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Penn State Cooperative Extension Publications

379 matches found for All Records in Extension Publications

Results 321 - 325 of 379

  1. Riparian Buffers in the Chesapeake Bay Watershed [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The condition of a riparian buffer - the areas adjacent to a stream, river, or water body - greatly influences the water quality of all water bodies and wetlands. Forested riparian zones reduce the delivery of non-point source pollution to waterways and water bodies, an issue of great concern to anyone interested in the ecological health of the Chesapeake Bay Watershed, and the Commonwealth of Virginia. (The focus on the reduction of non-point source pollution was enhanced when the 1972 Clean Water Act was amended in 1987 with section 319 that called for plans to control such sources of pollution.)"

  2. Sample Job Description: Parlor Operator [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Sample summary, qualifications, duties, hours and compensation of a Parlor Operator. "

  3. Soil Management Research Reports: Compaction Management in No-till, 2003 [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The results of this study show that compaction can have significant negative effects for soil properties and crop yield in continuous no-tillage systems."

  4. Soil Management Research Reports: Tillage Evaluation Study Landisville, Lancaster County [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Research in the early 1980?s showed that no-till produced lower yields than conventional till (moldboard or chisel plowed) at the Penn State Southeast Agricultural Research and Extension Center. However, research from similar agroecological zones shows no yield decrease in no-till corn compared to conventional tillage. Although the benefits of no-till have been confirmed in many studies in different parts of the USA, only 8% of the planted acres was no-tilled in Lancaster County in 2000, while 91% of the planted acres was not under conservation tillage (i.e. it had less than 30% crop residue at the surface at planting). Conservation tillage has important benefits for the environment, but if yields are not competitive its adoption will be inhibited."

  5. Soil Management Research Reports: Tillage Evaluation Study Rock Springs, Centre County
    Source: Department of Crop and Soil Sciences Publications

    "Six tillage treatments were started in 1978 at the Russell E. Larson Agricultural Research Center in Rock Springs in Centre County, Pennsylvania. The plots have been planted in corn every year since the beginning of the study with the exception of 1986 when Ogle oats were planted, and 1993 when soybeans were planted in some of the plots. The six tillage treatments have remained as originally established, except for the "disked once" treatment which was discontinued to introduce the zone-till treatment in 2001. With collaboration from the staff at the Larson Agronomy Research Farm at Rock Springs, this study was continued in 2003 in the Fry K field."

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