S. R. Shafer

Publications41
h-index15
Citations1,002
Highly Influential Citations37
Claim Author Page
Author pages are created from data sourced from our academic publisher partnerships and public sources.

Recommended Authors

  • U. Blum
  • 119 Publications, 3,757 Citations
  • A. Mosier
  • 237 Publications, 20,405 Citations
  • R. F. Follett
  • 258 Publications, 13,768 Citations
  • H. Rogers
  • 162 Publications, 7,345 Citations
  • Publications
  • Influence
Microbial populations and phenolic acids in soil
Abstract Populations of bacteria, fungi and actinomycetes in Portsmouth A 1 - and B,-soil material were affected in different ways by repeated enrichment with ferulic, p -coumaric, p -hydroxybenzoic… Expand
  • 205
  • 7
Induction and/or Selection of Phenolic Acid-Utilizing Bulk-Soil and Rhizosphere Bacteria and Their Influence on Phenolic Acid Phytotoxicity
Bulk-soil and rhizosphere bacteria are thought to exert considerable influence over the types and concentrations of phytotoxins, including phenolic acids, that reach a root surface. Induction and/or… Expand
  • 106
  • 7
GRACEnet: Greenhouse gas reduction through agricultural carbon enhancement network
Abstract GRACEnet (greenhouse gas reduction through agricultural carbon enhancement network) is a new research program initiated by the Agricultural Research Service (ARS) of the United States… Expand
  • 41
  • 4
  • PDF
Formation of ectomycorrhizae on Pinustaeda seedlings exposed to simulated acidic rain
Effects of simulated acidic rain on formation of ectomycorrhizae were studied with Pinustaeda seedlings grown in plastic trays in a greenhouse. Trays of ectomycorrhizal seedlings were exposed 37… Expand
  • 66
  • 2
Growth responses of field-grown loblolly pine to chronic doses of ozone during multiple growing seasons
Dose–response relationships were developed for ozone and four full-sib families of Pinustaeda L. Seedlings were planted in field plots in open-top chambers near Raleigh, North Carolina, and exposed… Expand
  • 61
  • 2
Effects of long-term ozone exposure and soil-moisture deficit on growth of a ladino clover-tall fescue pasture
Most field studies relating seasonal ozone (O3) exposure to crop yield have been performed in the absence of plant moisture stress. The authors examined the response of a mixture of ladino clover and… Expand
  • 49
  • 2
A Long-Term Agro-Ecosystem Research (LTAR) Network for Agriculture
As the 21 st century unfolds, agriculture will face a series of challenges—in the United States and globally—in providing sufficient food, fiber, and fuel to support a growing global population while… Expand
  • 30
  • 2
  • PDF
Carbon dioxide enrichment and nitrogen fertilization effects on cotton (Gossypium hirsutum L.) plant residue chemistry and decomposition
Increased atmospheric carbon dioxide (CO2) concentration will likely cause changes in plant productivity and composition that might affect soil decomposition processes. The objective of this study… Expand
  • 20
  • 2
Effects of acid precipitation on plant diseases
Most plant diseases consist of delicate interactions between higher plants and microorganisms. Acidic precipitation represents an environmental stress that has been shown to affect expected… Expand
  • 9
  • 2
A reagent strip for measuring the specific gravity of urine.
A solid-phase reagent for determination of urinary specific gravity (relative density) is described. This reagent strip, similar to others in the "N-Multistix" series (Ames), contains a polyacid… Expand
  • 40
  • 1
  • PDF