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Physical Properties of Kelp Fertilizer

Kelp, which is a species of seaweed, improves soil and plants when used as a fertilizer. More than 70 trace elements are found in kelp, all of which are utilized by plants for growth and vigor. Kelp extracts increase the shelf life of both vegetables and fruits. When sprayed onto plants' leaves, kelp produces accelerated growth and increases the seed germination rate when applied as a solution to the growing medium.
  1. Cytokinins

    • Seaweed contains cytokinins, which control and regulate the growth and plant cell division. Cytokinins also retard the tissue and cell deterioration, are responsible for the enlargement and differentiation of cells and for chloroplast development. Kelp fertilizer application during late spring and early summer is important, as this is when plants change from their vegetative growth stage to produce fruit and flowers.

    Carbohydrate Mannitol Chelates

    • Kelp contains a carbohydrate mannitol chelate that makes its many minerals and trace elements easily available for use by plants. This helps a plant build its own immune system. Once the immune system is functioning, the plant is better able to resist negative environmental conditions, such as drought, frost and attack by insects. The chelates in kelp aid plant's absorption of essential elements from the soil, by stimulating bacteria in the soil to release its plant nutrients.

    Growth Hormones and Colloids

    • Kelp contains growth hormones, including gibberellins and auxins. One principal growth hormone kelp fertilizers contain is cytokinins, which slows the aging process, among other positive benefits. Indole-3-acetic acid promotes rooting in both cuttings and in plants, which are being transplanted. Indole-3-acetic acid also retards crop decay. The colloids in kelp improve soil viability.

    Potassium

    • Potassium, which is frequently missing from the soil, is a principal aid to plant health because it drives numerous important processes in the plant. Indoor and outdoor plants, fruit trees and lawns utilize potassium. Kelp fertilizers contain potassium, which is promotes fruiting and flowering. Potassium is required to create colored pigments and various phytochemicals, which promote health in people. Plants also require potassium to build a strong structure and to fight disease.