesong Wang
Summary: Based on the application of the integrated wind erosion modeling system, this study comprehensively simulated the loss and conservation of nutrients during aeolian dust emissions in the arid and semiarid areas of China. The results showed a decreasing trend in nutrient losses over the past two decades, with the ecosystems playing a crucial role in preventing these losses. The prevention rates of different land cover types were generally high, indicating the effectiveness of conservation measures.
SOIL & TILLAGE RESEARCH
(2024)