Science briefs

Collecting surface soil for determining wet aggregate stability from soybeans in a field with little surface residue. Photo courtesy of USDA-ARS.

Retaining stover quantitatively increases stable aggregates

February 23, 2021

Tennessee State University vertical vegetable garden in a high tunnel. Photo by Dilip Nandwani.

Urban agriculture to meet growing population needs

February 21, 2021

Here, the most diverse perennial polyculture treatment at the Kellogg Biological Station in southwest Michigan showcases the beauty of a restored prairie. Photo by Julie Doll.

Perenniality and crop diversity enhance soil health

February 21, 2021

Lead author Dr. Abdullah Mohammed placing rescued five-day-old barley embryos onto tissue culture media to allow them to mature into seedlings. Photo by Omar Nazhan Ali.

How to support trans-species barley embryos

February 21, 2021

Application of poultry litter with a small-plot manure spreader in a study that investigated methods of managing nutrient buildup due to repeated poultry litter applications. Photo by H. Tewolde.

Rotating fertilizers a sustainable alternative to P-based poultry litter management

February 21, 2021

Collecting surface soil for determining wet aggregate stability from soybeans in a field with little surface residue. Photo courtesy of USDA-ARS.

Retaining stover quantitatively increases stable aggregates

February 21, 2021

Current collection and storage of animal manure from open parks results in nitrogen losses and hence low nitrogen fertilizer value for crops. Photo by O. Y. A. Traoré.

Isotope-labeled fertilizer shows uptake by sorghum, microorganisms

February 21, 2021

Co-author Kuo Huang collecting basic soil samples after overwintering and before ridging in a tobacco field. Photo courtesy of Yongqiang Zhang.

Tobacco root rot and microorganism communities

February 21, 2021

Field technician from Alberta Agriculture and Forestry decommissioning groundwater wells at a CFO site. Photo courtesy of the Government of Alberta.

Groundwater quality after closing an earthen manure storage

February 17, 2021

Drone image of a central Montana field of safflower exhibiting symptoms of aluminum toxicity from low-pH surface soils. Photo by Dr. Scott Powell.

Mitigating wheat yield loss in acid soils

February 17, 2021

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