Article
Soil Science
Karin Blomback, Carl H. Bolster, Anders Lindsjo, Kathrin Hesse, Helena Linefur, Mohammed Masud Parvage
Summary: This study compared four different indices for soil phosphorus saturation (DPS) in predicting the release of dissolved P into soil solution. The PSI index combined with either P-AL or P-O1s provided the best predictions for both P-caCl2 and P-w. Adding additional explanatory variables did not significantly improve the regression models. Multiple measures of P saturation provide similar predictions of soil's potential for releasing dissolved P, offering flexibility in identifying leaching prone hotspots.
Article
Environmental Sciences
Taylor Roswall, Emileigh Lucas, Yun-Ya Yang, Charles Burgis, Isis S. P. C. Scott, Gurpal S. Toor
Summary: The study suggests that current extraction methods might underestimate the soluble P pool in high or legacy P soils, and recommends using a higher soil-to-water ratio to extract WEP. By increasing the soil-to-water ratio and conducting sequential extractions on eight legacy P soils, it was possible to exhaust the WEP pool, significantly improving the measurement accuracy of WEP.
Article
Environmental Sciences
W. T. Pluer, J. M. Plach, A. Hassan, D. Price, M. L. Macrae
Summary: This study compared the effectiveness of a natural riparian system with a vegetated buffer strip and a constructed treatment system in receiving bunker silo effluent. The slag filter showed the greatest treatment efficacy, while passive treatment systems become P saturated over time, limiting their longterm P removal efficacy.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Sangar Khan, Chunlong Liu, Paul J. Milham, Kamel Mohamed Eltohamy, Yasir Hamid, Junwei Jin, Miaomiao He, Xinqiang Liang
Summary: The particle size of manure fertilizer affects the release of colloidal phosphorus in amended soils. The use of nano and micro manures can effectively reduce the release of colloidal phosphorus from manure amended soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Claude-Alla Joseph, Lotfi Khiari, Jacques Gallichand, Ned Beecher
Summary: The study found that using ash from municipal sludge incineration as phosphorus fertilizer can enhance ryegrass P uptake, with effectiveness varying depending on the origin of the sludge and P solubility. In clay soil, SIA had greater P effectiveness than RP, while in sandy loam soil, they were similar. The oxalate extraction method was shown to be a better predictor of SIA P availability compared to the commonly used NAC method.
Article
Engineering, Geological
Jiazuo Zhou, Wansheng Pei, Xiyin Zhang, Wanlin Liu, Changfu Wei
Summary: This study introduced an easy freezing ring test to assess frost susceptibility of soil, which showed differences in water migration and frost heave capabilities among different soil types and were influenced by initial water content and salt concentration. The freezing ring test is easy and time-saving, making it suitable for large engineering projects.
Article
Soil Science
Chunhao Gu, Qiuhong Zhou, Roland D. Cusick, Andrew J. Margenot
Summary: The study evaluated the potential effects of STP methods and soil properties on STP values for soils with residual struvite, finding significantly higher dissolution of struvite in acidic soils with low clay content compared to high clay content. This indicates the need to account for the impacts of residual struvite on measured STP values.
Article
Environmental Sciences
Junwei Jin, Yunying Fang, Shuang He, Yu Liu, Chunlong Liu, Fayong Li, Sangar Khan, Kamel Mohamed Eltohamy, Boyi Liu, Xinqiang Liang
Summary: This study investigated the effects of three different fertilizers on soil phosphorus (P) species through sequential chemical extraction (SCE) and 31P NMR techniques, as well as the degree of P saturation (DPS) in paddy and vegetable fields. The results showed that biochar-blended organic fertilizer and organic fertilizer increased the total and available P contents in the soil, but decreased the DPS values. However, chemical fertilizer had a smaller impact on soil P species. Biochar-blended organic fertilizer improved P availability and decreased P loss risk through the alteration of soil P species.
Article
Soil Science
Gang Xu, Yuxuan Ren, Mengyu Yue, Yingchun Lv, Xiaobing Chen, Haibin Hui
Summary: This study investigates the factors controlling phosphorus sorption and release in coastal freshwater wetlands surrounding China's Bohai Rim. The results show that freshwater restoration significantly increases phosphorus sorption capacity, while not greatly affecting the phosphorus release potential in these wetlands.
Review
Environmental Sciences
Maarten van Doorn, Debby van Rotterdam, Gerard Ros, Gerwin F. Koopmans, Erik Smolders, Wim de Vries
Summary: Current P fertilizer recommendations must be revised to balance crop yield, water quality, and finite P resources. Current soil P tests do not provide the necessary insights. The oxalate extraction method shows promise as an agri-environmental soil test as it measures the total pool of P and the maximum P sorption capacity. These insights are crucial for assessing crop response, P loss risk, and the judicious use of finite P reserves.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Olga V. Andreenkova, Olga D. Shishkina, Alexandra I. Klimenko, Aleksandra E. Korenskaia, Margarita A. Bobrovskikh, Natalja V. Shatskaya, Gennady V. Vasiliev, Nataly E. Gruntenko
Summary: Several methods for extracting Wolbachia DNA from insect hosts have been described, but the low quantity of the bacteria made these techniques labor-intensive. This paper proposes a simplified and accelerated method for isolating high-purity Wolbachia DNA from Drosophila melanogaster, using centrifugation, filtration, and a modified version of the Livak buffer protocol. The proportion of Wolbachia DNA in total DNA was quantified using sequencing and bioinformatic analysis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
K. Ashida, T. Watanabe, S. Urayama, A. Hartono, M. Kilasara, A. D. Mvondo Ze, A. Nakao, S. Sugihara, S. Funakawa
Summary: In tropical surface and subsurface soils, there is a strong correlation between SOC and Al-o + Fe-o as well as Al-p + Fe-p, regardless of the degree of weathering. However, the relationship between clay + silt and SOC is weaker.
Article
Biochemical Research Methods
Ying Liu, Xinmeng Tian, Hui Xu, Ganbing Zhang
Summary: In this study, a new soil extraction method was developed for the simultaneous extraction and determination of residual fipronil in soil using online micro-matrix cartridge extraction combined with high performance liquid chromatography-mass spectrometry (HPLC-MS). The method showed better performance in terms of desorption efficiency, analysis time, solvent consumption, sensitivity, and automation compared to conventional extraction methods. It also demonstrated wide universality in various pesticide-soil interactions, different types of compounds, and soil types. The findings provide insights into the development of a mild, highly efficient, reliable, and universal extraction method for pesticide contaminated soil.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Environmental Sciences
Mohsen Jalali, Mahdis Paripour
Summary: This study investigates the fractionation, mobility, and risk of phosphorus leaching in greenhouse soils. The results show a strong correlation between organic matter and Olsen-extractable P with cumulative P leached. pH has a significant impact on P mobility. Phosphorus leaching is identified as a significant risk for greenhouse vegetable soils.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Forestry
Ruth C. Martin-Sanz, Valentin Pando, Teresa Bueis, Maria-Belen Turrion
Summary: This study found that soil texture, carbonates content, water retention capacity, and organic matter substantially affected phosphorus fractions in calcareous soils. Biological mineralization processes played a key role in the soil phosphorus cycle, while total phosphorus, carbonates content, soil texture, and water availability drove forest productivity in the studied plots.
