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  2. Potassium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Potassium_bicarbonate

    Potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil. [ 11 ] Potassium bicarbonate is an effective fungicide against powdery mildew and apple scab , allowed for use in organic farming .

  3. Powdery mildew - Wikipedia

    en.wikipedia.org/wiki/Powdery_mildew

    The most effective non-conventional methods of chemical control against powdery mildew are milk, natural sulfur (S 8 >), potassium bicarbonate, metal salts, and oils. [12] Powdery mildew on a maple leaf as seen under a scanning electron microscope. Metal salt fungicides should be applied on a regular basis up until harvest of the host. [12]

  4. Alternaria solani - Wikipedia

    en.wikipedia.org/wiki/Alternaria_solani

    Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight.The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato.

  5. List of fungicides - Wikipedia

    en.wikipedia.org/wiki/List_of_fungicides

    This is a list of fungicides. These are chemical compounds which have been registered as agricultural fungicides . The names on the list are the ISO common name for the active ingredient which is formulated into the branded product sold to end-users. [ 1 ]

  6. Insecticidal soap - Wikipedia

    en.wikipedia.org/wiki/Insecticidal_soap

    Insecticidal soap is used to control many plant insect pests. Soap has been used for more than 200 years as an insect control. [1] Because insecticidal soap works on direct contact with pests via the disruption of cell membranes when the insect is penetrated with fatty acids, the insect's cells leak their contents causing the insect to dehydrate and die. [2]

  7. Bordeaux mixture - Wikipedia

    en.wikipedia.org/wiki/Bordeaux_mixture

    Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulphate (CuSO 4) and quicklime (Ca O) used as a fungicide. It is used in vineyards, fruit-farms, vegetable-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a preventive treatment; its mode of action is ...

  8. Potassium deficiency (plants) - Wikipedia

    en.wikipedia.org/wiki/Potassium_deficiency_(plants)

    Potassium-deficiency symptoms in beans A potassium-deficient grape leaf Potassium deficiency , also known as potash deficiency , is a plant disorder that is most common on light, sandy soils , because potassium ions (K + ) are highly soluble and will easily leach from soils without colloids. [ 1 ]

  9. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Six tomato plants grown with and without nitrate fertilizer on nutrient-poor sand/clay soil. One of the plants in the nutrient-poor soil has died. Inorganic fertilizer use by region [23] Fertilizers enhance the growth of plants. This goal is met in two ways, the traditional one being additives that provide nutrients.

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