The specialization and intensification of agriculture have produced incredible gains in
productivity, quality, and availability of agricultural commodities but have resulted in the …

Abstract The Long‐Term Agroecosystem Research (LTAR) network is a collaborative
initiative funded by the US Department of Agriculture, Agricultural Research Service, aimed …

The uncoupling of animal and crop production has resulted in long-term accumulation of
manure nutrients in many areas, contributing to nutrient pollution. Prudent recycling of …

Lagoon sludge, a byproduct of swine operations in the Southeast United States, poses a
management challenge due to its high mineral and metal content. Composting is a low-cost …

Manure application at the right place, time, and rate is critical for sustainable manure
management. A land suitability framework (LSF) was previously developed for identifying …

Inputs of fertilizer nutrients in agriculture are estimated to have contributed to> 40% increase
in crop production over the past century, resulting in widespread benefits to food security …

Nutrient cycling in crop–animal production is impacted by changes in both systems, with
imbalance hotspots in concentrated animal production regions severely impacting water …

Highlights The MAPHEX System removes and concentrates most of the P and other
nutrients from liquid dairy manures. Most of the N and K are left in the liquid fraction for the …

Agricultural manure management can be problematic in watersheds such as the
Chesapeake Bay when land-application introduces nitrogen and phosphorus into water …

Livestock products contain valuable nutrients that enhance human health, and their
production generates positive local and national economic impacts. The livestock sector …