how do microbes help to increase soil fertility

1. What are microbes and how do they contribute to soil fertility?

Microbes are microscopic organisms, including bacteria, fungi, and archaea, that play a vital role in increasing soil fertility. They contribute to soil fertility through various mechanisms such as nutrient cycling, organic matter decomposition, nitrogen fixation, and disease suppression.

Microbes help break down organic matter, such as dead plant and animal material, into simpler compounds that plants can readily absorb. This decomposition process releases nutrients like nitrogen, phosphorus, and potassium back into the soil, making them available for plant uptake. Additionally, microbes enhance nutrient availability by solubilizing minerals and converting them into forms that plants can utilize.

Certain microbes, like nitrogen-fixing bacteria, have the unique ability to convert atmospheric nitrogen into plant-available forms. This process, known as nitrogen fixation, increases the soil’s nitrogen content, which is essential for plant growth and overall soil fertility.

Moreover, microbes also play a crucial role in disease suppression. They compete with harmful pathogens for resources, produce antibiotics or toxins that inhibit pathogen growth, and stimulate the plant’s natural defense mechanisms. By preventing or reducing the impact of diseases, microbes help to maintain a healthy soil environment that supports plant growth and enhances soil fertility.

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