Proceedings
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| Filter results3 paper(s) found. |
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1. The Use of Organic Soil Amendments for Winter Wheat Production in KentuckyMost animal manures are land-applied in the fall and spring after crops have been harvested or prior to planting. Surface application of manures in the fall have more potential for nitrogen (N) loss when applied to fallow land compared to land cropped to winter wheat. This study was conducted to determine the N availability of fall applied organic fertilizers and resulting wheat grain yields compared to urea-N fertilizer. The effects of three organic fertilizer sources and rate on wheat yield and... |
2. Nitrogen Contribution from Different Manure SourcesNitrogen fertilizer equivalencies (NFE) from manure are influenced by manure type, application method, crop selection, and environmental conditions. Much of the research to determine NFE of manure was conducted in tilled systems but many producers use no-tillage (NT) to reduce soil erosion and labor requirements. The objective of this study was to determine NFE for different manure types used in corn (Zea mays L.) cropping systems. Manures consisted of composted swine manure (CSM), poultry litter... |
3. Sulfur Fertility for Kentucky Agriculture: An UpdateSulfur (S) is an essential secondary nutrient for plant growth and is involved with the synthesis of chlorophyll, hormones, and a structural component of proteins. The need for supplemental S fertilizer in Kentucky has been questioned for many years due to lower atmospheric S deposition, fewer fertilizer impurities, soil test laboratory recommendations, and greater crop yields, but field research has not supported this concern. Recent tissue surveys in wheat and alfalfa across Kentucky... E. Ritchey, J. Gray |