Session: Coupling and Feedbacks of Phosphorus and Nitrogen in Soil and Ecosystems: Missing Gaps and Future Directions Oral (includes student competition)

Division: SSSA Division: Soil Chemistry

Title: Coupling and Feedbacks of Phosphorus and Nitrogen in Soil and Ecosystems: Missing Gaps and Future Directions Oral (includes student competition)

Organizers: Deb P. Jaisi , Ganga M. Hettiarachchi , Xionghan Feng and Shenqiang Wang
Moderators: Deb P. Jaisi , Ganga M. Hettiarachchi , Xionghan Feng and Shenqiang Wang
Lead Community Sponsor:
Cosponsor: SSSA Division: Soils and Environmental Quality, SSSA Division: Soil Fertility and Plant Nutrition
Community Cosponsor:
Format: Oral Topical Session
Keywords: Climate, Food Security, Nitrogen and Phosphorus

Session Description: Phosphorus and nitrogen are critical elements for the productivity in agricultural and non-agricultural ecosystems and thus are closely connected and coupled for food and climate security. Quantifying nutrient availability and budgets in agricultural soils and over spatial-temporal boundary in ecosystems is an essential step towards improving nutrient use efficiency and sustainable nutrient management. This demands bringing basic and applied research, compare positive and negative effects, and seek holistic relationship between two elements. We invite contributions on controls of inputs/outputs on agricultural productivity and environmental quality through advanced analytical methods including NMR, HPLC, XAS, and stable isotopes-based measurements and model studies.