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  2. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    For example, nitrogen compounds comprise 40% to 50% of the dry matter of protoplasm, and it is a constituent of amino acids, the building blocks of proteins. [9] It is also an essential constituent of chlorophyll. [10] In many agricultural settings, nitrogen is the limiting nutrient for rapid growth.

  3. Plant nutrients in soil - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrients_in_soil

    Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

  4. 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 ...

  5. You need to choose good roses for gardening. Here's how - AOL

    www.aol.com/choose-good-roses-gardening-heres...

    Grade one roses are the best and must have at least 3 canes at least 5/16 inch in diameter, while a grade 2 rose must have at least 2 canes at least 5/16 inch in diameter, while a grade 3 rose ...

  6. List of nitrogen-fixing-clade families - Wikipedia

    en.wikipedia.org/wiki/List_of_nitrogen-fixing...

    The nitrogen-fixing clade consists of four orders of flowering plants: Cucurbitales, Fabales, Fagales and Rosales. [a] This subgroup of the rosids encompasses 28 families of trees, shrubs, vines and herbaceous perennials and annuals. The roots of many of the species host bacteria that fix nitrogen into compounds the plants can use. [4] [5]

  7. Nitrogen deficiency - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_deficiency

    Soil organisms use any nitrogen available to break down carbon sources, making nitrogen unavailable to plants. [1] This is known as "robbing" the soil of nitrogen. All vegetables apart from nitrogen fixing legumes are prone to this disorder. Nitrogen deficiency can be prevented by using grass mowings as a mulch or foliar feeding with manure.

  8. Prune roses soon to reinvigorate plants and promote fall ...

    www.aol.com/prune-roses-soon-reinvigorate-plants...

    If your rose bushes are older, you may need a pair of loppers to be able to chop off larger canes. The blades should be sharp. Dull pruners and loppers won’t make clean cuts, impeding healing ...

  9. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Although nitrogen makes up most of the atmosphere, it is in a form that is unavailable to plants. Nitrogen is the most important fertilizer since nitrogen is present in proteins (amide bonds between amino acids), DNA (puric and pyrimidic bases), and other components (e.g., tetrapyrrolic heme in chlorophyll). To be nutritious to plants, nitrogen ...

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