The soil component which contributes most nitrogen to plants is humus.
What is a soil?
Soil is defined as the topmost layer of the earth crust which provides support and nutrients for plants.
There are different types of soil:
- Sandy soil
- Clay soil
- Loamy soil
The soil organic materials are being transformed into humus which feeds all the organisms that lives in the soil. It gives the the soil a very healthy life. In order words, humus soil allows organisms in the soil to feed and reproduce.
Learn more about soil:
https://brainly.com/question/25761065
