Question 1: Where do water chestnuts grow? In lakes and ponds

Question 2: In which season do water chestnuts grow? Water chestnut, Rhombaceae, Rhombus genus. Also known as water chestnut, it is an annual aquatic plant. It blooms in late summer and early autumn. After the flowers are fertilized, they are submerged in the water and grow into fruits. Autumn is the season when water chestnuts are abundant. The origin of water chestnuts is in Taiwan. It is now mostly produced in southern China.

Question 3: Where does water chestnut grow? Picture: Water chestnut, also known as water chestnut and water chestnut, is the fruit of the annual herbaceous aquatic plant water chestnut. Growing in lakes, water chestnuts are most likely to form arcs when they fall in the mud. There are wild water chestnuts and domestic water chestnuts.

Question 4: Picture of where does water chestnut grow? Water chestnut, also known as water chestnut and water chestnut, is the fruit of the annual herbaceous aquatic plant water chestnut. It grows in lakes and grows most easily when water chestnuts fall into the mud. There are wild water chestnuts and domestic water chestnuts.

Question 5: How does water chestnut grow? It is an aquatic plant. It is cultivated or wild in all provinces of southern China. Its pulp is edible, and its tender stems can be used as vegetables. The fruit has horns, commonly known as water chestnuts. Growing in the lake, the water chestnut vine has green leaves, purple-red stems and bright yellow flowers.

Water chestnut is an annual herbaceous aquatic plant, also known as "water peanut". The fruit "water chestnut" is a nut that hangs in the water under dense leaves. The whole plant must be picked up and turned over before it can be seen. Usually after spring enters February, nurseries are set up and seedlings are intensively cultivated. In early summer, after the first rice harvest from the end of May to early June, the rice fields are prepared and built with banks, water is introduced into the fields, and water chestnut seedlings are transplanted. .

Water chestnuts are available in cyan, red and purple. They have crispy skin and beautiful flesh. They are considered a good fruit and can also be used as food. Generally, it is eaten after steaming or boiling, or dried and chopped into fine particles. It can also be eaten as porridge.

Question 6: How to pick water chestnuts? On which part of the plant do water chestnuts grow? How to arrange? 5 points: Pull the water chestnut floating leaves out of the water. The water chestnuts grow under the floating leaves. You can tell at a glance.

Question 7: How do water chestnuts grow? Water chestnuts are generally planted in wet mudlands in temperate climates, such as ponds and swamps.

Question 8: How are water chestnuts grown? Planting technology of water chestnut

Selection of varieties

Selecting excellent varieties is the basis for high yield, and also the key to competing for the season, occupying the market early, and improving economic benefits. If raw food is the main food, early and medium-ripening varieties with large water chestnuts (two-cornered water chestnuts) can be selected and put on the market in batches. Mainly for high yield, the Wuling variety with late maturity period can be planted. At the same time, because water chestnut species are prone to degradation, care must be taken to select water chestnut seeds with full rhombus shapes, high solidity, fully hardened peel, and no pests and diseases. Water chestnuts (6 photos)

Close planting at the right time

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 direct seeding and seedling transplantation. Plant two kinds. Live broadcast is suitable for river ponds with water depths 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, put dry water to dry the topsoil, and apply enough farmyard manure as base fertilizer. After planting, put shallow water in, and then gradually deepen the water layer as the seedling age increases. The amount of seeds per mu is about 60kg. , can be transplanted into 5-6 acres of water surface. 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.

Lingtang management

① Apply sufficient base fertilizer. As an aquatic vegetable, water chestnut needs fertilizer differently from xerophytic crops, and the amount of fertilizer required is relatively concentrated. Before planting, 2,000kg of pig manure or decomposed mud manure can be applied per mu. When the water chestnuts sprout, 5kg of urea can be applied per mu as a quick-acting fertilizer. After flowering, it can be divided into 2 to 3 times in combination with 2 to 3 packets of powerful yield-increasing fertilizer for disease and insect control or 2% Potassium dihydrogen phosphate is sprayed on the leaves to prevent premature aging. ②Pest control and weeding. Common insect pests of water chestnuts include aphids, leafhoppers, etc. In the early stage of the damage, 90% crystalline trichlorfon 800 times solution or 5-6 bottles of trichlorfon mixed with 50kg of water can be sprayed with a small machine. Spray once every 10 days. The use of highly toxic pesticides such as methamidophos is strictly prohibited to reduce the risk of damage. Residual poison prevents water chestnut deformity or empty shells. The common disease of water chestnut is mainly water chestnut plague, which causes leaf rot. In the early stage of the disease, 400g of 5% Jinggangmycin plus 200g of carbendazim mixed with 50kg of water can be sprayed with a small machine. Master the prevention and control of diseases and pests 3 to 4 times in a lifetime. In ponds where water chestnuts are stocked, there are many types of aquatic weeds, including deep-water ichthyosaurs, shallow-water green duckweed, plankton grass, centipede grass, moss grass, etc. They must be removed manually in time, otherwise the photosynthesis of water chestnuts will be affected. Generally, after the water chestnuts are put in, weeds should be removed every 10 days until the water chestnuts cover the water surface.

Weed control technology of water chestnut in rice fields

Weeding in water chestnut pond is a heavy manual labor. However, raising a certain number of fish can control weeds and even eat them up. Insect damage can also be reduced accordingly, and the color of water chestnuts can also become brighter red.

The following are the species, quantity and specifications of fish stocked per acre: 20 grass carps of 50g/piece, 10 black fish of 100g/piece, and 4kg of crucian carp of 50g/piece. Grass carp eats weeds in the water and on the edges of banks. When the pond is full of weeds, they must be removed, otherwise they will die due to lack of oxygen. Lingtang is the most suitable for stocking carp, which can eat grass buds and insects, and can muddy the pond water without growing moss. Crucian carp and snakehead fish both tolerate hypoxic conditions, and snakehead fish also like to eat the larvae of Spodoptera litura. As long as you pay attention to fertilization and pesticides, fish farming in Lingtang will be beneficial without any harm, and the profits will be huge. Fish will only eat water chestnuts when they are extremely hungry to maintain their lives [4].

Timely harvesting

The harvesting principle must be market-oriented and focus on improving economic benefits. Harvesting should be carried out in stages according to the maturity period of varieties and different uses. Water chestnuts begin to mature 20-30 days after flowering. The maturity period of our early-maturing varieties is from August 15th to 20th, and the late-maturing varieties are in late September and early October. If used as vegetables or eaten raw, it can be best harvested when the sepals fall off and the peel is not fully hardened. If they are to be eaten cooked, processed or kept as seeds, they must be picked when fully mature. Early-maturing varieties are picked every 5 days, late-maturing varieties are picked every 7 days, and the entire harvest period is divided into 6 to 7 times. When harvesting, be careful to lift the water chestnut plates and pick the water chestnuts gently, and lay them flat after harvesting to avoid damage. If you want to save water chestnuts for seed, wash them in water in time after harvesting to remove the floating tender water chestnuts. After that, replace the water every 10-15 days to ensure the germination rate of water chestnuts in the coming year.

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