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8 matches found for Aged Wood in Extension Publications

Results 1 - 8 of 8

  1. 100% Environmental Soil Issues: Garden Use of Treated Lumber [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Because it has excellent decay resistance, treated lumber is often used in situations when wood needs to be in contact with soil. In the garden, this includes use as bed borders or trim; support for raised garden beds; plant stakes; and compost bins. However, many gardeners are concerned that the chemicals used to preserve the lumber could harm garden plants and the people who eat them. This fact sheet explains the most widely used method for treating wood, examines the possible risks from gardening uses of treated lumber, and makes recommendations for reducing any such risks."

  2. 66% Pennsylvania Farm-A-Syst: Worksheet 5: Milkhouse Waste Management [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Milking center wastewater usually is considered a dairy sanitation problem. If not carefully managed, however, dairy wastewater can contaminate surface water or groundwater. Milkhouse wastewater may contain paper towels, detergent, milk solids, fats, manure, and other organic materials that reduce oxygen levels in water as they decompose. Fish and other aquatic life need this oxygen to live. If milk is frequently poured down the milkhouse drain, milk fats can cause premature aging of a wastewater septic system due to clogging of the drain field."

  3. 66% Agronomy Series #146: Radiocarbon Data for Pennsylvania Soils [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Radiocarbon dating of material has given scientists a major tool to determine the age of materials that have incorporated carbon from the atmosphere into various organic as well as inorganic forms."

  4. 66% Body Condition Excel Spreadsheet Tool [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Enter BCS for multiple animals and compare them to goals by stage of lactation (for cows) or by age (for heifers). Individual animal files also available. Click on a file name to open, right-click and choose "save as" to download the excel files."

  5. 66% Feeding the Newborn Dairy Calf [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Calf health, growth, and productivity rely heavily on nutrition and management practices. Every heifer calf born on a dairy farm represents an opportunity to maintain or increase herd size, to improve the herd genetically, or to improve economic returns to the farm. The objectives of raising the newborn calf to weaning age are optimizing growth and minimizing health problems. To accomplish these goals, it is necessary to understand the calf?s digestive and immune systems, her nutrient needs, and the feed options available to meet those needs."

  6. 66% Measuring Techniques For Ponies [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Topics covered in this fact sheet include certification and duties of measurers, equipment, measurement surface, position of animal and measurement method, measurement of toe and heel, age of animal and records."

  7. 66% Monitoring Dairy Heifer Growth [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Raising dairy heifers to an adequate size and with an age at first calving between 22 and 24 months can optimize profitable milk production. This 16-page publication covers measuring heifers, growth charts, evaluating growth charts, compensatory growth, use of ionophores to improve growth, and body condition of dairy heifers."

  8. 42% Managing Phosphorus for Agriculture and the Environment [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Phosphorus (P) is an essential element for plant and animal growth and is necessary to maintain profitable crop and livestock production. It also can increase the biological productivity of surface waters by accelerating eutrophication, the natural aging of lakes or streams brought on by nutrient enrichment. Although eutrophication is a natural process, it can be sped up by changes in the land use of a watershed that increase the amount of nutrients added to an aquatic system. The Environmental Protection Agency has identified eutrophication as the main problem in United States surface waters that have impaired water quality."


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