This product uses fresh kelp as raw material and is refined by unique patented enzymatic hydrolysis technology. Calcium and magnesium are specially added to chelate with seaweed fertilizer to make nutrients easier to absorb, which can effectively prevent calcium deficiency symptoms such as fruit painstakingness, internal rot, bad core, improve the appearance of fruits and extend the shelf life. At the same time, it can also enhance the photosynthesis of plant leaves, delay leaf aging, and improve crop yield. At the same time, the kelp puree in the product has smaller molecules after enzymatic hydrolysis, is easy to penetrate, and has the function of natural moisturizer. It is still applicable after fruit bagging.