Humus is added to loamy soil for the better growth of plants.

Humus is a type of organic matter that is added to soil to improve its fertility and structure. It is formed from the decomposition of plant and animal materials, such as leaves, grass, and manure. Adding humus to loamy soil is beneficial for several reasons:

1. Improved Soil Structure:
- Humus helps to create a crumbly texture in loamy soil, which improves its drainage and aeration.
- This allows plant roots to penetrate the soil more easily and access nutrients and water.

2. Retention of Moisture:
- Humus has the ability to retain moisture in the soil.
- It acts like a sponge, absorbing water and preventing it from quickly draining away.
- This is particularly important for loamy soil, which has a balanced mixture of sand, silt, and clay particles that can promote good drainage but may also allow water to pass through too quickly.

3. Nutrient Availability:
- Humus is rich in nutrients, such as nitrogen, phosphorus, and potassium, which are essential for plant growth.
- As humus decomposes, these nutrients are released into the soil and become available for plants to absorb through their roots.
- This helps to ensure that plants have a constant supply of nutrients for healthy growth.

4. Microbial Activity:
- Humus provides a favorable environment for beneficial soil microorganisms, such as bacteria and fungi.
- These microorganisms break down organic matter further, releasing nutrients and improving soil fertility.
- They also help to suppress harmful pathogens and diseases that can affect plant health.

In conclusion, adding humus to loamy soil improves its structure, moisture retention, nutrient availability, and microbial activity. This creates a more favorable growing environment for plants, promoting their better growth and overall health.

Humans