There are many types of soil microorganisms, which can be roughly divided into three categories:
(1) active and propagating in the rhizosphere (0.1mm around the root system) of plants, parasitic in plants, and mutually symbiotic microorganisms;
(2) responsible for the circulation of substances in the soil and organic decomposition of microorganisms;
(3) unrecorded microorganisms (accounting for 99% of the total number of soil microorganisms);
What is the effect on the quantity and species of soil microorganisms?
Different types of organic matter are added to the soil, and different types of microorganisms are activated.
Experts believe that when a large amount of organic matter is put into the soil, the microbial species will change greatly in a short time. At this time, it is recommended to leave the soil fallow for more than 3 weeks to ensure the stable balance of microbial species in the soil, and then carry out crop cultivation.
In addition, microorganisms are sensitive to environmental conditions such as temperature, soil pH value and moisture.
Why are rhizosphere microbes so important to crop growth?
1. After the emergence of plants, microorganisms that can mutually coexist with the roots of crops can give full play to their strong resistance to diseases and pests during the growth and development of crops.
2.Root system is the basis of crop growth and development.
3. After the seed germination, the taproot will grow down in the soil, and the capillary roots of fibrous roots will also grow.
4. Roots not only absorb nutrients and water, but also produce secretions that are broken down by rhizosphere microbes and reused.
How to form "soil aggregate structure"? What does it do?
The formation of soil aggregates is closely related to microorganisms. Simply put, soil is made up of tiny round grains of soil that "stick together" to form a clump structure. Microbial metabolites and enzymatic hyphae combine with soil aggregates, and the activities of soil animals such as earthworms in the soil lead to larger aggregates.
Small pellets have better water retention, while large pellets have better air permeability. Then the soil with more developed aggregate structure has better water retention and air permeability, so the soil is more suitable for crop growth. It also shows the necessity of diverse microorganisms.
(it is because of the abundant microorganisms and small animals such as earthworms in the soil that the aggregate structure of the soil can be built and the water and fertility of the soil can be increased)
What kind of soil would be rich in soil organisms?
First, the organic matter will increase and the soil will become darker. The pH value of the soil fluctuates around 6 (suitable for growing crops).
What's more, the increase of soil organisms will promote soil agglomeration, and soil will be more fertile when there is the right amount of air, water and nutrients in the soil.
It is urgent to replenish soil microorganisms, improve the organic matter content of crops and improve the growing environment of crops.
Soil improvement is imperative!