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Research Project: NUTRIENT MANAGEMENT IN ORGANIC NO-TILL SYSTEMS

Location: Sustainable Agricultural Systems Laboratory

2012 Annual Report


1a.Objectives (from AD-416):
The overall goal for this project is to develop reduced-tillage grain production systems for both sustainable and organic grain farmers where biologically fixed nitrogen is maximized and coupled with supplementary fertility to optimize corn performance in high residue, reduced-tillage environments of the Mid-Atlantic region. Specific objectives include:.
1)determine optimum starter fertilizer delivery rates of animal-based fertility products (pelleted poultry litter, feather meal, ground poultry litter) and organically approved mineral sources (Chilean nitrate) using no-till corn planter fertility delivery systems;.
2)quantify impacts of soil-applied manure-based starter fertilizers on crop quality, yield, herbicide and fertilizer use, farm costs, and environmental parameters;.
3)conduct on-farm demonstration trials that optimize nutrient management in reduced-tillage organic grain systems; and.
4)disseminate knowledge gained from on-farm and on-station reduced-tillage grain crop research using on-farm field days, webinars, and The Rodale Institute New Farm website.


1b.Approach (from AD-416):
Our research objectives will be addressed by conducting on-station experiments at three research stations (BARC, North Carolina State University, and The Rodale Institute), and three organic farms chosen to represent a range of environmental conditions and management systems in organic grain cropping systems of the mid-Atlantic region. Replicated experimental plots will be established at each site consisting of a range of starter fertilizer amendments applied at corn planting into a cover crop mixture consisting of a high and low legume:grass ratio. The starter fertilizer amendments will include both mineral sources of fertility and animal-based products. The amendments will also include mixtures of animal-based products and organically approved mineral fertility sources.


3.Progress Report:

The first year of the project has commenced. We tested the effects of pelleted poultry litter applied as a starter fertilizer for corn across a gradient of grass:legume mixture proportions. Data collected includes corn N uptake at several early growth stages as well as leaf area and weed biomass. We have had several planning sessions among collaborators and have made additional modifications to the project. A graduate student has recently joined the collaboration and will be examining weed dynamics in the project locations.


   

 
Project Team
Mirsky, Steven
 
Project Annual Reports
  FY 2012
 
Related National Programs
  Agricultural System Competitiveness and Sustainability (216)
 
 
Last Modified: 05/23/2013
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