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244 matches found for a in Extension Publications

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  1. Agronomy Facts 31A: Soil fertility management for forage crops Pre-establishment [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Soil fertility management for forage crops is a continuous process that begins well before the forage crop is established. In the pre-establishment phase the soil conditions are adjusted to provide optimum soil fertility when the crop is established. At establishment the fertility program should deal with any last-minute small adjustments in soil fertility and any requirements for getting the plants established, such as a starter fertilizer. Finally, once the crop is established the fertility program focuses on maintaining good soil fertility levels for the life of the forage stand."

  2. Agronomy Facts 38A: A nutrient management approach for Pennsylvania: Introduction to the concepts
    Source: Department of Crop and Soil Sciences Publications

    "Nutrient management has taken on new meaning in recent times. Soil fertility traditionally dealt with supplying and managing nutrients to meet crop production requirements. The predictable response of a crop to the application of a deficient nutrient has been the focus. Ways of farming to optimize agronomic production and economic returns to crop production were developed to take advantage of these expected crop responses. Changes in the supply of plant nutrients for this purpose have been dramatic since the end of World War II."

  3. Agronomy Facts 38B: A nutrient management approach for Pennsylvania: Plant nutrient stocks and flows
    Source: Department of Crop and Soil Sciences Publications

    "Almost all decision-making in agriculture, in the boardrooms of industry or on the tractor seats of farms, affects the distribution of materials such as crops and manure within farms, and the movement of materials such as feeds and farm products to and from farms. Most common farm materials contain important plant nutrients, such as nitrogen, phosphorus, and potassium, and are moved as part of the everyday activities of farming and agriculture. As a result, the many factors considered in each management decision affect plant nutrient distribution and have implications for nutrient management to meet the many expectations."

  4. Agronomy Facts 38C: A nutrient management approach for Pennsylvania: Nutrient Management Decision-making [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Effective nutrient management requires decisions to be made at several different levels of detail: strategic, tactical, and operational . Nutrient management activities for the different levels of management can range from the acceptance of a broadly-conceived environmental protection strategy to tracking individual loads of manure."

  5. Agronomy Facts 38D: A nutrient management approach for Pennsylvania: Exploring Performance Criteria [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The focus of nutrient management is rapidly evolving from optimizing agronomic production and economic returns of crop production to balancing farm production with environmental protection. Discovery of limiting factors, creativity in developing and delivering the needed materials or information, and confidence in the projected outcomes of improved soil fertility formed the basis for crop production and economic successes of the past. Scientists, farmers, educators, and industries must respond to the new expectations for environmental protection in many of the same ways."

  6. Agronomy Facts 40: Nutrient Management Legislation in Pennsylvania: A Summary of the Regulations [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "This fact sheet highlights the main points of the Nutrient Management Act and of the regulations. For specific details, you should refer to the Act itself and the regulations."

  7. Agronomy Facts 63: Diagnosing Soil Compaction using a Penetrometer (soil compaction tester)
    Source: Department of Crop and Soil Sciences Publications

    "Soil compaction is a serious concern for farmers in Pennsylvania. Soil compaction can easily reduce crop yields by 10 percent, and can lead to water and soil quality degradation due to increased runoff and soil structure destruction. The continuous consolidation of farms means that herds are growing, more forage is harvested per farm, more manure is being produced, larger equipment is used to spread manure and harvest and transport forages and grain, and the opportunity to tailor field operations to optimum soil conditions for traffic is decreasing. Compaction is therefore an issue that will likely increase in importance in the years to come."

  8. Environmental Soil Issues: Land Application of Sewage Sludge in Pennsylvania - A Plain English Tour of the Regulations [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "At first reading, regulatory language often is difficult to understand because it is written to be technically accurate and legally precise. This fact sheet seeks to provide a "plain English" description of the current regulations for land application of sewage sludge in Pennsylvania. It introduces the approach and concepts used in developing the regulations and explains the regulations' key points."

  9. Pennsylvania Farm-A-Syst: Program Brochure [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The Pennsylvania Farm Evaluation Program (Pennsylvania Farm?A?Syst) is a voluntary farm evaluation that can be used to confirm that a farm is being managed in an environmentally sensitive way. Pennsylvania Farm?A?Syst also promotes an awareness of existing site conditions or management practices that threaten the quality of groundwater and surface water."

  10. Pennsylvania Farm-A-Syst: Introduction [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "The introduction includes a preliminary screening quiz that can help prioritize which Pennsylvania Farm?A?Syst worksheets to complete. It also includes a farmstead map worksheet, which is hand drawn by the evaluator to locate important features that may impact water quality. The worksheets can be used individually or together for a more complete evaluation."

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