Published November 1997. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Nutrients and microorganisms in manure can cause water quality problems. When you collect, handle, and land spread manure, this material can get into surface or groundwater supplies. The level of risk depends on many factors.
Published April 1996. Reprinted August 1997. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Most dairies need no commercial fertilizer if they use manure properly. In most cases, manure can supply all the nitrogen, phosphorus, potassium, and several other nutrients needed for forage production.
Keeping track of nutrient levels in dairy pastures has become an important part of farm management plans. The current recommendation is to fertilize pastures at a level to replace, in equal measure, the nutrients removed through grazing or cutting each year. The Confined Animal Feeding Operations Program (CAFO) run by...
The indiscriminate release of fecal bacteria to the environment
can present a public health hazard when pathogenic species gain access
to drinking and recreational water sources. The extent of bacterial
contamination of surface and ground waters associated with animal
production units and waste application areas seems largely dependent
on the...
"There is growing interest in odor and gaseous emissions from livestock operations because of concern about global warming and enforcement of the Clean Air Act. This bulletin provides and evaluates best management practices for the control of ammonia lost to the air on dairy farms. Benefits are based on an...
Algae have shown great potential as a source for renewable fuels. However, current production schemes have not been able to prove a sustainable energy return on investment due in part to the high costs of nutrient addition and the energy required for drying the biomass. Integrated algae-dairy production systems have...