A study analyzed five long-term experiments to predict effects of no tillage management on soil organic carbon. Harvesting substantial crop residues without added carbon would deplete soil organic carbon and increase pollution risks.
New phosphate-free automatic dishwashing detergents are being developed to combat water pollution, but they may not be as effective as previously thought. Researchers are working on alternative formulas that can clean dishes without contributing to environmental harm.
Researchers at the University of Missouri have found a new farming method that significantly reduces greenhouse gas emissions while increasing corn grain production. The method, called strip tillage, involves tilling fields in strips and applying fertilizer in bands, resulting in lower nitrous oxide emissions and higher yields.
A marine bacterium uses a biochemical trick to recycle iron, conserving precious metal for photosynthesis and nitrogen production. This strategy, called 'hot bunking,' allows the organism to thrive in iron-poor waters, increasing ocean productivity.
A recent study found that the implementation of federal regulations on treating sewage has significantly lowered pathogen levels in biosolids. The study analyzed data from 18 wastewater treatment plants and found that pathogens have dropped by 94-99% since 1993.
A new study found that grafting melon plants onto commercial rootstocks significantly improves nitrogen use efficiency, reducing the need for nitrate-rich fertilizer. This approach allows growers to maintain high crop yields while minimizing environmental impacts.
Researchers found that high-nitrogen fertilizers can accelerate establishment of areca palm and Chinese hibiscus, but also induce magnesium deficiency. A balanced approach with moderate nitrogen levels is recommended for optimal plant quality.
Researchers at Oregon State University have sequenced the genome of a wild strawberry, identifying genes that could lead to improved crops. The study's findings may result in fruits with enhanced flavor, aroma, nutritional value, and resistance to disease.
A Michigan State University study found that rivers and streams are a significant source of nitrous oxide, a potent greenhouse gas, contributing twice as much as previously estimated. The increased production can be linked to nitrogen fertilizers and crop cultivation, highlighting the need for reduced agricultural fertilizer use.
Researchers at the University of Notre Dame discovered that streams and rivers are a significant source of nitrous oxide emission, a potent greenhouse gas. The study found that human activities such as fertilizer use and sewage discharges increase nitrogen levels in waterways, leading to higher nitrous oxide production rates.
Scientists analyzed studies on estrogen in drinking water and found most estrogens come from natural sources such as soy, dairy, and animal waste, not birth control pills. Researchers concluded that the pill accounts for less than 1% of estrogens in drinking water supplies.
Iron deficient soils in the North Central United States reduce soybean production by 12.5 million bushels annually. Researchers found that adding nitrogen fertilizer can exacerbate iron deficiency in low-efficient varieties, whereas efficient varieties are less affected.
Researchers from TUM are studying the development of soil, flora, and fauna at Chicken Creek, aiming to establish factors influencing ecosystem development. The project has shown that rain plays a crucial role in shaping the initial phase of an ecosystem.
Researchers will sample over 250 sites in southeastern New Hampshire and Maine's tributaries to pinpoint high nitrate concentration sources. The goal is to develop effective management strategies targeting nitrogen reduction in Great Bay.
A new study by the University of Maryland suggests that rewarding eco-friendly farmers with financial incentives can help reduce fertilizer run-off and capture carbon dioxide, both contributing to combating climate change. By setting up a 'nutrient trading market,' farmers can earn credits for using best practices, which can then be so...
A USGS study reveals that growing corn for biofuels production has significant effects on water quality and quantity in northwestern Mississippi. Increased irrigation withdrawals from the MRVA aquifer contribute to declining water levels, while nitrogen fertilizer use can lead to low dissolved oxygen conditions in the Gulf of Mexico.
A Michigan State University study suggests that rotating corn with shrubby legume mixtures, such as pigeonpea, can increase nutrient-enriched grain productivity. This approach has the potential to enhance food and environmental security in Africa by reducing reliance on starchy cereals and expensive fertilizers.
The University of New Hampshire will lead a $700,000 study on greenhouse gas emissions at traditional and organic dairy farms. The three-year project aims to improve the competitiveness of organic livestock and crop producers by developing extension programs and decision-support tools.
The World Agroforestry Centre calls for a radical transformation in agriculture to address climate change, food security, and sustainability. Evergreen Agriculture promotes sustainable crop yields, carbon storage, and income generation through fertilizer trees integrated into farming systems.
Researchers in Bangladesh have developed a biofilter that can extract toxic ammonia from vented gases using microbes and wood charcoal. The biofilter achieved approximately 93% removal of ammonia gas within seven days.
Researchers found that coffee husks can adsorb almost 50 milligrams of hexavalent chromium per gram, with two-thirds of the absorbed chromium recoverable. The use of coffee husks presents a viable and cost-effective part of a waste-management strategy due to their availability, safety in storage, and lack of protein.
A new study reveals that human activities are overloading ecosystems with nitrogen, leading to ecological damage and pollution. Sustainable practices such as crop rotations, optimized fertilizer use, and traditional breeding techniques can help reduce this damage.
Researchers found that adding phosphorus and nitrogen fertilizer can speed up the biodegradation of oil in contaminated soil. The study suggests a treatment scheme involving nitrate salts to stimulate rapid biodegradation by increasing sediment porosity and oxygen availability.
A recent study reveals that tile drainage in the Mississippi Basin is a significant source of nitrate pollution, particularly in the highly productive cornbelt region. Farmers are not blamed for this issue, as they are using the same amount of nitrogen since 1993 and achieving higher yields.
Research found that chronic stress increases cancer spread by 30-fold in stressed mice compared to unstressed controls. Stress alters the biology of immune cells, promoting metastasis to distant organs. Beta blockers blocked this effect, suggesting potential prevention strategies.
Researchers found that fertilizing soils with biosolids introduces triclosan into the environment, with levels averaging 15.5 milligrams per kilogram in treated biosolids. Biological degradation of triclosans resulted in significant loss after 7-9 months, with up to 96% removal after 16 months.
The book provides a historical overview of the American Society of Agronomy's role in shaping global agricultural practices. It also delves into future trends and challenges, including changing diets, biofuels, and under-investment in research, to ensure a sustainable food system for the coming century.
The American Society of Agronomy announces award recipients for their exceptional work in education, national and international service, and research. The awards honor individuals who have made significant contributions to the field of agronomy.
A University of Arizona-led consortium aims to create next-generation varities of rice that can withstand drought and poorer soils. The project will study the genes of wild rice species and identify those that could improve crop yields, providing a 'toolkit of genes' for enhanced food security.
New research from North Carolina State University reveals that fertilizer chemicals can be converted into toxic nitric oxide by water fleas, causing developmental and reproductive problems. The study's findings raise concerns about the impact of these chemicals on other organisms and highlight the need for further research.
The USDA is developing a web-based fertilizer forecast tool to predict field runoff occurrence and enhance water quality. The tool uses National Weather Service data to analyze precipitation, soil moisture, and other factors.
Researchers found that fields amended with poultry litter can accumulate significant levels of arsenic, which can then migrate into nearby streams and rivers. The study highlights the importance of controlling point sources of arsenic and suggests management practices to protect local regions from agricultural pollutants.
The Farming Systems Greenhouse Gas Emissions Calculator helps farmers maximize their potential economic returns in greenhouse gas markets. By changing farming practices, users can reduce greenhouse gas losses and gain an economic advantage.
A University of Michigan biologist and a colleague at the University of California, Berkeley, found that shade-grown coffee farms support native bees that pollinate native trees and enhance genetic diversity. The study suggests that these bees play a crucial role in maintaining biodiversity in tropical regions.
A study compiled field studies across the US to identify influences on biomass yield of switchgrass. Lowland and upland switchgrass types showed varying yields, with annual averages of 12.9 metric tons per hectare for lowland and 8.7 metric tons for upland ecotypes.
Dr. Seong Park's research found that manure provides higher economic returns than chemical fertilizers due to its multiple essential crop nutrients and lower costs. The study showed that swine effluent was the most cost-effective option, with breakeven prices lower than anhydrous ammonia.
A team of scientists from the University of Missouri reviewed EPA greenhouse gas emission estimates for agricultural anaerobic lagoons, finding errors and potential underestimates by up to 65%. The study suggests that some manure storage facilities may exceed current reporting requirements.
Researchers predict perennial grain crops could be available in two decades, offering a sustainable solution to feed the world's growing population. These crops have longer growing seasons, deeper roots, and require fewer herbicides and equipment passes, reducing erosion and sequestering carbon.
Agricultural Research Service study finds chicken litter has a value of about $78 a ton, compared to traditional synthetic fertilizers, resulting in 12% higher cotton yields and increased farmer profits. The research also shows farmers can further increase profits by using less fertilizer.
A two-year field study found that compost filter socks reduced sediment concentration by 49% in runoff from tilled fields, but had no effect on no-till fields. The filter socks also decreased herbicide alachlor and glyphosate concentrations by 18% and 5%, respectively.
A study by US Department of Agriculture researchers found that only 20-35% of nitrogen fed to dairy cows is converted into milk, with 16-77% necessary for grass and other pasture plants. The research provides tools to improve nitrogen use efficiency, promoting better practices for farmers and reducing environmental impact.
A new model has estimated that large amounts of organic nitrogen are stored in the soil beneath fields in Nebraska and Maryland, where corn and soybean crops are grown. The study found that leaching accounted for most of the nitrogen lost from the soil, particularly in irrigated areas.
Low-external-input cropping systems reduce energy and yield impacts compared to conventional corn and soybean rotation. Manure application decreases fossil fuel energy costs without significantly increasing labor inputs.
A University of Colorado at Boulder study found a tight link between nitrogen and carbon in the environment, which may help address regional pollution issues. The research suggests that microbial communities in ecosystems regulate this relationship, with nitrates decreasing in areas with sufficient organic carbon.
Agricultural Research Service scientists discover that sugarcane can tolerate standing water for up to two weeks without adverse effects on yield or sugar content. This finding provides relief for growers under strict regulations to reduce phosphorus runoff into the Everglades.
People in seven European countries show positive attitudes toward NoMix toilets, which separate urine from feces to reduce pollution and conserve resources. The innovative technology is well-accepted, with 80% of users expressing support and many willing to use it at work or home.
Scientists are working with breeders and the food industry to create high-quality pea varieties that can reduce nitrogen fertilizer use, thereby cutting carbon emissions. The goal is to increase the uptake of legume farming and improve profit margins for farmers.
Researchers are exploring the use of synthetic biology to enable corn plants to fix their own nitrogen, eliminating the need for fertilizers. This technology has the potential to increase crop yields while reducing environmental degradation and promoting sustainable agriculture.
A low-cost water purification technique using Moringa oleifera seeds can reduce bacterial contamination by 90-99.99% in untreated water. This technique has the potential to improve access to clean drinking water for millions of people in developing countries.
Researchers at Stanford University have discovered a new biological process in legumes that enables them to fix nitrogen from the air, reducing the need for chemical fertilizers. This breakthrough has the potential to make agriculture more sustainable and aid efforts to mitigate climate change.
Researchers at UCLA found a biochemical link between misery and death, as well as a genetic variation that blocks this link. They discovered that individuals with the rare IL6 gene variant were less susceptible to death due to inflammation-related mortality causes under adverse social-environmental conditions.
Researchers have found that shallow-rooted bean plants can thrive in poor soil conditions, improving crop production by 600% and decreasing erosion. Shallow-rooted soybeans are also being developed for low-phosphorus soils, while efforts are underway to improve nitrogen efficiency in corn.
A UCI study found that urban 'green' spaces, including lawns, can emit more greenhouse gases than they absorb through photosynthesis and soil storage. Turfgrass management practices like fertilizer use, mowing, and leaf blowing contribute to significant emissions.
The US Department of Agriculture's National Agricultural Statistics Service has released new geospatial data products, including satellite images of agricultural land cover across most of the nation. These cropland data layers can be used to monitor crop rotation patterns, land use changes, and water resources.
Research found that Pacific dunlins have lost weight and spend more time flying to escape peregrine falcons, a response to the increased threat of predation. The dunlins' adaptations help them survive harsh winters with reduced risk of starvation.
A UCI study found that urban green spaces, particularly lawns, can actually contribute to global warming through greenhouse gas emissions from fertilizer production, mowing, and other maintenance practices. The study suggests that these emissions outweigh the carbon sequestration benefits of lawns.
Researchers found that organic fertilizer had a neutral or negative effect on plant growth, while mineral fertilizer showed mixed results. Dune grass performed well with the addition of fertilizer, but beach pea was negatively impacted. ATVs continue to be a major obstacle to revegetation efforts in the area.
Scientists have developed a way to modify nanoparticles in sewage treatment plants, potentially closing off the gateway for environmental spread. Uncoated nanoparticles remain in effluent streams, while coated ones aggregate into solid residue.
A recent study by the American Society for Horticultural Science found that vermicompost derived from pig manure can produce healthy hibiscus plants. The treatment resulted in improved plant growth and flower production, with an average increase of 58% in plant dry weight and 93% more flowers compared to conventional nursery crop inputs.
A USDOE and USDA study found switchgrass to produce more dry biomass per dollar cost than the other three species, making it the optimal choice for a field. The study recommends fertilizing with 60 pounds of nitrogen per acre per year and harvesting once per year after senescence.