Spring applied phosphorus loss with cover crops in no-till terraced field.

Cover crops (CC) can improve phosphorus (P) cycling by reducing water related P losses and contributing to P nutrition of a rotational crop. This is particularly important in claypan soils with freeze-thaw cycles in early spring in the Midwest U.S.

Parent psychosocial adjustment to inpatient pediatric rehabilitation, and the role of uncertainty and self-care.

Purpose/objective: The stressors experienced by parents of children admitted for inpatient rehabilitation likely place parents at high risk for poor psychosocial adjustment; however, no research to date has described parent adjustment during the acute phase of a child's inpatient rehabilitation hospitalization. The present study evaluates parent adjustment processes through the lens of the transactional stress and coping model by assessing a specific cognitive process (i.e.

Factor Analysis of the Stigma Scale-Parent Version in Pediatric Disorders/Differences of Sex Development.

Stigma is a salient experience for both caregivers/parents and individuals with Disorders/Differences of Sex Development (DSD) as evidenced through qualitative and preliminary quantitative reports. However, few validated measures of associative stigma (i.e.

Nitrous oxide and methane production from denitrifying woodchip bioreactors at three hydraulic residence times.

Denitrifying bioreactors remove nitrate (NO) from agricultural drainage and are slated to be an integral part of nitrogen reduction strategies in the Mississippi River Basin. However, incomplete denitrification can result in nitrous oxide (NO) production and anaerobic conditions within bioreactors may be conducive to methane (CH) production via methanogenesis. Greenhouse gas production has the potential to trade excess NO in surface water with excess greenhouses gases in the atmosphere.

In Situ Denitrification in Saturated Riparian Buffers.

Excess NO leaching from the agricultural Midwest via tile drainage water has contributed to both local drinking water and national Gulf of Mexico benthic hypoxia concerns. Both in-field and edge-of-field practices have been designed to help mitigate NO flux to surface waters. Edge-of-field practices focus on maximizing microbial denitrification, the conversion of NO to N gas.

Nitrous Oxide Emissions from Saturated Riparian Buffers: Are We Trading a Water Quality Problem for an Air Quality Problem?

Reestablishing perennial vegetation along riparian areas in agroecosystems reduces nutrient and sediment losses from agricultural lands. However, subsurface (tile) drains bypass traditional buffers routing the majority of shallow groundwater straight to surface waters, limiting their nutrient removal capabilities. Saturated riparian buffers (SRBs) reconnect subsurface drainage water with the soil profile to remove NO in tile water through microbial denitrification.

Portable Automation of Static Chamber Sample Collection for Quantifying Soil Gas Flux.

Quantification of soil gas flux using the static chamber method is labor intensive. The number of chambers that can be sampled is limited by the spacing between chambers and the availability of trained research technicians. An automated system for collecting gas samples from chambers in the field would eliminate the need for personnel to return to the chamber during a flux measurement period and would allow a single technician to sample multiple chambers simultaneously.