OBJECTIVE FORESTRY

Detailed explanation-1: -Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter.

Detailed explanation-2: -Humus:-Humus is a substance made from dead leaves and plants, that put into the ground to help plants grow. Humus is partially decayed organic matter. Function of humus: It makes soil porous, thereby increasing its air and water holding capacity. It is rich in nutrients (e.g., minerals) that promote plant growth.

Detailed explanation-3: -Humus contains important nutrients needed for plant growth, including nitrogen. And it’s not just that humus contains nitrogen, it provides it in a form that is highly usable for plants. Humus also gives soil the necessary structure and a crumbly and loose texture so oxygen can get in and reach the plant roots.