In 2023, Dora Agri is committed to the development of fish protein series fertilizers, and the Dora test team started a new round of experiments to explore the impact of fish protein on soil.
Soil microorganisms play an important role in soil material and energy conversion. Soil microbial biomass can not only reflect the number of microorganisms involved in soil energy regulation, nutrient cycling and organic matter transformation.
Moreover, it can reflect that the change of soil properties caused by human action or other disturbance factors is extremely sensitive to the change of soil environment. Soil enzyme activity can reflect the intensity and direction of various microbial biochemical processes in soil, and is an important index for soil fertility evaluation.
Conclusion
After the fish protein organic liquid fertilizer is applied to the soil, the soil pH value remains neutral, which is conducive to its application in the protected cultivation soil and can prevent soil acidification.
Fish protein organic liquid fertilizer enhanced the activity of phosphatase, urease and protease in the soil. Moreover, the enzyme activities were significantly and positively correlated with soil nutrients. It indicates that the application of fish protein organic liquid fertilizer to the soil can improve the soil enzyme activity, thus improving soil fertility.
The fish protein organic liquid fertilizer provided rich energy material for soil microorganisms and facilitated their activity, thus promoting the decomposition and transformation of soil organic matter and the release of fast-acting nutrients, which in turn improved soil quality and provided a good environment for crop growth.
Soil enzyme activity and soil microbial biomass increased with the increase of fertilizer addition, and the highest enzyme activity and soil microbial biomass were observed in each treatment from 14 to 21 days of incubation.