what are the four advantages of soil containing plenty of humus?
Answers
Answer:
Humus is a black, organic residue that formed in soil as plant and animal waste decays. Plants shed leaves, twigs, and other detritus to the ground, which piles up.
Explanation:
The advantages of soil containing humus are as follows:
1. Biological function: Organic matter contains 58% carbon, which is necessary for microbial activity when combined with other nutrients. Excreta produced by microorganisms serve as binding agents for soil particles, enhancing aggregate stability, water infiltration, and water storage capacity.
2. Nutrient Supply: Organic matter is a crucial source of nutrition for plants and other living things. For each percentage of organic matter in the top six inches of medium-textured soil, nitrogen, phosphorous, and sulphur are released per acre. Organic matter particles have cation exchange capacity (CEC), which attracts and holds positively charged ions such as calcium, potassium, magnesium, and ammonium-nitrogen.
3. Soil Structure: The addition of organic matter enhances soil structure by causing soil particles to bond and form stable soil aggregates. Improved soil structure boosts water infiltration into the soil, which increases the soil's capacity to absorb and hold water and lowers the risk of soil surface crusting.
4. Water holding capacity: One key advantage of organic matter's water-holding capacity is the fact that it will release the bulk of the water it absorbs.
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