Articles tagged with Soils
Researchers Jane Hill and Barbara Cade-Menun found that phytate concentration was high in manures but not retained in crop soils and sediments. The study concluded that phytate is most likely to be hydrolyzed in situ by microorganisms.
A study by Rachel Smallman and Neal J. Roese found that people with positive preferences sort items into finer, more specific categories compared to those with negative preferences. This suggests that our likes can shape how we categorize information, particularly in consumer psychology where this can influence brand perceptions.
A team of Wisconsin researchers has discovered that birnessite, a common soil mineral, can penetrate and degrade the prion's armor. This finding may provide new methods for decontaminating soil and other environments where prions reside.
Research shows that organic soils continue to acidify, posing a threat to forest health in the northeastern US. Despite declines in acidic deposition, soil base cation pools are insufficient to neutralize acidic inputs, leading to continued chemical recovery delays and increased vulnerability to winter injury.
Researchers at Iowa State University used NCSS data to create a detailed Quaternary geologic map of the Des Moines Lobe, achieving strong agreement with existing maps. The map showcases finer detail and user-controllable scale, making it suitable for various disciplines.
The study found that removing corn residue can lower N fertilizer requirements, but careful management is still necessary to balance erosion risks and retain adequate residue. Researchers suggest alternative tillage systems like strip-till continuous corn as a viable option in certain environments.
A new calibration tool has been developed to help students and soil scientists accurately measure rupture resistance, a key factor in determining soil strength. The tool consists of four pressure calibration assemblies with varying pressures, allowing users to calibrate their thumb and forefinger for precise measurement.
Researchers found that applying municipal leaves to soil surface increased clean pumpkin fruit percentage by up to 25% compared to bare soil. This study provides a win-win solution for farmers and taxpayers, reducing leaf disposal costs while improving soil health.
Michigan State University has licensed technology that enables plants to use atmospheric nitrogen, resulting in significant growth and yield improvements of up to 90 percent. The microbial fertilizers are cost-effective, environmentally friendly, and have been shown to increase plant resistance to disease.
Research focuses on transport phenomena in heterogeneous media, exploring anomalous transport and its role in hydrogeology. The study highlights the importance of concentration tails in assessing radioactive waste disposal reliability.
Scientists at UW-Madison examine the role of soil patterns in dam restoration, discovering superimposed patterns that chronicle the basin's history. The researchers found fundamental differences in nutrient levels and physical structure between sediments deposited over the dam's lifetime and buried soils.
A team of scientists developed a model to measure soil quality and predict long-term changes in soil organic carbon and organic matter. The CQESTR model simulates the effects of various management practices on soil dynamics, providing insights for sustainable crop and soil management.
The number of students studying soil science as a major is declining across the United States, according to Mary Collins' article published in the Journal of Natural Resources and Life Sciences Education. The decline affects not only students but also courses offered, quality of graduate students, and potential department mergers.
A new study led by a University of Georgia researcher found that elevated levels of decomposition don't persist after warmer temperatures, contradicting current models. The study reveals that soil microbes decrease in abundance under warm conditions, reducing their respiration rates.
The American Society of Agronomy (ASA), Crop Science Society of America (CSSA), and Soil Science Society of America (SSSA) presented various scholarships to students pursuing careers in agronomic sciences. The scholarships recognize academic excellence, leadership activities, and future plans related to the field.
Researchers conducted a high-resolution soil survey of Capulin Volcano National Monument in New Mexico, collecting over 140 soil samples and creating interpolated maps. The study provided valuable insights into the park's soil characteristics, enabling more effective management of natural resources.
Estimating soil texture-by-feel is an important skill that impacts land-use decisions and various soil properties. The technique allows researchers to provide quick, reliable estimates of soil texture in the field.
The sensors can be buried in a grid pattern and relay data to a central computer, providing real-time high-resolution data for farmers and researchers. This technology aims to maximize yields, minimize environmental impacts and provide more accurate crop growth predictions.
A study by Cardiff University scientists has revealed that common earthworms in the UK are composed of multiple distinct species, each with unique roles in food chains and soil ecology. The discovery, published in Molecular Ecology, sheds new light on the importance of earthworms in agriculture.
Researchers at Ohio State University have developed an in-vitro method to test the digestion and absorption of arsenic-laden soil. This simulation can help determine the amount of arsenic that dissolves during digestion, allowing for more efficient assessment of contaminated sites.
A new book from the American Society of Agronomy provides detailed information on the importance of sulfur in agriculture. The book examines the central role that sulfur plays as a nutrient affecting crop yield and quality, animal feed value and human diet.
Researchers have discovered a new type of atmospheric aerosol particle called iberulite, which forms in the troposphere from mineral small grains emitted from desert soils. The iberulites can provide valuable information on environmental and paleoclimatic markers, as well as change models of radioactive transference in the atmosphere.
Scientists measure radionuclides in soil to understand sediment sources in rivers, revealing that streambank erosion contributes significantly to sediment loads. The study's findings can inform efforts to rehabilitate streams and preserve aquatic populations.
Researchers found that using nitrogen fertilizer on rye cover crops increased biomass output and made more nitrogen available to cotton. The study's findings suggest improving soil quality and nutrient management can enhance agricultural productivity.
Researchers are studying the effects of lunar dust on the respiratory system and developing technologies to clean it from space suits. The powdery grey dirt is formed by micrometeorite impacts that can wreak havoc on equipment, but its unique properties also make it susceptible to magnets.
The new book, Soil Science: Step-by-Step Field Analysis, offers clear guidance on improved soil management techniques. The soft-cover guide covers topics such as site evaluation, surveying techniques, and measuring soil pH, making it an essential resource for professionals in the field.
A CU-Boulder team discovered how microbial life becomes established and flourishes in extreme environments, with three species of cyanobacteria colonizing soil within the first year. The diversity of bacteria increased significantly over four years, snatching gaseous forms of carbon and nitrogen from the atmosphere.
A study by Indiana University researchers suggests treating contaminated urban soils with water can prevent chronic lead poisoning in children. The study reveals that older cities like Indianapolis have a high lead burden resulting in a lead poisoning epidemic among their youngest citizens.
Researchers found that multiple measurement techniques are needed to accurately measure calcium content in serpentine soils. A combination of X-ray diffraction, electron microscopy, and elemental analysis is necessary to identify and quantify calcium.
New research reveals that root systems can be observed using advanced imaging technologies like MRI, allowing for better understanding of water uptake patterns. Roots also play a significant role in soil carbon cycling and the global carbon balance.
Inwood Hill Park faces challenges preserving native species due to human impact and invasive species proliferation. A collaborative research approach can help understand plant losses and address causes, ensuring the survival of future plantings.
A new study by scientists from Brazil, France, and the US reveals that no-till management combined with winter cover crops is the most effective way to retain nutrients in tropical soils. The research found that this approach can maintain soil organic carbon stocks and mimic natural forested conditions.
Three studies demonstrate that soils in different regions respond similarly to management practices to increase soil carbon storage. Soil organic C increases with higher C input, but gains are often confined to labile fractions and larger aggregates.
A Montana State University microbiologist is studying how microbes living together interact to understand their potential use in energy production, climate change mitigation, and soil remediation. The research could lead to cheaper and more efficient methods for remediating contaminated sites.
Scientists investigated the effects of long-term biosolids application on dioxin accumulation in soil and uptake by plants. The study found that dioxins were not detected in corn grains but only trace levels were found in corn stover.
Research finds that dried distillers grains with solubles (DDGS) can reduce the need for hand-weeding by suppressing weeds in container-grown ornamentals. When applied to the soil surface, DDGS was found to be effective in controlling common chickweed and annual bluegrass without causing injury to plants.
The book offers a holistic approach to understanding nitrogen management, emphasizing accountability and nitrogen budgeting. The authors' broad perspectives address the nitrogen cycle's impact on climate change and soil fertility.
A new study by University of California, Berkeley researchers suggests that Mars had liquid water in its atmosphere during the Hesperian epoch, contrary to the dominant view. The analysis of Martian soil data reveals chemical signs of water moving downward through the dirt, indicating a climate with enough moisture for dew or rain.
A team of researchers led by UC Davis faculty member Benjamin Houlton has resolved a longstanding paradox in the plant world. They found that temperature and phosphorus abundance play key roles in determining the presence of nitrogen-fixing tree species in temperate and tropical forests.
A new study has provided genetic clues for dealing with soil pollution by using a systems toxicology approach to understand the impact of four soil contaminants on earthworm gene expression patterns. The research reveals subtle changes induced by toxic chemicals in earthworms, offering insights into monitoring and remediation of toxins.
A team of researchers has developed a range of sophisticated mathematical approaches to quantify soil variability across multiple scales. These methods include geostatistics, fractals, and multi-fractals, which can be applied to diverse data sets such as soil pore shapes, water content, and geochemical data.
The Mars rover Spirit has discovered Yellowstone-like hot spring deposits on Mars, suggesting a habitable environment where liquid water and energy were present. The silica deposits, formed by volcanic steam or hot water, may contain preserved traces of ancient Martian life.
A recent study found that no-till farming can increase soil organic carbon concentrations in the upper layers of some soils. However, the total soil organic carbon pool to a depth of 60 cm is often similar or even lower than plow tillage systems. The study highlights the importance of analyzing the entire soil profile for accurate conc...
Educators use candy to teach soil microbial diversity, resulting in increased student assessment scores and retained concepts. Students base characterizations on physical appearance of candies, exploring ways microorganisms can be defined.
The new monograph Methods of Soil Analysis. Part 5. Mineralogical Methods presents valuable methodologies for analyzing soil minerals, including atomic force microscopy and X-ray absorption spectroscopy. These methods have applications in soil classification, environmental remediation, and nutrient cycling.
Donald R. Nielsen, University of California-Davis professor, is recognized for his groundbreaking work in linking theory with field measurements and spatial variability of agricultural soils. He has guided 37 students through graduate degrees and authored over 300 scientific publications.
Charcoal-derived biochar improves soil fertility, increases crop biomass and enhances natural carbon sequestration abilities. This revolutionary farming technique holds promise as a carbon-negative strategy to combat hunger and global warming.
Researchers aim to create bespoke soils with added calcium silicates to capture carbon dioxide and form harmless mineral calcium carbonate. This could contribute 5-10% of the UK's carbon reduction targets in the future.
Researchers found that over one-third of tropical soil samples can generate severe limitations for landmine detection using metal detectors. The study provides a classification scheme for predicting detector performance and highlights the importance of considering soil development in de-mining missions.
Researchers have developed two nanotech-driven tools using soft lithography to study brain-behavior connections and screen new pharmaceuticals for parasitic infections in humans. The devices provide a near-natural environment for nematode movement, enabling the monitoring of individual fluorescent-injected neurons in real-time.
The Alliance for a Green Revolution in Africa announces a 5-year program to restore soil fertility, targeting 4.1 million farmers and 6.3 million hectares of land. The initiative aims to boost crop yields, raise farmer incomes, and protect natural resources.
A new global overview by Duke University soil scientist Daniel Richter emphasizes the need to address soil health due to increased cultivation, grazing, and logging. The study highlights the importance of long-term observation and analysis to understand how to sustain soils and minimize adverse effects on the environment.
A recent study found that soil erosion in northern Mexico is accelerating due to overgrazing, leading to the loss of fertile land and vegetation. The research team used a rainfall index type hydrological model to simulate soil moisture levels and runoff rates, revealing that areas with low rainfall are most prone to sheet erosion.
Researchers report that sustainable biomass production may be hindered by soil organic matter needs, suggesting a need for alternative crops and improved agricultural practices. The study highlights the importance of considering multiple factors beyond just soil erosion when evaluating feedstock supply.
Researchers discovered that carnivorous pitcher plants employ slimy secretions to capture prey, utilizing viscoelastic properties to ensnare insects. The fluid's unique constituency enables it to remain effective even in heavy rainfall conditions.
The new European loess map provides a comprehensive overview of fertile soils in Europe, covering around one-fifth of the continent. The map, created using modern digital information systems, links coordinates and factual information, offering valuable insights for agriculture, soil erosion, and climate history.
Researchers studying burrowing mammals, such as moles and mole rats, have discovered unique adaptations that enable them to dig efficiently in rocky soils. Convergent evolution plays a key role in the development of these specialized features, allowing these mammals to thrive in challenging environments.
Researchers found that trees in low-nitrogen soils produce more anthocyanins, which protect the leaves longer and allow for greater nutrient recovery. This study supports a hypothesis suggesting that trees produce red pigments to aid in survival during the winter months.
Floods of '93 and '95 devastated 70% of snake populations, with larger snakes and arboreal species faring better. Ecologist Owen Sexton proposes 'islands in the stream' to provide sanctuaries for displaced species during future floods.
The US Department of Homeland Security is working on a comprehensive project to identify technologies and procedures to rapidly assess and repair levees. The goal is to limit trouble when a levee breaches or prevent such breaks from happening again, using innovative designs, materials, and approaches. The project aims to develop soluti...