The preparation of soil is the first step before growing a crop. One of the most important tasks in agriculture is to turn the soil and loosen it. This allows the roots to penetrate deep into the soil.
The loose soil allows the roots to breathe easily even when they go deep into the soil. The loosened soil helps in the growth of earthworms and microbes present in the soil. These organisms are friends of the farmer since they further turn and loosen the soil and add humus to it.
Soil contains minerals, water, air and some living organisms. In addition, dead plants and animals get decomposed by soil organisms. In this way, various nutrients held in the dead organisms are released back into the soil. These nutrients are again absorbed by plants.
Since only a few centimeters of the top layer of soil supports plant growth, turning and loosening of soil brings the nutrient-rich deep soil to the top so that plants can use these nutrients.
The process of loosening and turning of the soil is called tilling or ploughing.
This can be done by using plough.
Then levelling of soil is done with the help of leveller.
