E. Beauchamp

Publications126
h-index37
Citations4,254
Highly Influential Citations216
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Cover Crop Effects on Nitrogen Availability to Corn following Wheat
Maximizing the environmental and economic benefits of cover crops partially depends on an accurate estimate of the N fertilizer requirement of subsequent crops. Four trials involving cover crop,… Expand
  • 125
  • 26
Profile nitrous oxide and carbon dioxide concentrations in a soil subject to freezing
  • 225
  • 17
Carbon Sources for Bacterial Denitrification
There are many factors that affect denitrification and these have been reviewed by Delwiche and Bryan (1976), Payne (1981), and Knowles (1982). None of these authors have provided an in-depth review… Expand
  • 261
  • 11
Leaching of Nitrogen and Phosphorus from the Biomass of Three Cover Crop Species
Cover crops, although they may reduce the leaching of NO 3 -N to groundwater, may increase nutrient concentration in runoff because of biomass leaching during rainfall events. A simulated rainfall… Expand
  • 78
  • 11
Estimates of nitrous oxide emissions from agricultural fields over 28 months
Field studies conducted throughout the calendar year are needed to improve flux estimates for the greenhouse gas nitrous oxide (N2O). In this study, we report monthly N2O emissions measured using… Expand
  • 215
  • 10
AVAILABILITY OF NITROGEN FROM THREE MANURES TO CORN IN THE FIELD
Three manures were compared with urea as sources of nitrogen for corn (Zea mays L.) on a different field site in each of 3 yr. The manures and their average –N:total N ratios were as follows: liquid… Expand
  • 120
  • 9
Soil nitrate accumulation and corn response to preceding small-grain fertilization and cover crops
Potential benefits associated with establishing cover crops, such as reduced NO 3 leaching risk and lower fertilizer N requirements for succeeding crops, will he fully realized only when the cover… Expand
  • 124
  • 9
Relationship between volatile fatty acids, total ammonia, and pH in manure slurries
Abstract Manure slurries from dairy cattle, swine, poultry and beef cattle operations were studied to determine the relationship between pH, volatile fatty acid (VFA) and total ammonia (NH4+ + NH3)… Expand
  • 94
  • 6
Denitrification in Soil Aggregates of Different Sizes
The denitrification potential in different size aggregates of a silt loam soil was studied to explain spatial variability of denitrification. Seven aggregate size ranges (<0.25, 0.25-0.5, 0.5-1, 1-2,… Expand
  • 117
  • 6
Denitrification and ammonification at low soil temperatures
A laboratory study was conducted to determine the effects of temperatures from −2 to 25 °C on denitrification and ammonification in anaerobic soil treated with alfalfa or glucose. Organic C substrate… Expand
  • 98
  • 6