Science

Science briefs

Left: Cover crop fields that have not been grazed. Right: Grazing on plots seeded with mixed cover crops. Photos courtesy of Said Hamido.

Integrated grazing and cover crop management enhances soil organic matter accumulation

May 28, 2026

Original drone picture from the pasture area (left) next to a modeling scheme and prediction map of grass and legume distribution generated using a convolutional neural network (right). Grass is shown in dark green and legumes in light green. Red areas represent non-vegetated zones or background. Paddocks are labeled from 1 to 9; paddocks 3, 5, and 9 contain a bahiagrass–rhizoma peanut mixture, while the others are bahiagrass only. Photo courtesy of Igor Bretas, first author on the study.

A new approach to estimate botanical composition in mixed pastures

May 26, 2026

Field photos showing unmined (a) and mined (b) landscapes in Tigray, Ethiopia, highlighting clear differences in vegetation cover and soil condition following traditional gold mining. Photos courtesy of Meaza Zenebe, Mekelle University.

Traditional gold mining reduces soil function in the drylands of Ethiopia

May 22, 2026

Left: Potato flowers showing anthers and part of the pistils. Right: In-vitro pollen germination. Styles and pollen were used to study S-RNases and SLFs. Photos courtesy of Mercedes Ames, first author on the study.

Decoding the potato's mating language

May 20, 2026

Microscopic image of two juvenile guava root-knot nematodes (GRKN), one newly hatched and one unhatched. Image colorized. Photo by William Rutter, USDA-ARS.

Using genomics to manage the invasive guava root-knot nematode

May 18, 2026

Researchers assessed the degree to which randomization across breeding cohorts could improve selection accuracy using simulations based on real genotypic data from University of Illinois wheat breeding lines. Photo by Ann Marshall, USDA-ARS.

Randomization across breeding cohorts reduces confounding environmental effects, improving selection accuracy

May 14, 2026

Groundwater sampling campaign (October 2023). Dr. Rob Jamieson and PhD student Lindsay Johnston collect water from monitoring wells around the trench for analysis of inorganics, nutrients, and microbiological parameters. Photo courtesy of Débora Boratto.

Can soil-based treatment systems be used for community wastewater treatment in the Arctic?

May 7, 2026

Soil Riddles

AI-generated image courtesy of ChatGPT.

Soil riddles: June 2026

May 26, 2026

Presidents Picks

President's pick: SSSA research June 2026

President's pick: SSSA research June 2026

May 21, 2026

Down to Earth

Bee pollinator

Making your lawn better for bees

May 13, 2026

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