A5034017822- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Soil and Unsaturated Flow
- Composting and Vermicomposting Techniques
- Phosphorus and nutrient management
- Peatlands and Wetlands Ecology
- Coal and Its By-products
- Thermochemical Biomass Conversion Processes
- Plant Micronutrient Interactions and Effects
- Heavy metals in environment
- Soil Geostatistics and Mapping
- Selenium in Biological Systems
- Vibration and Dynamic Analysis
- Clay minerals and soil interactions
- Coal Combustion and Slurry Processing
- Soil Mechanics and Vehicle Dynamics
- Agriculture, Soil, Plant Science
- Landfill Environmental Impact Studies
- Hydraulic and Pneumatic Systems
- Plant nutrient uptake and metabolism
- Blood properties and coagulation
- Climate change and permafrost
- Constructed Wetlands for Wastewater Treatment
- Cardiovascular Health and Disease Prevention
- Pesticide and Herbicide Environmental Studies
Tieto (Finland)
2016-2024
Natural Resources Institute Finland
2015-2024
Agrifood Research Finland
2010-2015
University of Helsinki
1976-2013
Finnish Defence Forces
1985-1987
Helsinki Institute of Physics
1983
University of Oulu
1972
Land degradation reduces agricultural productivity and poses a serious threat on food security status of households. In Ethiopia, farmers have been using only urea di-ammonium phosphate for more than 15 years. Several reports that indicate lack response to these fertilizers, which could be due limitation nutrients other nitrogen phosphorus. Therefore, the present study was initiated evaluate soil fertility ten sites in central highlands Vertisols Ethiopia wheat nutrient content. The...
One-fourth of the global soil organic carbon (SOC) is stored in boreal region, where climate change predicted to be faster than average. Planetary warming accelerated if promotes SOC release into atmosphere as dioxide. However, carbon-climate feedbacks have been poorly confirmed by measurements despite their importance on climate. In this study, we used data collected part Finnish arable monitoring program study influence change, management practices, and historical land use changes content...
Sequestering carbon into agricultural soils is considered as a means of mitigating climate change.We used agronomic soil test results representing c. 95% the farmed land area in Finland to estimate potential uppermost 15 cm layer mineral sequester organic (OC) and contribute mitigation change.The estimation maximum capacity matter protect OC stable mineral-associated form was based on theory that clay fine-sized (fines = + silt) particles have limited OC.In addition, we clay/OC fines/OC...
Abstract To achieve appropriate yield levels, inherent nitrogen (N) supply and biological N fixation are often complemented by fertilization. avoid economic losses negative environmental impacts due to over‐application of fertilizer, estimation the is critical. We aimed identify roles soil texture organic matter in mineralization levels attained cereal cultivation with or without fertilization boreal mineral soils. First, net respiration were measured laboratory incubation samples varying...
Abstract High expectations to harness agricultural soils as sinks for atmospheric carbon (C) necessitate methods verifying changes in soil organic C (SOC) stocks and improving the accuracy of regional SOC stock estimates specific various land‐use management types. In this study we used a sample set included Finnish national monitoring network (n = 125) determine its vertical distribution mineral using fixed depth (FD) equivalent mass (ESM) methods. Further, explored within‐field variation...
Abstract Understanding of factors governing soil structural features is necessary for managing key processes affecting crop productivity and environmental impacts agriculture, example, water balance, aeration, root penetration. Organic matter known to act as a major binding agent in aggregation thus constitutes central pillar structure formation. However, knowledge the role organic or carbon (OC) soils highly rich clay‐sized particles (<0.002 mm) limited. In this study, effects clay OC...
Activated carbons (AC) serve as adsorbents in various applications requiring specific functionalities. In this study, the effects of biomass type, pre-carbonization process, and activation method on properties ACs were investigated. Chemical (KOH H3PO4) physical (CO2) activations performed slow pyrolyzed hydrothermally carbonized (HTC) biochars produced from two feedstocks, willow Scots pine bark (SPB). addition, adsorption capacities tested with dyes zinc metal. Distinct differences found...
Short-term agronomic and environmental benefits are fundamental factors in encouraging farmers to use biochar on a broad scale. The short-term impacts of forest residue (BC) the productivity carbon (C) storage arable boreal clay soil were studied field experiment. In addition, rain simulations aggregate stability tests carried out investigate potential BC reduce nutrient export surface waters. A addition 30 t ha−1 increased test phosphorus decreased bulk density but did not significantly...
Large volumes of pesticides are applied every year to support agricultural production. The intensive use affects soil quality and health, but surveys on pesticide residues scarce, especially for northern Europe. We investigated the occurrence 198 residues, including both banned currently used substances in 148 field sites Finland. Results highlight that common soils A least one residue was found 82% soils, those 32% contained five or more residues. Maximum total concentration among...
Increasing the efficiency of phosphorus (P) use through nutrient circularity is essential for securing P sufficiency and reducing pollution. The release in recycled materials can be enhanced with organic acids produced from cellulose. In this study, fertilisers based on sewage sludge (SS) poultry manure (BR) were treated increasing levels (0%, 8%, 20%) hydroxy carboxylic acid mixture to determine effect acidification availability other selected elements. According sequential extractions,...
This study compared the effects of using bio-based fertilisers (BBFs) high (BBFH) or low (BBFL) metal content with conventional mineral superphosphate (SP) fertilisation on dietary exposure arsenic (As), cadmium (Cd), nickel (Ni) and lead (Pb), in Finland, Denmark, France, Germany, Hungary, Spain. We estimated changes following crops: wheat, barley, oat, rye, potato, carrot, sunflower seed, maize 100-year scenarios fertilization different products. To estimate chronic to metals via food, we...
Soil conditioning aims at improving the physical, chemical and biological properties of soils thereby serves as one measure to enhance crop productivity reduce water quality impacts arable fields. In this study, we consider effects three soil amendments (gypsum, structure lime, pulp paper mill sludges) on development. The positive these erosion reduction have been observed in previous studies but detection their pore has turned out be challenging. Here studied structural development packed...
Manure constitutes a nutrient resource that should be efficiently recycled in agriculture. We assessed the cycling properties of three bedding materials (peat, wood shavings and pelleted straw) horse manure by comparing their compostability, ability to retain nitrogen (N) phosphorus (P) under rainfall capacity release N when mixed with soil. straw had superior composting characteristics as it lost half its dry mass, reached temperatures >60 °C ended up having carbon (C) (C:N) ratio...
Pyrolysis is an option for enhancing the sustainable management of broiler manure surpluses by producing a concentrated, hygienic char product with fertilizer and soil conditioner value. In this study, impacts pyrolysis conducted at 350, 400 450 °C on total nutrient harmful element concentrations in biochars derived from peat-bedded were examined. Emphasis was placed availability phosphorus (P). addition, pore structures these explored using X-ray microtomography image analysis. During...
Mineral composition is a fundamental feature that affects the properties and functions of soil through physical, chemical biological interactions. However, comprehensive knowledge on mineralogy agricultural topsoils Finland has been lacking. In this study, mineral 120 samples included in national monitoring soils was determined using state-of-the-art quantitative x-ray diffraction analysis by prior measured full pattern fitting methodology. Quartz, plagioclase K-feldspar were found to be...