It gives nutrients to the crop for the growth and also so that the food stays in a good quality for our health.
Fertilizers contain many different nutrients that aid in plant growth, and these nutrients are what plants absorb, through osmosis, to increase their speed of growth and quality. When there usually isn't a sufficient amount of nutrients, fertilizers are added to make up for this lack of necessity. The amount and quality of plant growth is called the "crop yield".
E. R. Parker has written: 'Effect of fertilizers on orange yields' -- subject(s): Oranges, Fertilizers 'Effects of fertilizers upon the yields, size and quality of orange fruits' -- subject(s): Oranges, Fertilizers
Crop quality is the quality of crops.
To improve crop production - more bushels per acre.
Fertilizers add nutrients and minerals to the soil so plants can grow.
Clyde R. Johnson has written: 'Crop tailored and soil tailored fertilizers' -- subject(s): Fertilizers
nitrogen
They use Fertilizers and modern machinery
Properly fertilized land causes no water issues at all and provides several times more food then if fertilizers were not used. Without fertilizers the planet could not sustain anywhere near the volume of humans we currently have. Over fertilization with some forms of fertilizers can cause water contamination. Some fertilizers are natural and run off from them is not an issue.
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You must return to the soil the nutrients that the previous crop removed.
The process of fertilizing soil includes crop rotation, addition of humus and adding fertilizers.