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  1. Reduced Air Infiltration

    https://greenhome.osu.edu/reduced-air-infiltration

    a home's ACH, a home's air flow rate is measured in cubic feet per minute, per square foot of a home ... small openings in your house, and the air infiltration rate is measured in your home in units of cubic ... Building America's performance criteria, your home should have an air leakage rate of less than 0.25 ...

  2. Energy Audit

    https://greenhome.osu.edu/energy-efficiency/energy-audit

    air pressure difference between the inside and outside to determine the air infiltration rate of the ... home. If the test shows large air infiltration rates, the professional will then will use a smoke pen to ...

  3. New Study Will Track Ways to Cut Runoff from Elevated Phosphorus Fields

    https://agnr.osu.edu/news/new-study-will-track-ways-cut-runoff-elevated-phosphorus-fields

    soil matters, such as the types and rates of fertilizer to apply — and some of the farmers they work ... phosphorus runoff by using the “4R” practices. The 4Rs stand for the right source, right rate, right time and ...

  4. Warm Season Annual Grasses

    https://wayne.osu.edu/news/warm-season-annual-grasses

    recommends seeding rates of 23 to 25 pounds/acre for sudangrass and sorghum-sudangrass.  Plant pearl millet ... at 20 pounds/acre.  Many seed companies recommend seeding rates of 30 to 35 pounds per acre for ... sudangrass and sorghum-sudangrass varieties and those higher seeding rates can result in small diameter plant ...

  5. Water Heating

    https://greenhome.osu.edu/energy-efficiency/water-heating

    R-Value indicates a lower heat loss from the hot water tank. First-hour rating (FHR) This is the amount of ... may demand in the morning hours, and the first-hour rating must exceed your family demand. Recovery ... rating, which can also be referenced as the coefficient of performance (COP). 27 Fuel Oil A low viscosity ...

  6. Manure Spreader Calibration

    https://wayne.osu.edu/news/manure-spreader-calibration

    commercial or synthetic fertilizer we talk about an application rate; pounds of a particular nutrient that ... should be applied per acre.  The desired application rate is achieved by using a calibrated fertilizer ... spreader.  We can do the same with our manure spreaders.              The application rate for manure ...

  7. Wheat Nitrogen Fertilization

    https://wayne.osu.edu/news/wheat-nitrogen-fertilization

    N rates in wheat. For now, this system relies on yield potential (which may change in a few years with the ... update of the Tri-State Guide). A producer can greatly increase or reduce the N rate by changing the ... value for yield potential. Thus, a realistic yield potential is needed to determine the optimum N rate ...

  8. Managing for High Quality Stored Forage

    https://wayne.osu.edu/news/managing-high-quality-stored-forage-0

    feed value or relative feed quality values decline about 4 points per day.  Rates of decline are not as ... moisture as soon as possible. After mowing, plants continue to respire at a significantly high rate until ...

  9. Natural Ventilation

    https://greenhome.osu.edu/natural-ventilation

    typologies and controls different types of windows will result in different ventilation rates. External ...

  10. Alfalfa Stand Evaluation

    https://wayne.osu.edu/news/alfalfa-stand-evaluation

    publication contains color photo illustrations of root health ratings. ...

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