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  2. Soil pH - Wikipedia

    en.wikipedia.org/wiki/Soil_pH

    Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics. [ 1 ] pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+aq) in a solution.

  3. Celebrity tomato - Wikipedia

    en.wikipedia.org/wiki/Celebrity_tomato

    Seeds are typically sown 6-8 weeks before the last frost date. [9] Seed germination usually occurs between 6-10 days. High yields of this plant are achieved by maintaining an appropriate soil pH level of 6.2-6.8. [11] Application of Fertilizer is recommended to the soil when the plant begins flowering.

  4. Soil acidification - Wikipedia

    en.wikipedia.org/wiki/Soil_acidification

    Soil acidification. Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid, such as nitric acid, sulfuric acid, or carbonic acid. It can also be a compound such as aluminium sulfate, which reacts in the soil to release protons.

  5. Rutgers tomato - Wikipedia

    en.wikipedia.org/wiki/Rutgers_tomato

    The Rutgers tomato (Lycopersicon lycopersicum), also known as the Jersey tomato or the Rutgers Select, was the most popular tomato variety in the world before the era of mechanized farming began a change in breeding for durability over flavor. It is an open pollinated beefsteak from the family Solanaceae with an excellent balance of acidity to ...

  6. Hoagland solution - Wikipedia

    en.wikipedia.org/wiki/Hoagland_solution

    The Hoagland solution is a hydroponic nutrient solution that was newly developed by Hoagland and Snyder in 1933, [1] modified by Hoagland and Arnon in 1938, [2] and revised by Arnon in 1950. [3] It is one of the most popular standard solution compositions for growing plants, in the scientific world at least, with more than 20,000 citations ...

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