Articles tagged with Fertilizers
A team has introduced a controlled delivery system for micronutrients based on biohybrid microgels. The system adheres selectively to leaves and slowly releases nutrients, minimizing environmental problems and plant damage.
Researchers have invented a 'bionic' leaf that uses bacteria, sunlight, water and air to produce fertilizer in the soil where crops are grown. The system produces biomass and liquid fuel yields that greatly exceeded natural photosynthesis.
A global study found steadily increasing ammonia concentrations from 2002 to 2016 over four major agricultural regions. The increases are broadly tied to crop fertilizers, livestock animal wastes, changes to atmospheric chemistry, and warming soils.
Researchers develop simple method for coating nanoparticles with urea molecules to slow breakdown and release nitrogen. Initial field tests show promising results in reducing fertilizer need by half.
A new MSU study found significant yield gaps between alternative agricultural practices in small experimental plots and commercial fields. The research highlights the challenges of scaling up low-input and organic farming methods to achieve similar yields as conventional practices.
A study by University of Michigan researchers found that growing multiple algal species helps stabilize biocrude production and makes the system more reliable. However, competition among species often causes mixtures to produce less biocrude than individual species.
Researchers developed a crop model to predict optimal nitrogen fertilizer rates for corn, improving accuracy and reducing losses. The model can assist with nitrogen management and mitigate environmental concerns.
Researchers at Cornell University discovered a biological mechanism that converts nitrogen-based fertilizer into nitrous oxide, increasing atmospheric levels by 120%. The enzyme cytochrome P460 produced in ammonia-oxidizing bacteria leads to nitrous oxide production as a chemical coping strategy.
A new study by University of Minnesota researcher Daniel Kaiser found that in-furrow starter fertilizer application has limited economic benefits for corn farmers in areas with cool spring temperatures. The practice, which aims to boost early-season growth, may not outweigh the costs of the fertilizer itself.
A new study finds that salt marshes do not respond significantly to fertilization with excess nitrogen. This challenges the long-held assumption that these coastal resources can soak up excess nutrients through enhanced plant growth, preventing low-oxygen dead zones and harmful algal blooms.
A 12-year field experiment in Nova Scotia found optimal fertilizer rates of 35 kg·ha-1 N, 40 kg·ha-1 P, and 30 kg·ha-1 K to maximize floral bud number, berries per stem, and berry yield. Higher fertilizers rates increased net profits by $490/ha.
A study published in Frontiers in Nutrition found that adopting a plant-based diet can significantly decrease the environmental impact and phosphorus footprint, with a potential reduction of 72% in phosphorus fertilizer requirements. This change has a moderate effect on reducing phosphorus excreted by the environment.
Researchers at USDA-Agricultural Research Service found that using less chicken litter than needed for maximum crop yields can increase farmer profits. The study aimed to calculate the optimal amount of chicken litter for cotton crops to balance yield and profitability.
Researchers found that transplanting fertilizers with phosphorus and using non-reflective plastic mulches can significantly boost tomato yields in clay loam soils. The study's results support the use of these practices for local gardeners and commercial growers in Minnesota, particularly during short growing seasons.
Experts warn of severe threats to ecosystems due to nitrogen deposition from fertilizer use and sewage. A global network is needed to monitor and address this issue in Latin America and BRICS nations, which are the largest users of nitrogen fertilizer.
Researchers at Aarhus University have developed an alternative fertilizing source for organic farming, allowing farmers to harvest mobile green manure repeatedly without affecting crop yields. The method has the potential to improve fertilizer quality and reduce the need for conventional animal manure in the future.
Thermally conditioned sewage sludge serves as an excellent fertilizer improving soil properties and reducing phosphorus waste. The nutrient-rich sludge stimulates microbial activity, inducing competition between microorganisms and plant roots for phosphorus uptake.
Climate change contributes to severe algal blooms in the Chesapeake Bay through increased precipitation variability. Nitrogen-rich agricultural runoff, exacerbated by changing weather patterns, leads to toxic algae growth and hypoxia, harming humans, marine life, and fisheries.
A new U of T Scarborough study identified rice varieties that can reduce nitrogen waste and minimize environmental pollution. The research found that certain chemicals produced by the roots of these crops can significantly reduce nitrogen capture inefficiencies in soil microbes.
Engineers developed a numerical model to calculate nitrogen's age in corn and soybean fields, potentially improving fertilizer application techniques. The research found that nitrogen topsoil has a relatively high average age compared to water, with ammonium accumulating in the upper layers.
A new study recommends using residual fertilizer to give plants staying power and add value for consumers. Controlled-release fertilizers proved to be more effective in maintaining plant performance beyond the production phase.
Research reveals that nitrogen-rich fertilizers and animal waste combine with combustion emissions to form solid particles causing disease and death. The good news is that declining combustion emissions may reduce fine-particle pollution even if fertilizer use doubles.
Farmers' use of nitrogen-rich fertilizers and animal waste contributes to the formation of tiny solid particles, or aerosols, causing heart disease and death. However, projections suggest that reduced industrial emissions could decrease aerosol production if fertilizer use doubles.
A new study from the University of Illinois reports a 10% reduction in nitrate load in the Illinois River from 2010 to 2014, compared to the 1980s and early 1990s. The reduction is linked to improved fertilizer management and higher corn yields, resulting in less nitrogen left in the soil and washed into the river.
Intensifying tropical agriculture may sequester up to 1-4 million metric tons of phosphorus fertilizer annually, forcing farmers to pay a recurring 'P-tax'. Recycling phosphorus-rich livestock manure and rethinking high-meat diets could mitigate this issue.
A new study warns that intensive farming in tropical regions may require vast amounts of phosphorus fertilizer, which is a limited natural resource. The researchers estimate that if global demand for food continues to rise, the phosphorus tax imposed by these soils could double by 2050.
The study identifies a key region in the genome where selection has changed the behavior of rhizobia, making them less beneficial to plants exposed to nitrogen fertilizer. This finding has significant implications for finding sustainable solutions to address environmental concerns.
A new study assesses the impact of Rutgers University's Organic Land Care Certificate Program on landscaper attitudes and practices. Survey results show significant reductions in synthetic fertilizer use and pesticide application, with a focus on holistic landscape management.
Researchers found that substituting up to 100% of peatmoss with pecan wood chips in greenhouse substrates reduces leaching fractions and increases substrate pH, while also providing a positive opportunity for using the product.
A new study by UC Santa Barbara researchers finds that excess nutrient input leads to imbalances in mutualistic species interactions. This can have far-reaching implications for ecosystems, including decreased growth of fungal partners and increased growth of plant partners.
Researchers found that modern corn hybrids maintain per-plant yield in environments with low nitrogen, can recover from mid-season stress, and take up nitrogen after silking. This suggests reserving a portion of nitrogen fertilizer for later application could be beneficial for growers.
Researchers found that CRP biomass yield can reach up to 6.4 metric tons per hectare, but economic analyses show that costs of fertilizer application may outweigh benefits. Implementing a system where land owners harvest one-third of their acreage per year could reduce government costs by $31 million annually.
The Danforth Center is collaborating with the University of Illinois to identify genetic variants impacting photosynthesis and nitrogen uptake in maize. This project aims to improve crop yields while reducing fertilizer usage, offering economic and environmental benefits.
A recent study found that faba beans can increase soil nitrogen and carbon levels, providing long-term benefits for farmers. The research suggests that growers should adjust their fertilizer recommendations to account for the slow-release nitrogen in pulse crops.
A study suggests that increasing nitrogen use efficiency globally can improve crop yields while reducing nitrous oxide emissions and other forms of nitrogen pollution. Researchers propose specific targets for different regions to achieve a global average nitrogen use efficiency of 70% by 2050.
Yale University scientists have designed a new chemical compound that mimics the properties of nitrogenase, an enzyme responsible for natural nitrogen fixation. The findings could lead to the development of synthetic catalysts that turn nitrogen into ammonia, reducing transportation and production costs.
Scientists at Brigham Young University have made a breakthrough in reducing ocean dead zones by studying the potential of rhizobia, a type of beneficial bacteria. By understanding how these bacteria interact with plants, researchers aim to develop more sustainable farming practices that minimize fertilizer use and reduce water pollution.
A team of MSU researchers, led by Sarah Evans, will study how plants interact with microbes to obtain nitrogen in abandoned farmlands. The goal is to maximize biofuel yields while minimizing fertilizer use and preserving soil health.
A 30-year study found Northern China's soil moisture decreased by 6% since 1983, with optimal levels now below 40%. The researchers attribute this decline to increased fertilizer use and crop types with high water demands, posing a risk to agriculture and the fresh water supply.
A study found that controlled-release fertilizers can reduce the environmental impact of landscape palms by limiting nitrogen and phosphate application. Areca palms, in particular, showed growth comparable to traditional fertilization methods when using a 0-0-16 fertilizer formulation.
The world's soil resources are under threat from erosion, nutrient exhaustion, urbanization, and climate change, which could lead to disruptions in food production and geopolitical conflicts. Experts call for better management of Earth's soils to address this issue.
Recent research showed that replacing chemical fertilizer with organic manure significantly decreased greenhouse gas emissions. Organic farming improved crop yields while reversing the agriculture ecosystem's role as a carbon source, becoming a carbon sink.
Experiments show that living mulch can reduce broccoli yields, with reduced effects when organic fertilizer is added.
Researchers found that liquid corn and fish fertilizers are good options for organic blackberry production, meeting plant nutrient needs except for calcium and boron. The fertilizers were effective in delivering nutrients through the drip system, but regular flushing was recommended to prevent emitter clogging.
Researchers at Western Michigan University are working on a multi-pronged nutrient bio-remediation system to clean up algal blooms in waterways. The algae can be used as a feedstock for biofuels, while the waste is high in nutrients and carbohydrates, suitable for recycling back into farm fields as organic fertilizer.
A study published in HortScience found that hydrolyzed fish fertilizer is an economically feasible nitrogen source for growing organic vegetables, even when yields are reduced. The authors concluded that the premium price and resultant profit associated with organic products can offset the yield reductions.
MSU researchers are using big data analytics to help farmers adapt to climate variability, reducing nitrous oxide emissions and algal blooms. The project aims to integrate crop models with satellite imagery and UAVs to promote water-, nutrient- and climate-smart technologies.
A new study recommends CRF placement methods that can reduce fertilizer and irrigation expenses and minimize nutrient leaching into the environment. The dibbled method has potential to produce the greatest quantity of leachable nutrients, while also conserving expensive fertilizer resources.
Researchers propose combining 'fertigation' and decentralized water treatment with drip irrigation to create 'tailored' water containing high levels of nitrate. This approach aims to reduce waste and increase efficiency in lawn care, but further study is needed to address potential challenges.
Agriculture accounts for 80% of human-caused nitrous oxide emissions, which rise faster than expected when fertilizer rates exceed crop needs. Applying more precise amounts of nitrogen-based fertilizer can help combat climate change by reducing greenhouse gas emissions.
The report suggests that reducing global beef consumption, reducing food waste, and improving farm nutrient management can deliver big climate wins while maintaining food security. Implementing these strategies could cut over three gigatonnes of carbon dioxide per year.
A study published in the Journal of the American Society for Horticultural Science found that fertilizer N applied during the reproductive stage is a significant N source for inflorescence development in Phalaenopsis. Research also showed that providing ample nitrogen fertilization at all growth stages is essential for optimal flowering.
Agroforestry is key to increasing food production in Africa by replenishing soils, improving biodiversity, and conserving natural resources. By adopting sustainable agricultural intensification techniques, farmers can meet the growing population's needs without degrading the environment.
Crop intensification through agroforestry can improve soil fertility, biodiversity, and water quality, increasing food production in Africa. By reducing reliance on chemical fertilizers, farmers can maintain nutrient cycling, organic matter build-up, and ecosystem resilience.
A new national study found that urban lawn care practices vary significantly across cities, despite uniformity in appearance. The research suggests that local climate and social factors play a more significant role than initially expected, requiring tailored solutions to address environmental challenges. Understanding these patterns is...
A worldwide study found that grazing animals can improve biodiversity in over-fertilized grasslands by allowing native plants to compete for sunlight. The study, which analyzed data from 40 sites across six continents, suggests that the removal of fertilizer and introduction of grazing animals can lead to increased plant diversity.
Researchers found that smallholder farmers' investment in microdosing led to improved productivity, with a 30-35% increase in adoption rates after training. Microdosing uses fertilizer more efficiently and has unlocked the power of chemical fertilizers in low-rainfall areas.
A three-year study across five continents found that fertilizer increases grass production but reduces stability, leading to wilder swings in forage availability. This results in fewer species thriving, reducing the overall diversity of grasslands.
A new screening technique assesses environmental and agricultural effects of treated waste used as fertilizer. Researchers found high concentrations of triclosan and three other antimicrobial compounds in biosolids, posing potential ecological threats.
A study published in Global Change Biology found that a growing yield gap in Africa is largely caused by the underuse of phosphorus-based fertilizers. Increasing nitrogen applications could help close this gap, but at a significant cost due to limited phosphorus reserves.