Compared with other mature agricultural fertilizers, seaweed fertilizer has a smaller overall scale, lower industry barriers, and uneven product quality. So when choosing seaweed fertilizer, growers must learn to distinguish between authenticity and quality. Let's continue to look at how to choose high-quality seaweed fertilizer!
High quality seaweed fertilizer selection method
1. Look at the brand and choose the manufacturer
At present, many enterprises purchase sodium alginate and other chemical raw materials to make alginate. At present, there is no industry standard for alginate fertilizer. When the review committee detects that the product contains alginate, it can pass. Therefore, many enterprises use this method to muddle through.
2. Look at the raw materials
At present, some so-called seaweed fertilizers in the market only cater to market demand and hype up the concept of seaweed. seaweed is a highly regional resource, and due to resource limitations, some enterprises do not use seaweed in production. Even if some production enterprises do use seaweed, there are many types and grades of seaweed (kelp, Enteromorpha, Sargassum, etc.), different seaweed or different parts of the same seaweed The content of nutrients, natural active substances, and antimicrobial substances collected in different seasons varies.
3. Looking at technology
The core technology of seaweed fertilizer production is the extraction process of seaweed active substances, and different extraction processes directly affect the extraction rate, activity, and efficacy of effective ingredients. At present, there are three main methods for the digestion of seaweed algae internationally: biological enzymatic hydrolysis, physical methods, and chemical methods. A better method is to use enzymatic hydrolysis extraction to preserve the activity of endogenous substances to a greater extent. However, due to the high cost of biological enzymes and the complexity of enzymatic hydrolysis processes, only a few companies in China currently adopt enzymatic extraction method; Secondly, the physical method; But currently, there are only a few domestic enterprises that truly master physical purification technology; The worse is chemical extraction with strong acids or bases, which can disrupt the activity of endogenous substances in seaweed. Relying on the technological advantages of the Beinong Science and Technology Park's technical expert team, the Beinong Alliance has developed seaweed extract essential oil, seaweed essence, seaweed acid solution, seaweed foliar fertilizer, seaweed bacterial fertilizer, organic water-soluble fertilizer, and seaweed compound fertilizer, which have been highly praised by users.
4. Look at the color and smell the smell
The pure seaweed extract is a black brown oily liquid, so the processed seaweed fertilizer is also black brown; The seaweed fertilizer produced using composite biological enzymatic hydrolysis technology has a light seaweed odor and no odor, while low-quality or counterfeit seaweed fertilizer has an unpleasant odor.
5. See the effect
The fertilizer efficiency of seaweed fertilizer produced using composite biological enzyme hydrolysis technology is relatively mild, and it takes 10-15 days to show its effectiveness on the appearance of the crop. Therefore, products that quickly become effective when applied to the crop are not real seaweed fertilizer, and some low-quality or counterfeit seaweed fertilizers with faster effects even have hormones added.
