Which fish protein fertilizer is better in China at present?

At present, there should be hundreds of fertilizer enterprises making fish protein in China, mainly by flushing and foliar spraying. But most of them are the product of hype concept. To judge the quality of fish protein, on the one hand, it depends on the content of fish protein, on the other hand, it depends on the production process.

The protein content of real fish is basically high in coastal fishing areas, mainly concentrated in Shandong and Zhejiang. For example, Zhoushan Yufeng, Zhejiang Debon, Rongcheng Hongde Ocean and so on. The fish protein content of these families is relatively high.

From personal experience, the overall effect of fish protein in Zhoushan Yufeng is obvious. Their family has its own raw material production line, and Zhoushan is the largest fishing ground in China. In my own judgment, besides the high content of fish protein, it should also be related to the enzymatic hydrolysis process they use, and the enzymatic hydrolysis process should be the most effective processing process to maintain molecular activity. Two or three days after spraying cucumber leaves, the color of the page basically changed, and the roots grew after spraying. Pure personal experience, for reference only!