Natural plant selective algistat and preparation method thereof

Abstract

The invention provides a natural plant selective algistat. The natural plant selective algistat is composed of the following components in percent by mass: 70%-20% of wedelia chinensis, 5%-20% of acorus calamus, 5%-10% of sagittaria sagittifolia, 0%-10% of composite effective microbial community, and 2%-10% of composite bio-enzyme, wherein the composite effective microbial community is composed of bacillus powder and nitrobacterium powder in mass ratio of 1.5 to 1, the composite bio-enzyme is composed of cellulase and phytase in mass ratio of 1.3 to 1. The invention discloses a preparation method of the algistat at the same time. The algistat provided by the invention is capable of selectively inhibiting harmful algae such as blue-green algae, and capable of avoiding harming of useful algae and useful microorganisms in a water body to a relatively great degree while the blue-green algae are inhibited, and capable of relieving the eutrophication of the water body to a certain degree, and is easy to store; the algistat is easy to operate and is suitable for large-scale application.

Description

technical field [0001] The invention relates to a microecological regulating preparation and a preparation method thereof, in particular to a natural plant matter selective algae inhibitor and a preparation method thereof. Background technique [0002] In recent years, with the increase of human activities, the eutrophication of lakes, reservoirs and rivers has become increasingly serious, which has changed the ecological structure and function of water bodies, resulting in the abnormal reproduction and growth of algae, especially cyanobacteria, and the phenomenon of cyanobacteria blooms. Large-scale algal blooms are known as "green tides". Green tides cause water quality to deteriorate, and in severe cases deplete the oxygen in the water and cause the death of fish. [0003] Therefore, effectively inhibiting the excessive growth of planktonic algae in eutrophic water bodies and preventing the occurrence of algae blooms has become a research hotspot and frontier in the fiel...

AI Technical Summary

Problems solved by technology

Among the physical methods, there are mainly direct filtration, mechanical removal and microfiltration to remove algae, but there are defects of low removal rate; chemical methods such as throwing oxidants or powders may have a negative impact on the water body; and biological methods, especially the use of Plant allelopathy inhibition of algae is considered to be a new type of biological algae inhibition technology, which has attracted much attention due to its high efficiency and good ecological safety.

[0004] However, the existing various algae inhibitors cannot selectively inhibit the harmful algae of cyanobacteria, and also damage the beneficial algae and beneficial microorganisms in the water body to a large extent when inhibiting cyanobacteria, and the algae inhibitory effect and effective time are not the same. not ideal