Traditional Culture Encyclopedia - Photography and portraiture - Xiang tang photography
Xiang tang photography
The role of aquatic plants in crab ponds. Part of the source of nutrition. Common aquatic plants in crab ponds are Elodea and Rhododendron. These two kinds of grass are fresh, tender and crisp. The stems and leaves of aquatic plants used in crab ponds contain a small amount of nutrients such as protein, fat and vitamins. Because aquatic plants contain a certain amount of crude fiber, it can promote the digestion and absorption of various foods by river crabs.
A residence or hiding place. River crabs can't stay in the water for a long time. Especially at night, river crabs will crawl or rest on water plants, so water plants have become the habitat of river crabs. Crabs often attach themselves to aquatic plants when they shell, and the shelled crabs have an obvious weak period. At this time, aquatic plants will provide a safe hiding place for crabs, which can effectively prevent similar attacks and other biological injuries and ensure the fragile period of crabs after they are safely shelled. Farmers like to choose compound fertilizer as fertilizer when planting grass, so that the stems and leaves of aquatic plants will grow wildly, and aquatic plants will easily surface to bloom in advance, so manual mowing is needed. So the latest technology is stem and leaf root control. The latest technology is a product containing strong root factors such as trace elements and biological peptides, which can make the roots of aquatic plants develop and promote the resistance of aquatic plants, especially to prevent their aging speed in high temperature weather.
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