By Ryan Keeney
The abiotic factors that our kohlrabi plants depend on include the amount of sunlight they get, the amount of water they get, as well as the soil they are planted in. Currently, the plants are in a position where they can receive lots of sunlight, and they are watered regularly. Biotic factors that may affect our plants include competition from other plants, including unwanted weeds, as well as insects that may cause damage to the plants.
We know that the plants are in competition with each other because they all require the same things, water, sunlight, and nutrients from the soil. Since the plants are growing close to each other, they are naturally competing for these resources. Our plants are competing with each other, as well as other lab groups' plants. They are also competing with weeds that have grown in the garden which were not planted by humans.
Determining which plants are winners or losers of this struggle for resources is based on which plant is the most successful. Success, however, is sometimes difficult to determine. It is sometimes difficult to define what success is. A plant may not grow as large as the other, but it may spread more seeds and have a higher chance of reproducing than the other. Sometimes, a winner can not be determined at all.
Some interactions which the kohlrabi plants have besides competition include the symbiosis between the roots and the bacteria in the soil, as well as parasitism with the local insects.
Slowly, the garden is becoming covered in plants, where there was once only the remains of dead organisms. This indicates that secondary succession is taking place, as there was already soil in the garden. An ecosystem is slowly developing in the garden where there was once only soil.
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