Alga Fertilizer

     Seaweeds are an integral part of organic agriculture and offer a sustainable alternative to synthetic agrochemicals.Alga fertilizer provide a wide range of benefits and act as biofertilizers that enhance soil health, promote plant growth, and help mitigate various abiotic stresses. They are also an excellent source of natural plant hormones and phenolic compounds, which contribute to better crop performance and quality. They are used as a substitute for commercial fertilizers and are available in different forms: powder, manure, granules, liquid, or foliar sprays.

      Seaweed-based biofertilizers are known to increase the number of rhizobial cells in the soil and improve its structure, which is an important factor in nutrient availability.Alga fertilizer can also suppress soil-borne pathogens, as they contain antimicrobial and antifungal compounds, such as phlorotannins and flavonoids, that inhibit the growth of phytopathogenic microorganisms in the soil. In addition, they enhance microbial activity in the soil by providing carbon and nutrients for them to thrive.

      A variety of studies have shown that Seaweed Extracts can stimulate the growth of crops and increase their yields.Alga fertilizer For instance, the extract of Gracilaria edulis improves the germination and growth of cowpeas and enhances their root growth and shoot development. It has been found that the extract of Caulerpa scalpelliformis increases the growth and yield of maize, wheat, and rice , and the bioactive contents of the extract increase the antioxidant activity of plants and the microbial rhizosphere community.

      The biostimulant effects of seaweeds are attributed to the complex array of chemicals they contain, including polysaccharides, phenolics, and alginates.lignins in the seaweed improve soil structure, which helps in retaining moisture and improving aeration, while the alginates prevent compaction and improve the water holding capacity of clay soils. The polysaccharides also increase cation exchange capacity, which facilitates the retention and transport of nutrients.

       The phenolic compounds in the seaweeds are also known to promote root growth, increase the microbial population in the rhizosphere, and enhance nutrient uptake.Alga fertilizer  Foliar application of the extract of Ascophyllum nodosum increases the microbial population in the rhizosphere, root length, and berry yield of strawberry plants.The biostimulant effect of the Seaweed Extract is due to its plant growth-promoting activities, which are mediated by the plant growth regulators cytokinins and auxins.

      In addition, the plant hormones thaumatin and abscisic acid (ABA) in the Seaweed Extract are known to improve stress tolerance in crops.Alga fertilizer The thaumatin and ABA promote plant growth by increasing the photosynthetic potential, stomatal conductance, transpiration rate, and antioxidant properties of tomato plants.Moreover, the fatty acids in the seaweed extract enhance the accumulation of antioxidants in tomato fruits and reduce the incidence of oxidative damage to them. In addition, the ABA can help in mitigating droughts and high salt levels.

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