Abstract The winter fallow period common in annual cropping systems leaves soils vulnerable to erosion and nutrient loss, especially nitrogen (N) leaching. This vulnerability can be mitigated with perennial crops that have living roots the ground year‐round. mechanisms, magnitude, consistency which retain N are not clear. We used an experiment test whether a crop, miscanthus ( Miscanthus × giga...

The mineralization of urea fertilizer mostly regulates the nitrogen dynamics in soil. A laboratory-scale study was conducted to compare two tropical soil series incubated with either liquid (LU) or granular (GU) at 0, 300, 400 500 mg/kg soils samples used experiment were Bungor and Selangor which have a sandy clay loam texture, respectively. NH4+-N, NO3−-N concentration measured for four weeks ...

nitrification due to a high C/N ratio in litter (Vitousek et al., 1979), temporary sorption on ion exchange sites The mechanisms by which forest ecosystems retain or lose soluble (Vitousek et al., 1979) and in the case of P, fixation or inorganic nutrients after disturbance are well known, but substantial amounts of soluble organic nutrients may also be released from cut sorption on soil (Wood ...

Abstract Microplastic contamination, like other global change factors, can induce effects on ecosystem functions and processes, affecting various soil biophysical properties. However, of such contaminants nutrient cycles in agroecosystems are still poorly understood. We here performed two pot experiments to investigate the effect polyester microplastic fibers (PMFs) physical properties, nitroge...

Although macropore flow is recognized as an important process for the transport of pesticides through a wide range of soils, none of the existing spatially distributed methods for assessing the risk of pesticide leaching to groundwater account for this phenomenon. The present paper presents a spatially distributed modelling system for predicting pesticide losses to groundwater through micro- an...

Future climatic changes may have profound impacts on cropping systems and affect the agronomic and environmental sustainability of current N management practices. The objectives of this work were to i) evaluate the ability of the SALUS crop model to reproduce experimental crop yield and soil nitrate dynamics results under different N fertilizer treatments in a farmer's field, ii) use the SALUS ...

Digestate, a by-product of biogas production, is widely recognized as promising renewable nitrogen (N) source with high potential to replace synthetic fertilizers. Yet, inefficient digestate use can lead pollutant N losses ammonia (NH3) volatilization, nitrous oxide (N2O) emissions and nitrate (NO3-) leaching. Cover crops may reduce some these recycle the back into soil after incorporation, but...

Overland flow from cropland areas often contains nutrients and residue materials can either contribute to runoff nutrient load through leaching or remove nutrients by sorption. Measurements were made of leaching and sorption of nitrogen and phosphorus from corn (Zea mays L.), soybean (Glycine max (L.) Merr.) and winter wheat (Triticum aestivum L. cv. Pastiche) residues placed in solutions conta...

The quaternary aquifer of Vitoria-Gasteiz (Basque Country, Northern Spain) is characterised by a shallow water table mainly fed by drainage water, and thus constitutes a vulnerable zone in regards to nitrate pollution. Field studies were performed with a potato crop in 1993 and a sugar beet crop in 2002 to evaluate their impact on nitrate leaching. The overall predictive quality of the STICS so...