What is seaweed fertilizer?
Seaweed fertilizer refers to using large algae growing in the ocean as raw materials. Through chemical, physical or biological methods, the active ingredients in the seaweed are extracted to make fertilizer and applied to plants as nutrients. It can promote plant growth and improve Yield and improve the quality of agricultural products.
The efficacy and function of seaweed fertilizer
Relevant research shows that seaweed contains more than 66 active ingredients and active substances, which can provide vegetables with various nutrients, various amino acids, polysaccharides, vitamins, cytokinins, etc. It can help vegetables establish a strong root system and enhance their absorption and utilization of soil nutrients, water and gases. It can also enlarge stem vascular bundle cells and speed up the transportation of water, nutrients and photosynthetic organic products; it contains cytokinins, which can promote Cell division, delaying cell aging, and effectively improving photosynthetic efficiency. Thus, the yield and quality can be improved; cold resistance, drought resistance and disease resistance can be improved. In addition, alginic acid can also break up soil compaction and delay salinization.
In recent years, new fertilizers containing alginic acid have emerged one after another. Abroad, alginic acid has been used in agriculture for a long time. Seaweeds used as fertilizers are generally large economic algae, such as macroalgae, Ascophyllum nodosum, Trichocystis algae, etc. The development of seaweed fertilizer has gone through three stages: rotten seaweed → seaweed ash (powder) → seaweed extract liquid.
The core substance in seaweed fertilizer is seaweed extract. The main raw materials are selected from natural seaweed. After special biochemical processing, the essence substances in seaweed are extracted, which greatly retains the natural active components and contains a large amount of non-nitrogen-containing organic matter and land plants. Unparalleled potassium, calcium, magnesium, zinc, iodine and other more than 40 mineral elements and rich vitamins, especially seaweed polysaccharides, alginic acid, highly unsaturated fatty acids and a variety of natural plant growth regulators unique to seaweed It has high biological activity and can stimulate the production of non-specific active factors in plants and regulate the balance of endogenous hormones.
After special treatment, the active components in seaweed are in an active state that is easily absorbed by plants. They enter the plant body 2-3 hours after use and have a very fast absorption and conduction speed. Seaweed contains natural plant growth regulators such as auxins, cytokinins, and gibberellins, which have high biological activity. The proportions of various substances are similar to the proportions of various hormones in terrestrial plants.
Alginic acid can reduce the surface tension of water, form a thin film on the surface of plants, increase the contact area, and make it easier for water-soluble substances to enter plant cells through the cell membrane on the surface of stems and leaves, allowing plants to effectively absorb the nutrients in the seaweed extract. , Therefore, if seaweed liquid fertilizer is mixed with pesticides, fungicides and chemical fertilizers, the effect will be better, it can reduce spraying costs and have a synergistic effect on pesticides and chemical fertilizers.
Foreign reports indicate that the alginic acid contained in it naturally has antiviral effects. The raw materials of seaweed fertilizer are selected from natural seaweed, which have good affinity with terrestrial plants, are harmless to humans and livestock, and have no pollution to the environment. It has advantages unmatched by any other fertilizer.
Alginic acid can increase organic matter in the soil directly or through plants. Various beneficial microorganisms in the soil can play a catalyst role in the cycle of plant and microbial metabolites, increasing the biological effectiveness of the soil. The metabolites of soil microorganisms can provide more nutrients to plants. Alginic acid is a natural biological agent that works in harmony with plant and soil ecosystems.
The natural compounds it contains, such as sodium alginate, are natural soil conditioners that can promote the formation of soil aggregate structure, improve the pore space inside the soil, coordinate the proportion of solid, liquid, and gas in the soil, and restore the soil due to overburden and chemical stress. The natural colloid balance lost due to pollution increases soil biological vitality, promotes the release of nutrients, is beneficial to root growth, and improves crop stress resistance.
Five major characteristics of seaweed fertilizer:
- Seaweed fertilizer is more nutritious than traditional fertilizers. After application, crops grow in a balanced manner, have significant yield increase effects, and rarely suffer from nutrient deficiencies.
Seaweed fertilizer uses natural seaweed as the main raw material. It contains a large amount of natural biologically active substances extracted from seaweed that are beneficial to plant growth and development, and mineral nutrients absorbed by seaweed from the ocean and enriched in the body, including seaweed polysaccharides and phenolic polysaccharides. Poly compounds,
Mannitol, betaine, plant growth regulatory substances (cytokinin, gibberellin, auxin, abscisic acid, etc.) and trace elements such as nitrogen, phosphorus, potassium, iron, boron, molybdenum, and iodine. In addition, in order to increase fertilizer efficiency and fertilizer chelation, some products are also dissolved with an appropriate amount of humic acid and an appropriate amount of trace elements, which can meet the nutritional needs of crops at various stages of growth. - Seaweed fertilizer contains a large number of disease-resistant factors and special ingredients, and has dual effects of fertilizer and medicine. The stress and disease resistance of crops is significantly enhanced after application, and foliar spraying can improve the effectiveness of pesticides.
The seaweed polysaccharides and oligosaccharides, mannitol, phenolic polymer compounds, betaine, alginic acid and natural substances contained in seaweed fertilizer have significant antibacterial, antiviral and anthelmintic effects, and truly function as fertilizers. It greatly enhances the cold resistance, drought resistance, disease resistance, lodging resistance, and salt-alkali resistance of crops, and produces strong resistance to diseases, viral diseases, anthrax, downy mildew, gray mold, powdery mildew, and fusarium wilt. In addition, the alginic acid in seaweed fertilizer can reduce the surface tension of water, form a thin film on the surface of plants, increase the contact area, and make it easier for water-soluble substances to enter plant cells through the cell membrane on the surface of stems and leaves, allowing plants to effectively absorb seaweed. Nutrients in the extract. If seaweed fertilizer is mixed with pesticides and fungicides, it has a synergistic effect and can reduce spraying costs. - Seaweed fertilizer contains a large number of highly active ingredients, which are easily absorbed by plants. Crops will grow vigorously after application, which can significantly improve yield and crop quality.
Seaweed polysaccharides, alginic acid, highly unsaturated fatty acids and other substances unique to seaweed have high biological activity and can stimulate the production of non-specific active factors in plants. At the same time, seaweed fertilizer also contains natural plant growth regulators, such as auxins, cytokinins, and gibberellins. The proportions are similar to the proportions of hormones in terrestrial plants, and it has the ability to regulate the balance of endogenous hormones. effect. After crop application, the yield and quality are significantly improved. The yield of leafy vegetables is increased by more than 20%, the yield of grain crops is increased by more than 15%, and the yield of fruit trees is increased by 10% to 30%. At the same time, the number of first-class fruits is increased to more than 80%, which can significantly improve tobacco production. , cotton, flowers and other economic crops, especially for greenhouse vegetable crops, the effect of increasing production and value is very significant. - Seaweed fertilizer is rich in organic matter and slow-release factors. It has a long fertilizer effect and can improve soil microecology, promote roots in living soil and resist repeated cropping.
Seaweed fertilizer can increase organic matter and various beneficial microorganisms in the soil directly or through plants. These microorganisms can act as catalysts in the metabolic cycles of plants and microorganisms, increasing the biological effectiveness of the soil. Metabolites from plants and soil microorganisms provide more nutrients to plants.
At the same time, the chelation system formed by seaweed polysaccharides can slowly release nutrients and extend the fertilizer effect. In addition, the natural compounds it contains, such as sodium alginate, are natural soil conditioners, which can promote the formation of soil aggregate structure, improve the pore space inside the soil, coordinate the proportion of solid, liquid, and gas in the soil, and restore the moisture content caused by excessive soil burden. The natural colloid balance lost due to chemical pollution increases soil biological vitality, promotes the release of nutrients, is beneficial to root growth, and improves crop stress resistance and resistance to repeated cropping. - Seaweed fertilizer is natural, safe and pollution-free.
Traditional chemical fertilizers have a single fertilizer effect and serious pollution. Long-term use will cause damage to the soil structure. Seaweed fertilizer is a natural seaweed extract that has good affinity with terrestrial plants. It is harmless to humans and animals and has no pollution to the environment. It has advantages that cannot be matched by any other chemical fertilizer. It is listed as a special organic food abroad. fertilizer.
Seaweed fertilizer aggregates a variety of active substances in the ocean. It has many advantages such as comprehensive nutrition, disease resistance and increased yield, living soil, and no pollution. It is a good fertilizer that truly conforms to the development direction of modern agriculture.