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  2. Soil pH - Wikipedia

    en.wikipedia.org/wiki/Soil_pH

    Red = acidic soil. Yellow = neutral soil. Blue = alkaline soil. Black = no data. Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics.

  3. San Marzano tomato - Wikipedia

    en.wikipedia.org/wiki/San_Marzano_tomato

    San Marzano tomatoes originated in the small town of San Marzano sul Sarno, in the province of Salerno near Naples, Italy, and were first grown in volcanic soil in the shadow of Mount Vesuvius. One story goes that the first seed of this tomato came to Campania in 1770, as a gift from the Viceroyalty of Peru to the Kingdom of Naples , and that ...

  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. Tomato - Wikipedia

    en.wikipedia.org/wiki/Tomato

    The tomato (US: / təmeɪtoʊ /, UK: / təmɑːtoʊ /), Solanum lycopersicum, is a plant whose fruit is an edible berry that is eaten as a vegetable. The tomato is a member of the nightshade family that includes tobacco, potato, and chili peppers. It originated from and was domesticated in western South America.

  6. 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 ...

  7. Soil test - Wikipedia

    en.wikipedia.org/wiki/Soil_test

    In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. A soil test can determine fertility, or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive fertility ...