Duckweed is a type of aquatic plant, also known as water lentils, that can be found growing in lakes, streams, and ponds all over the world. These plants are small and green, and can grow in vast colonies. Duckweed is a highly nutritious food source for waterfowl, and is also used in aquaculture and aquariums. But what do duckweed feed off of in order to survive?
Light for Photosynthesis
Like all plants, duckweed needs light energy to survive. The process of photosynthesis is used to convert light energy into sugar, which the plant uses for energy. Duckweed grows best in shallow, still or slowly moving water, so that it can receive enough light for photosynthesis. Without light, the duckweed will not be able to survive.
Carbon Dioxide
Carbon dioxide is another important factor for duckweed growth. The plant uses carbon dioxide to produce the sugar it needs to grow. Duckweed has adapted to survive in low-oxygen environments, and can absorb carbon dioxide from the air as well as from the water. The more carbon dioxide the duckweed can absorb, the faster it will grow.
Nutrients from the Water
Like all plants, duckweed needs nutrients to survive. These nutrients come from the water, and include nitrogen, phosphorus, and potassium, as well as trace elements such as iron, boron, and zinc. Duckweed is a fast-growing plant, and can often out-compete other plants for these nutrients in the water. When there are not enough nutrients in the water, the duckweed will not be able to survive.
Organic Matter
Organic matter is another important source of food for duckweed. This includes dead plant material, as well as small organisms such as bacteria and protozoa. The duckweed will absorb these organic materials, and use them for energy and growth. Duckweed is known for its ability to quickly absorb organic matter, and can often out-compete other plants for these resources.
Oxygen from the Water
Oxygen is also needed by duckweed for respiration. The plant will absorb oxygen from the water, and use it to convert the sugar produced during photosynthesis into energy. Without enough oxygen in the water, the duckweed will not be able to survive. It is important to keep the water well-oxygenated when growing duckweed.
Temperature and pH
Duckweed also needs the right temperature and pH in order to survive. The ideal temperature range is between 70-85°F (21-29°C), and the ideal pH range is between 6.5-7.5. If the temperature or pH is outside of this range, the duckweed will not be able to grow properly. It is important to make sure the water is at the right temperature and pH when growing duckweed.
Conclusion
Duckweed is a highly nutritious food source for waterfowl, and is also used in aquaculture and aquariums. In order to survive, duckweed needs light for photosynthesis, carbon dioxide, nutrients from the water, organic matter, oxygen from the water, and the right temperature and pH. Without these things, the duckweed will not be able to survive.