For plants to grow on mars the soil requires many different nutrients such as calcium, magnesium, sulphur, nitrogen, phosphorus, potassium as well as small amounts of iron, boron, manganese moleybdenum, chlorine, copper and zin.
The soil on earth has 50% air and water, 45% mineral matter and 5% organic matter. However, on mars, the soil has 98% mineral matter and 2% of air and water.
The soil on mars has mostly all the nutrients plants need to survive however, there are still some challenges.
One of the challenges include the lack of organic matter. Organic matter contains living organisms, decomposed organic matter and humus.
We would need to transport humus and decomposed organic matter from earth to mars to help with the lack of organic matter.
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