What Role does Bacterial Fertilizer Play

The main function of bacterial fertilizer is determined by the live bacteria.

Through their own activities, the active bacteria decompose the nutrients in the soil into nutrients that plants can absorb, secrete some substances that are useful for plant growth, and also substances that are left after the effective bacteria die.

Each specific active bacteria has its own main role, not one active bacteria has all of the following roles.

1. The Role of Soil
Plant inorganic state of nutrition is some ions, fertilizer dissolved in water from the molecular state into the ionic state, the plant good absorption, because it is charged, conducive to plant adsorption. The organic state of nutrition is a lot of atoms together to form a large molecule, not easy to be absorbed, the role of bacterial fertilizer is to turn the organic state of nitrogen, phosphorus and potassium into the inorganic state, to facilitate plant absorption.

There are three kinds of bacteria that increase nitrogen, which is the kind that synthesize the nitrogen in the air that plants can absorb.

(1) Rhizobacteria, which invade into the roots of plants and settle in the roots, help plants fix nitrogen, but also need some nutrients from plants to keep themselves alive.
These bacteria are generally more leguminous plants, more specific, that is, more recognized plants, such as soybean rhizobia only recognize soybeans, peanut rhizobia only recognize peanuts.
(If a farmer wants to plant soybeans in a field that has not been planted with soybeans, it will be ineffective if you recommend rhizobia to him.)
Bacteria containing rhizobia can be registered as rhizobia bacteria, if it contains the following two, generally will be registered as nitrogen-fixing bacteria.

(2) Autotrophic nitrogen-fixing bacteria, there is another kind of autotrophic nitrogen-fixing bacteria that live in the soil and do not need the plant to provide nutrients and feed themselves, and the nitrogen-containing nutrients they produce need to wait until they die before they are released. So this kind of bacteria should be applied in advance, maybe 15-20 days, to see the effect.

(3) Autotrophic nitrogen-fixing bacteria, there is another one in between, it only lives in the root surface or cortex, but does not need the plant to provide nutrients, it can also survive in the soil, but the activity is relatively low. United nitrogen fixing bacteria, it likes gram (rice, sugar cane, sorghum) plants together.

Autogenous nitrogen-fixing bacteria, combined nitrogen-fixing bacteria, mixed together to make nitrogen-fixing bacteria, can be used on graminaceae and other crops, also can be used on fruit trees.

2. Effects on Plants
Help plants absorb nutrients, stimulate plant growth, and enhance resistance to adversity.

Mycorrhizal mycorrhizal agents, mainly VA mycorrhizae, are also called from dendritic mycorrhizae. They are also with the plant root system, but unlike rhizobia, they insert their roots into the plant roots and then grow some root hair-like things themselves to assist the plant to absorb nutrients.

It is not particularly recognizable to plants, but can be combined with most plants, and is used more often in fruit trees.

3. Effect on Pests
Prevents pests and increases disease resistance.

Continuous crop will have soil-borne diseases, these germs can live in the soil for 1-2 years or even 10 years and 8 years, heavy crops do not grow well, and this is particularly relevant.

Actinomycetes produce antibiotics to kill microorganisms, which can effectively protect the roots of plants.

Actinomycetes also produce substances that alert the root system to the dangers around it, allowing the plant to produce substances like jasmonic acid to resist harmful bacteria. On the one hand, it kills the harmful bacteria, and on the other hand, it allows the plant to improve its own resistance.