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  2. Guz - Wikipedia

    en.wikipedia.org/wiki/Guz

    By 1875, the average value of the guz in Bengal was 36 inches (1.0 yd; 910 mm), but was 33 inches (840 mm) in Madras and 27 inches (690 mm) in Bombay. [ 1 ] [ 2 ] By the 20th century, the guz was uniformly quoted as being equal in length to one yard in the English system , or 0.91 metres in the metric system . [ 3 ]

  3. Soil mechanics - Wikipedia

    en.wikipedia.org/wiki/Soil_mechanics

    According to the Unified Soil Classification System, a #4 sieve (4 openings per inch) having 4.75 mm opening size separates sand from gravel and a #200 sieve with an 0.075 mm opening separates sand from silt and clay. According to the British standard, 0.063 mm is the boundary between sand and silt, and 2 mm is the boundary between sand and gravel.

  4. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    Coarse or thick: 5–10 mm platy, granular; 20–50 mm blocky; 50–100 mm prismlike. Very coarse or very thick: >10 mm platy, granular; >50 mm blocky; >100 mm prismlike. Grades: Is a measure of the degree of development or cementation within the peds that results in their strength and stability.

  5. Chain (unit) - Wikipedia

    en.wikipedia.org/wiki/Chain_(unit)

    The UK statute chain is 22 yards, which is 66 feet (20.1168 m). This unit is a statute measure in the United Kingdom, defined in the Weights and Measures Act 1985. [6] One link is a hundredth part of a chain, which is 7.92 inches (20.1168 cm).

  6. History of measurement - Wikipedia

    en.wikipedia.org/wiki/History_of_measurement

    Before the establishment of the decimal metric system in France during the French Revolution in the late 18th century, [2] many units of length were based on parts of the human body. [3] [4] The Nippur cubit was one of the oldest known units of length. The oldest known metal standard for length corresponds to this Sumerian unit and dates from ...

  7. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    One acre equals 1 ⁄ 640 (0.0015625) square mile, 4,840 square yards, 43,560 square feet, [2] or about 4,047 square metres (0.4047 hectares) (see below).While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based.

  8. Compost - Wikipedia

    en.wikipedia.org/wiki/Compost

    It is expected that the spread layer is very thin (approximately 6 mm (0.24 in)) and worked into the soil prior to planting. Application rates of 25 mm (0.98 in) or more are not unusual when trying to rebuild poor soils or control erosion.

  9. Woodchips - Wikipedia

    en.wikipedia.org/wiki/Woodchips

    The requirements for GF60 are that the moisture is between 10 and 30% and the fractions of the woodchips are distributed as follows: 0–3.5mm: <8%, 3.5–30mm: <7%, 30–60 mm: 80–100%, 60–100 mm: <3%, 100–120 mm: <2%. [32] The energy content in one cubic metre is normally higher than in one cubic metre wood logs, but can vary greatly ...