What is seaweed fertilizer?

What is seaweed fertilizer? What are the characteristics of seaweed fertilizer? What are the effects of seaweed fertilizer on crops? Please also ask netizens to help introduce seaweed fertilizer, which mainly refers to natural household organic fertilizer made of active components from marine algae, and farmers call it seaweed plant growth agent, seaweed essence, seaweed ash and other names. Seaweed fertilizer is widely used in foliar fertilizer, base fertilization, flushing fertilizer, organic-inorganic compound fertilizer, rooting agent, seed dressing agent, special fertilizer for flowers, etc., so the planting network collates the characteristics of seaweed fertilizer and its effect on crops, the following detailed list for netizens' reference. The characteristics of seaweed fertilizer: 1. Seaweed fertilizer is rich in nutrition: because seaweed fertilizer is made from natural brown algae or kelp, seaweed fertilizer contains a lot of non-nitrogenous organic compounds. Contains potassium, sodium, calcium, magnesium, manganese, molybdenum, iron, zinc, boron, copper, iodine and other minerals and rich vitamins that can not be matched by landing plants. Moreover, seaweed fertilizer can stimulate plant non-specific active factors and regulate the balance of endogenous elements, increase crop root activity, improve root nutrient absorption capacity, and promote crop growth and development. Special point 2, seaweed fertilizer is easy to be absorbed by crops: because the active components in seaweed fertilizer are easily absorbed by crops after special treatment, they can enter the plant within 2-3 hours after applying seaweed fertilizer, and have a fast absorption and conduction velocity. Alginic acid in seaweed fertilizer can reduce the surface tension of water, form a thin film on the plant surface, and increase the contact area, and the water-soluble substances can easily enter the plant cells through the cell membrane on the stem and leaf surface. enable plants to effectively absorb nutrients in seaweed extract. Third, seaweed fertilizer has a certain disease prevention effect: because seaweed fertilizer contains special strains to control crop diseases, it can effectively inhibit and reduce the number of diseased and miscellaneous bacteria in soil, can cure bacteria, and increase the number of beneficial bacteria in soil. improve the soil micro-ecological environment, and have a significant effect on the control of wilt, yellow wilt, root rot, virus and other dead trees caused by continuous cropping of cash crops. Moreover, the components contained in seaweed fertilizer have antibacterial and antiviral effects, and seaweed fertilizer has a certain driving effect on aphids and root-knot nematodes. Seaweed fertilizer can improve the soil: seaweed fertilizer is a natural biological agent that directly increases soil organic matter or through plants and activates various microorganisms in the soil. At the same time, the natural compounds contained in seaweed fertilizer can promote the formation of soil aggregate structure, improve soil pore space, restore colloid balance lost due to heavy soil burden and chemical pollution, and increase soil biological activity and release rate of available nutrients. It is beneficial to the growth of crop roots and improve the ability of drought, cold and flood resistance of crops. Special point 5, seaweed fertilizer is harmless: because the main raw materials of seaweed fertilizer are natural algae and high-quality strains, they are produced through advanced biochemical extraction technology and deep liquid fermentation, and no hormones are added in the whole production process. And seaweed fertilizer can not only promote crop growth, the beneficial strains in seaweed fertilizer can also degrade toxic substances in soil, but also inhibit crops' absorption of nitrite and other harmful substances, so seaweed fertilizer is non-toxic and harmless to human beings and animals, and has no pollution to the environment. The efficacy of seaweed fertilizer on crops: first, seaweed fertilizer can regulate the physiological metabolism of crops, improve the rate of flowering and fruit setting, and make crops blossom and bear fruit early. It can usually be 5 to 7 days in advance. Second, seaweed fertilizer can improve crop quality, make good fruit coloring, less abnormal fruit, good taste, no fruit cracking, early ripening, storage and transportation resistance; seaweed fertilizer can make leafy leaves bright green, shiny, less fiber, crisp and tender; seaweed fertilizer can make root vegetables smooth and neat in shape. Efficacy 3. Seaweed fertilizer can increase the stress resistance of crops and obviously promote the growth of crops, and the range of yield increase is generally about 10%. Seaweed fertilizer can effectively improve crop root development, stimulate crop cell activity, enhance photosynthesis, improve crop cold and drought resistance, and has obvious pre-control effect on aphids, Botrytis cinerea and mosaic disease. Efficacy 4. Seaweed fertilizer can promote crop rooting and sprouting, make weak seedlings strong, and quickly restore stiff seedlings, yellow leaves, rolled leaves, fallen leaves and so on. Efficacy 5. Seaweed fertilizer can improve soil, improve soil fertility, promote crop root development, and effectively prevent the occurrence of soil-borne diseases. What are the advantages of bio-organic fertilizer and what is humic acid?