Water chestnut grows in ponds because water chestnut is an aquatic plant.

The roots of water chestnut grow in the mud and like water, while the leaves float in the water. It is usually planted in wet mud, such as common swamps or ponds, and is native to warm areas in Asia and Europe.

The water chestnut is native to warm areas of Europe and Asia. But only China and India have domesticated and cultivated it. Water chestnut can be found in most waters in China. It is cultivated artificially in the middle and upper reaches of the Yangtze River in southern Shaanxi, Anhui, Jiangsu, Hunan, Jiangxi, Zhejiang, Fujian, Guangdong, Taiwan, etc. There are more wild water chestnuts in lakes, rivers and other waters in Shandong, Hebei, Henan and other places. It is also cultivated in Russia, Japan, Vietnam, Laos, etc.

Extended information on water chestnut planting

The appropriate time for local water chestnut planting is generally before and after the Qingming Festival, when the water temperature is stable above 12°C. The methods can be divided into two types: direct seeding and seedling transplanting. . Direct seeding is suitable for river ponds with a water depth of 2-3m and fertile subsoil. When the water chestnut germs grow 1-2cm, scatter the water chestnut seeds evenly in the water. Before sowing, pay attention to clearing aquatic plants, moss and wild water chestnuts in the river pond. The seed amount per mu is generally 10kg. For river ponds with poor fertility, the seed amount can be increased appropriately. For river ponds with large water surfaces and deep water, seedling transplanting can be used.

Choose a river pond with fertile bottom soil and shallow water. Before sowing, dry the water to harden the topsoil, and apply enough farmyard manure as base fertilizer; put shallow water after planting, and then gradually deepen the water layer as the seedling age increases. The seed amount per mu is about 60kg, and the transplanting water surface can be 5-6 acres.

The seedlings are about 60 days old, have 10 top leaves, have a rhombus disk of 15cm, and have 2 to 3 branches. When stocking, tie 10 plants into a bunch with a straw rope and gradually insert them into the bottom of the water. If the density of water chestnuts is too high after the water chestnuts grow out of the water, artificial thinning and even seedlings can be used to prevent the water chestnuts from sealing the water surface early and causing a small opening, which affects the yield.

For the above content, refer to Baidu Encyclopedia - Water chestnut (Rhombus plant of the family Rhombaceae)