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Penn State Cooperative Extension Publications

379 matches found for All Records in Extension Publications

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  1. Agronomy Series #149: The pH Base Saturation Relationships of Pennsylvania Subsoils [pdf]Get Acrobat Reader
    Source: Department of Crop and Soil Sciences Publications

    "Percent base saturation of the subsoil is used in Soil Taxonomy as the classification criterion for separating Alfisols from Ultisols, and Eutrudepts from Dystrudepts, as well as in other classification categories. When laboratory determinations are unavailable, soil scientists commonly use soil pH to estimate the percent base saturation. Predictions have not been reliable, however, because base saturation at given pH varies considerably from one soil to another."

  2. Air and water quality issues will influence how rations are formulated for protein. [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Nitrogen is as important as phosphorus in environmental regulations, and maybe even more so, because water and air quality issues are strongly influenced by this element. Odor problems are moving to the forefront of public concerns. "

  3. Animal diagnostic, forage, and feed testing laboratories in the northeast [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "List of addresses and phone numbers for laboratories in Pennsylvania and nearby states. These listings do not constitute an endorsement of these labs."

  4. Análisis Económico Para Programas Eficientes de Reemplazo de Vaquillas [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

  5. Artificial Insemination for Swine [pdf]Get Acrobat Reader
    Source: Penn State - Dairy and Animal Science Publications

    "Artificial insemination (A.I.) is a process of collecting semen from a boar and depositingit into the cervix of a sow. Both collection and insemination are accomplished throughartificial means. But attention must be paid to the normal biological processes to achievesuccess."

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