A5036344537- Soil and Water Nutrient Dynamics
- Phosphorus and nutrient management
- Heavy metals in environment
- Energy, Environment, Agriculture Analysis
- Environmental Conservation and Management
- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Mine drainage and remediation techniques
- Field-Flow Fractionation Techniques
- Iron oxide chemistry and applications
- Soil erosion and sediment transport
- Invertebrate Taxonomy and Ecology
- Geochemistry and Elemental Analysis
- Clay minerals and soil interactions
- Constructed Wetlands for Wastewater Treatment
- Plant Micronutrient Interactions and Effects
- Groundwater and Isotope Geochemistry
- Thermal Analysis in Power Transmission
- Plant Stress Responses and Tolerance
- Water Quality and Pollution Assessment
- Geochemistry and Geologic Mapping
- Pharmaceutical and Antibiotic Environmental Impacts
- Aquatic Ecosystems and Phytoplankton Dynamics
- Nanoparticles: synthesis and applications
- Forest Ecology and Biodiversity Studies
Wageningen University & Research
2015-2024
Soil Science Research Unit
2011
Energy Research Centre of the Netherlands
2010
Chinese Academy of Sciences
2008
Institute of Soil Science
2008
Quality Research
2005
University of Groningen
1998
Kema International (Netherlands)
1988-1989
University of Amsterdam
1979
Phosphorus (P) is an essential nutrient for crops and applied to agricultural soil bring or keep the at a certain target P status in view of optimal crop yield. Environmental objectives, however, are rarely considered current fertilizer recommendations. In this review paper, we argue that recommendations must be revised order balance yield, water quality use finite resources. This revision requires insights into total pool reversibly bound capacity bind P. Current tests (SPTs) used routine...
Mining soil phosphorus (i.e., harvesting P taken up from the by a crop grown without external addition) has been proposed as possible management strategy for P-enriched soils to decrease risk of leaching. We performed pot experiment in greenhouse where grass was cropped on noncalcareous sandy at zero application over period 978 d. determined long-term availability and evaluated effectiveness mining different pools. There were two treatments: layers pots either 5 or 10 cm thickness. Soils...
Long-term application of phosphorus (P) with animal manure in amounts exceeding removal crops leads to buildup P soil and increasing risk loss surface water eutrophication. In most manures, the majority is held within inorganic forms, but leachates organic forms often dominate. We investigated mobility both profile samples from a noncalcareous sandy treated for 11 yr excessive pig slurry, poultry manure, or mixed litter. Solution 31P nuclear magnetic resonance spectroscopy was used...
Abstract The impact of silver nanoparticles (AgNP; at 0 mg Ag/kg, 1.5 15.4 and 154 Ag/kg soil) nitrate (AgNO 3 ; on earthworms, Lumbricus rubellus , was assessed. A 4‐wk exposure to the highest AgNP treatment reduced growth reproduction compared with control. Silver ) also impaired reproduction, but not as much treatment. Long‐term caused complete juvenile mortality. All treatments induced tissue pathology. Population modeling demonstrated population rates for AgNO treatments, no because...
Colloids may facilitate the transport of trace elements and nutrients like phosphate in soil. In this study, we characterized soil colloids (<0.45 μm), extracted from four agricultural soils by Na-bicarbonate Na-pyrophosphate, two complementary analytical techniques; asymmetric flow field-flow fractionation (AF4) X-ray absorption spectroscopy (XAS). The combined results AF4 XAS show that colloidal Fe is present as (i) free Fe-(hydr)oxide nanoparticles, (ii) Fe-(hydr)oxides associated with...
Coastal and freshwater eutrophication continues to accelerate at sites around the world despite intense efforts control agricultural P loss using traditional conservation nutrient management strategies. To achieve required reductions in nonpoint over next decade, new tools will be needed address transfers from soils applied sources. Innovative remediation practices are being developed remove sources surface water groundwater sorbing materials (PSMs) derived natural, synthetic, industrial A...
Ion binding models such as the nonideal competitive adsorption−Donnan model (NICA−Donnan) and VI successfully describe laboratory data of proton metal to purified humic substances (HS). In this study performance was tested in more complex natural systems. The speciation predicted with NICA−Donnan associated uncertainty were compared independent measurements soil solution extracts, including free ion activity fulvic (FA) acid (HA) fractions dissolved organic matter (DOM). Potentially...
Phosphorus (P) immobilization has potential for reducing diffuse P losses from legacy soils to surface waters and regenerating low-nutrient ecosystems with a high plant species richness. Here, iron oxide sludge application was investigated in field trial on noncalcareous sandy soil. The applied is water treatment residual produced raw groundwater by Fe(II) oxidation. Siliceous ferrihydrite (Fh) the major Fe type sludge. reactive area assessed an adapted probe ion method 211-304 m2 g-1 oxides...
Assessment of the surface reactivity natural metal-(hydr)oxide nanoparticles is necessary for predicting ion adsorption phenomena in soils using complexation modeling. Here, we describe how equilibrium concentrations PO4, obtained with 0.5 M NaHCO3 extractions at different solution-to-soil ratios, can be interpreted a state-of-the-art model ferrihydrite to assess reactive area (RSA) agricultural top soils. Simultaneously, method reveals fraction reversibly adsorbed soil PO4 (R-PO4). The...
In areas under intensive livestock farming and with high application rates of animal manure, inorganic organic phosphorus (P) may be leached from soils. Since the contribution these P compounds to leaching differ, it is important determine speciation in We determined effect various fertilization regimes on NaOH-Na2EDTA (ethylenediaminetetraacetic acid) water extracts acidic sandy soil samples top 5 cm grassland wet chemical analysis 31P nuclear magnetic resonance (NMR) spectroscopy. These...
Soils in the Fuyang valley (Zhejiang province, southeast China) have been contaminated by heavy metals. Since rice (Oryza sativa L.) is dominant crop and because of its tendency to accumulate Cd grains, assessment human health risk resulting from consumption locally produced needed. In this study, we used a regression model predict average content grains for paddy fields. The multiple linear log(Cd) with log(HNO(3)-Cd), pH, log(clay), log(soil organic matter, SOM) as predictors performed...
High soil P contents in agricultural soils the Netherlands cause excessive losses of to surface waters. The reductions application rates present manure policy are not sufficient reach water quality standards resulting from European Water Framework Directive 2015. Accordingly, additional measures necessary reduce loading water. Greenhouse experiments showed that a rapid reduction soluble and readily available can be obtained by zero application. However, field data confirming these findings...