Oilseed meal can provide a source of plant-derived nitrogen fertilizers. Agronomic research is needed to help farmers implement these alternative fertility sources. Seed meals are a high-protein byproduct of seed oil extraction from crops such as soybean, hemp, and peanut. While they are a byproduct, seed meals still retain nutrient value after the oil pressing process, and are high in protein. Hence, seed meals are often utilized as livestock feed. Seeds meals can also be used as organic soil amendments, and can act as fertility sources to farmers. In order to examine the efficacy of several seed meals as fertilizers, the University of Vermont Extension Northwest Crop and Soils (NWCS) Program conducted a trial in the 2018 field season in which sweet corn yield and soil nitrate-N (NO3) levels were evaluated.


Vermont, University of Vermont, oilseed meal, oilseed fertility

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