One of my topics was lemon in compost. I learned that lemon can be added to the compost and this helps the compost in that it manages the pH in the compost, gets ride of the color, and increases the speed of the composting. However, there has to be limited amount of lemon in the compost. There shouldn't be more than one lemon skin in one layer of compost (a layer is a proportion of food waste and yard waste from one week's collection).
Next, I researched the different things that can be added to the compost bin. I was surprised to learn that you can add unique things like almost all farm animals' manure, soy milk, and even urine. This was very intriguing and I hope in my compost I can start to add some more unique wastes!
My next topic was the comparison of plants with compost and plants without compost. I sowed marigold seeds in three different types of soils: regular, organic, and compost.
My observations:
- regular soil- very slow growth
- organic soil- all seeds did not germinate; growth was relatively faster than regular soil.
- compost - all seeds germinated as fast as organic soil, and the plant was healthier and taller.
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