Answer :
Soil with dark and light colors or even having different color shows in particular soil show their organic matter content, characteristics of drainage, and degree of weathering which helps in giving support to the plant growth accordingly.
Soil with dark color contains a high amount of humus and high organic matter content which helps in stabilizing soil aggregates by holding soil particles together. The decomposition of organic matter due to the activity of microbes leads to the release of nutrients for the growth of plants.
Soil with light color can be with any texture depending upon their drainage characteristics, parenting rocks, and pattern of weathering apart from just a color as the presence of stones, texture plays important role in determining drainage properties of soil which helps plants to breathe freely preventing stunting the plant.
Therefore, the relationship between soil color and the ability to support the growth of plants is passive in nature.
- Black: contains humus
- Red: free draining and contains iron
- yellow: restrictive drainage and moist.
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