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Penn State Cooperative Extension Publications

379 matches found for All Records in Extension Publications

Results 86 - 90 of 379

  1. Agronomy Facts 64: Weed Management in Organic Cropping Systems
    Source: Department of Crop and Soil Sciences Publications

    "When managing weeds in organic systems, producers use many of the same techniques used in conventional systems, but they rely much more on nonchemical control strategies. The primary weed control strategies for organic systems are cultural and mechanical, focusing on prevention, crop rotation, crop competition, and cultivation."

  2. Agronomy Facts 6: Comparing Fertilizing Materials
    Source: Department of Crop and Soil Sciences Publications

    "Nutrients are often a limiting factor for plant growth. Under natural conditions, an equilibrium is established that depends on recyling of nutrients to meet plant needs. This equilibrium is disturbed when agricultural crops are grown. Soils must provide greater amounts of plant nutrients than would be needed for natural vegetation. Also, a significant portion of the nutrients are no longer recycled but are removed in the harvested crops. Farmers must supply supplemental nutrients to the soils to ensure optimal crop growth. These supplemental nutrients come in many forms including fertilizers, animals manures, green manures, and legumes. This fact sheet concentrates on the properties of commonly used fertilizers that are important in achieving optimal plant growth."

  3. Agronomy Facts 7: Cutting management of alfalfa, red clover, and birdsfoot trefoil [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The goal of most forage programs is to maximize economic yield of nutrients while ensuring stand persistence. Frequent cutting produces high-quality forage while less frequent cutting generally results in increased stand longevity. Therefore, harvest management of perennial legumes such as alfalfa, red clover, and birdsfoot trefoil requires a compromise between quality and persistence."

  4. Agronomy Facts 9: Large round bale silage
    Source: Department of Crop and Soil Sciences Publications

    "Making round bale silage consists of wilting a forage to 50 to 60 percent moisture content, baling it in a round baler, and ensiling it within a plastic cover. This silage making technique can be used as a feed option by any farmer who produces forage, and it does not require a large silo or haylage harvesting equipment."

  5. Agronomy Series #132: Listing of Characterized Soils in Pennsylvania [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The Pennsylvania State University has been characterizing Pennsylvania soils since 1957. Prior to 1957, soils from three counties (Lancaster in 1955, Chester in 1956, and Erie in 1956) were sampled and characterized by the USDA Soil Conservation Service (SCS). The characterization process entails the excavation of a soil pit, a description of the pedon's (profile) morphology (color, structure, etc.), as well as a description of site characteristics (slope, vegetation, etc.). In addition the soil is sampled horizon by horizon and various laboratory analyses are performed on the collected samples."

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