In the Jiagu Laboratory, a 2,000-liter seawater tank, clumps of grass-green single or branched algae float.

Algae is one of the oldest species on Earth and is the ancestor of life on Earth.

Qi Zheng observed carefully for a while, and asked, "This is Hu Moss?"

Chen Jianzhang on the side corrected: "To be precise, this is a mutated moss. ”

It is a kind of macroalgae of the phylum Chlorella, which belongs to the algae of the genus Ulva spp., which is non-toxic and edible. The body of bryophytes is bright green or light green, and consists of a single layer of cells composed of tubular branches, which are easy to float and grow.

In Qi Zheng's impression, what is associated with "moss" is "Green Tide".

On the eve of the Olympic regatta, a large area of green tide broke out in the Yellow Sea, and a large number of floating green algae gathered along the coast of Qingdao.

In order to eliminate the threat of green tide, the Qingdao municipal government invested a lot of manpower and material resources to salvage and remove millions of tons of green algae before removing the moss and ensuring the normal holding of the Olympic regatta. But since then, the green tide has come every summer, making the Yellow Sea a big "green hat".

"Where is this mutation?" Qi Zheng asked curiously.

Chen Jianzhang introduced with great interest: "It has a stronger adaptability to the environment than ordinary moss, does not require high temperature, has a longer growing season, and can be said to grow all year round." ”

"It is an autotrophic plant that produces organic matter and oxygen through photosynthesis and has strong vitality in nature. Moss does not require strong light and grows well in continuous light. ”

"Through experiments, it was determined that 20 degrees Celsius to 30 degrees Celsius is the suitable temperature for the growth of Mutant Moss. In this range, the higher the temperature, the more vigorous the metabolism in the body and the faster the growth rate. In the case of adequate nutrition, it can grow wildly in a short period of time. ”

"The growth period of this mutated moss is about a week longer than that of ordinary moss, that is, about 22 days, so the bioaccumulation is higher than that of ordinary moss. Best of all, it doesn't have a high salinity, making it an excellent ingredient as an organic fertilizer for seaweed. ”

Qi Zheng listened very carefully, even if he had two lifetimes of experience, he only heard of seaweed fertilizer, but he didn't know the truth. Anyway, it's a very cutting-edge fertilizer application.

Chen continued: "Our test results show that it is rich in protein and polysaccharides such as cellulose and pectin, which can be used to produce a variety of products such as feed powder, food additives and seaweed fertilizer. If its high-value products can be further developed, its polysaccharide efficacy can be explored and used as pharmaceutical and health care raw materials, the value and benefit level of its products will be greatly improved. ”

Then he said in a somewhat regretful tone: "However, we have not yet carried out research on in-depth development, so we can only apply it to the production of green manure first." However, it is just enough to meet the needs of the group's current development. ”

Qi Zheng asked, "So you have developed the technology to produce seaweed fertilizer?"

Chen Jianzhang nodded as a matter of course: "In the world, it has become a consensus to use moss as a raw material for organic fertilizer, and Erlan, the United Kingdom, South Africa, New Zealand and other countries have established seaweed processing plants to produce seaweed organic fertilizer or feed. ”

"The production methods of seaweed fertilizer can generally be divided into chemical hydrolysis method, physical extraction method, biological fermentation method, etc. At present, most manufacturers at home and abroad mainly use chemical hydrolysis to produce seaweed fertilizer, but its biggest disadvantage is that the strong alkali and high temperature destroy the activity of seaweed endogenous substances. ”

"The biological fermentation method is to biodegrade the algae body through the life activities of microorganisms, mainly with the help of extracellular enzymes and organic acids secreted by microorganisms, release the living substances in the seaweed cells, and bioprocess the released living substances to produce more kinds of living substances, so as to enhance the fertilizer efficiency of seaweed fertilizer. ”

"We applied the biological fermentation method to develop a highly efficient fermentation culture......

Looking at Chen Jianzhang's "reserved" appearance of "no way, we are so powerful", Qi Zheng wanted to revoke the spirit array in the microbiology laboratory for a while, to see if he could still be stunned?

Think about it or endure it, even if there is a plug-in, it is good that the results are continuous, and you are qualified to be proud.

"What is the effect of seaweed fertilizer?" Qi Zheng asked, turning his head.

Chen Jianzhang said happily: "Extraordinarily good. ”

"Let's put it this way, it is environmentally friendly: seaweed fertilizer is a natural seaweed extract, which is not only harmless to humans and animals, but also has no pollution to the environment, and the special ingredient in seaweed seaweed polysaccharides can not only chelate heavy metal ions, but also increase soil permeability, this soil air conditioning effect makes the soil not easy to be eroded and ......lost by wind, water, etc."

"It is easy to absorb: the active ingredients of seaweed fertilizer are processed by special technology to become small molecules that are easily absorbed and conducted by plants, which are easily soluble in water, and can be quickly absorbed, conducted and utilized by plants within a few hours after use......"

"It improves quality: domestic and international practice has confirmed that seaweed fertilizer can significantly improve the quality of agricultural products and increase their commodity value. For example, it can improve the oil content of oil crops, and improve the sweetness, flavor and coloration of fruits......"

"As a biofertilizer that combines nutrition and conditioning, it has an effect that other fertilizers can't: it makes crops more resistant to pests and diseases. ”

"Seaweed fertilizer can improve the vitality and immunity of crops, inhibit the harm of pests and diseases, and have a significant inhibitory recovery effect on viruses, and can also reduce the harm of drought, waterlogging, low temperature, salinity and other adversities to crops, and benefit the post-disaster recovery ...... crops."

Tut-tut, if he didn't know Chen Jianzhang's personality, Qi Zheng would definitely think that he was blowing through the sky.

Qi Zheng couldn't help but ask, "Okay, I believe that seaweed fertilizer has many advantages as you mentioned. But in general, how low will the cost of such a product be?"

Chen Jianzhang was not surprised: "Believe me, if you have seen the growth and yield of mutant moss, you will have confidence in the low cost of producing seaweed fertilizer." ”

"In recent years, isn't it because of the serious eutrophication of the water body in China's coastal waters that a suitable water environment for the abnormal reproduction of algae has been formed, which has led to the frequent occurrence of red tides in recent years? ”

Qi Zheng hehe: "...... You have a point, and I only have one last question: aren't you afraid that this mutated moss will flow out and cause a green tide?"

Although before this year, there has not been a large-scale "green wave" in China. However, the green tide caused by the large-scale proliferation and growth of macrochlorophytes such as Turbidium moss is a common marine ecological phenomenon in international coastal areas. In Europe, the "green wave" has been rampant for almost 30 years. Roskilde Bay in Denmark, the Wiess Sea Lagoon in the Netherlands, and Venice in Italy have all been hit by large-scale attacks by green algae represented by moss and ulva.

I saw Chen Jianzhang smiling deceitfully: "Don't be afraid! Because, this kind of mutated moss is controllable in terms of reproduction!"

......

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