66-12 Development of Nitrogen Non-Responsive Soils in Long-Term Organic Systems.
Poster Number 243
See more from this Division: ASA Section: Agronomic Production SystemsSee more from this Session: Organic Management Systems: II (Includes Graduate Student Competition)
Monday, November 3, 2014
Long Beach Convention Center, Exhibit Hall ABC
Organic and non-organic treatments in the long-term farming systems project (FSP) at the USDA ARS research center in Beltsville, MD were evaluated for repsonse to N inputs over two years. In organic systems with long history of N input as both manure and legume little to no reponse was oobserved from N inputs compared to no N treatment.
See more from this Division: ASA Section: Agronomic Production SystemsTHese results indicate that accumlation of organic N over many years can result in little to no need for additional inputs.
See more from this Session: Organic Management Systems: II (Includes Graduate Student Competition)