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  2. Organic lawn management - Wikipedia

    en.wikipedia.org/wiki/Organic_lawn_management

    A primary element of organic lawn management is the use of compost [2] and compost tea to reduce the need for fertilization and to encourage healthy soil that enables turf to resist pests. [3] A second element is mowing tall (3" – 4") to suppress weeds and encourage deep grass roots, [4] and leaving grass clippings and leaves on the lawn as ...

  3. Sand-based athletic fields - Wikipedia

    en.wikipedia.org/wiki/Sand-based_athletic_fields

    Highly maintained areas of grass, such as those on an athletic field or on golf greens and tees, can be grown in native soil or sand-based systems. There are advantages and disadvantages to both that need to be considered before deciding what type of soil to grow turf in. [4] Native soils offer many positive qualities, such as high nutrient holding capacity, water holding capacity, and sure ...

  4. San Joaquin (soil) - Wikipedia

    en.wikipedia.org/wiki/San_Joaquin_(soil)

    San Joaquin soil profile San Joaquin soil landscape. San Joaquin is an officially designated state insignia, the state soil of the U.S. state of California.. The California Central Valley has more than 500,000 acres (2,000 km 2) of San Joaquin soils, named for the south end of that valley.

  5. List of beneficial weeds - Wikipedia

    en.wikipedia.org/wiki/List_of_beneficial_weeds

    Its juice was once used in the place of rennet in cheese-making. It was also a source of "green" for dye. It can still be used as a high-protein additive in animal feed, once dried. Nettles prefer soils rich in nutrients beneficial to other plants—particularly nitrogen and phosphorus—and thus can be useful indicators of soil quality. [3 ...

  6. Cover crop - Wikipedia

    en.wikipedia.org/wiki/Cover_crop

    As well as bringing nitrogen into agroecosystems through biological nitrogen fixation, types of cover crops known as "catch crops" are used to retain and recycle soil nitrogen already present. The catch crops take up surplus nitrogen remaining from fertilization of the previous crop, preventing it from being lost through leaching , [ 17 ] or ...

  7. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Soil pH is a measure of the soil's acidity or alkalinity and is determined on a scale from 0 to 14, with 7 being neutral. A pH value below 7 indicates acidic soil, while a pH value above 7 indicates alkaline or basic soil. Soil acidification is a significant concern in agriculture and horticulture.