Question 1: Where does the water chestnut grow in the lake pond?

Question 2: In which season does water chestnut grow? Water chestnut, also known as water chestnut, belongs to the genus water chestnut. It is an annual aquatic plant. It blooms in late summer and early autumn. After fertilization, the flowers are immersed in water and grow into fruits. Autumn is the season when water chestnut is abundant. Its origin is in Taiwan Province Province, and now it is mostly produced in the south of China.

Question 3: Where does the water chestnut grow? Water chestnut, also known as water chestnut and water chestnut, is the fruit of an annual herb water chestnut. Diamonds growing in the lake fall into the mud and are most likely to generate electric arcs. There are Ye Ling and Jia Ling.

Question 4: Where does the water chestnut grow? Water chestnut, also known as water chestnut and water chestnut, is the fruit of an annual herbal aquatic plant water chestnut. The corner of rhombus growing in the lake grows most easily in the mud. There are Ye Ling and Jia Ling.

Question 5: How long is the water chestnut? Aquatic plants. All the southern provinces of China are cultivated or wild. Its flesh is edible, its tender stems can be used as vegetables, and its fruit has horns, commonly known as water chestnut. The water chestnut vine growing in the lake has green leaves, purple stems and bright yellow flowers.

Water chestnut is an annual herbaceous aquatic plant, also known as "peanuts in water". Its fruit "water chestnut" is a nut, and it hangs in the water under the dense leaves. Only when the whole plant is picked up and turned upside down can it be seen. Usually, after entering the spring of February, it is necessary to set up nursery land and intensively cultivate seedlings. After the first rice harvest from the end of May to the beginning of June, the paddy field will be prepared and ridged.

Water chestnut is blue, red and purple, with crispy skin and plenty of meat. It is a good fruit and can also be eaten. Generally eaten after cooking, or chopped into fine particles after drying, and porridge can also be eaten.

Question 6: How to choose water chestnut? Where does water chestnut grow in plants? How to arrange it? In 5 minutes, the floating leaves of water chestnut were salvaged from the water, and the water chestnut grew under the floating leaves, as you can see at a glance.

Question 7: How long is the water chestnut? Water chestnut is generally planted in wet mud land with mild climate, such as ponds and swamps.

Question 8: How is water chestnut planted? Planting techniques of water chestnut

Select varieties

Selecting excellent varieties is the basis of high yield, and it is also the key to win the season, occupy the market early and improve economic benefits. If raw food is the main food, you can choose the early and middle-maturing variety (water chestnut) with large water chestnut and put it on the market in stages and batches. Wuling varieties with high yield and late maturity can be planted. At the same time, due to the easy degradation of water chestnut varieties, we must pay attention to the selection of water chestnut seeds with full diamond shape, high fullness, completely hardened peel and no pests and diseases. Water chestnut (6 tablets)

Timely close planting

The suitable time for local water chestnut stocking is generally that the water temperature is stable above 12℃ before and after Qingming Festival, and the methods can be divided into direct seeding and seedling transplanting. Direct seeding is suitable for ponds with water depth of 2-3m and fertile subsoil. When the embryo of water chestnut grows to 1 ~ 2 cm, the seeds of water chestnut disperse evenly. Before sowing, attention should be paid to the removal of aquatic plants, moss, wild water chestnut and so on in the river pond. The amount of seeds used per mu is generally 10kg, and the amount of seeds used can be appropriately increased in the ponds with poor fertility. In ponds with large water surface and deep water depth, seedlings can be transplanted. Choose a river pond with fertile subsoil and shallow water, put dry water to dry the topsoil before sowing, and apply enough farmyard manure as base fertilizer; Put shallow water after planting, and then gradually deepen the water layer with the increase of seedling age. The seed consumption per mu is about 60kg, and it can be transplanted to the water surface for 5-6 mu. The seedling age is about 60 days, and the top leaf 10. When the rhombus 15cm has 2 ~ 3 branches, tie it into a bundle with 10 straw rope and gradually insert it into the bottom of the water. If the density of water chestnuts is too high after growing, artificial thinning and even seedling raising can be adopted to prevent the water chestnuts from being sealed prematurely and the opening is small, which will affect the yield.

Tang Ling management

① Apply sufficient base fertilizer. As an aquatic vegetable, Eleocharis tuberosa has different demand for fertilizer from dry crops, and the demand for fertilizer is relatively concentrated. Before planting, 2000 kilograms of pig manure or decomposed mud fertilizer can be applied per mu. When water chestnut germinates, 5 kilograms of urea can be applied per mu as a quick-acting fertilizer. After flowering, you can cooperate with 2 ~ 3 packs of powerful yield-increasing agents to prevent diseases and insects or spray 2% potassium dihydrogen phosphate on the leaves to prevent premature aging. (2) Pest control and weeding. The common pests of water chestnut are aphids, leafhoppers and so on. At the initial stage of damage, 90% crystal trichlorfon 800 times solution or 5-6 diphacinone mixed with 50 kg water can be sprayed once every 10 day. It is strictly forbidden to use highly toxic pesticides such as methamidophos to reduce residual toxicity and prevent water chestnut from deformation or cavitation. The common disease of water chestnut is water chestnut plague, which leads to leaf rot. At the initial stage of the disease, 5% Jinggangmycin 400g and carbendazim 200g can be sprayed with a small machine with 50kg of water. Master the prevention and control of pests and diseases 3 ~ 4 times in life. There are many kinds of aquatic weeds in the pond where water chestnut is stocked, such as deep-water lotus grass, shallow-water duckweed, flat grass, Pteris vittata grass, bryophyte grass, etc., which must be removed manually in time, otherwise the photosynthesis of water chestnut will be affected. Generally, after water chestnut is put into use, weeds should be removed every 10 day until water chestnut is completely covered.

Weeding technology of water chestnut in rice field

Weeding in Tang Ling is a heavy physical labor. But a certain number of fish can control weeds, even eat all weeds, pests can be reduced accordingly, and the color of water chestnut can become more vivid. The species, quantity and specifications of fish culture per mu are as follows: 50g/ grass carp 20, 100g/ snakehead 10, 50g/ crucian carp 4kg. Grass carp eat weeds in the water and on the edge of the ridge. When the pond is full, try to get rid of them, or they will die of lack of oxygen. Tang Ling is most suitable for stocking carp, which can eat grass buds and insects, and muddy the water in the pond without growing moss. Crucian carp and snakehead are resistant to hypoxia, and snakehead also likes to eat the larvae of Spodoptera litura. As long as we pay attention to fertilization and application of pesticides, there are many advantages and no disadvantages in raising fish in Tang Ling. Fish only eat water chestnut seedlings to maintain their lives when they are extremely hungry [4].

Picking in time

The principle of harvesting must be market-oriented, focusing on improving economic benefits, and picking in stages due to different maturity and uses of varieties. Water chestnut begins to mature 20-30 days after flowering. The maturity of early-maturing varieties in our region is from August 15 to 20, and that of late-maturing varieties is from the end of September to the beginning of October. If it is used as a vegetable or eaten raw, it can be harvested when the sepals fall off and the peel is not completely hardened. If cooked, processed or stored, it must be picked at full maturity. Early-maturing varieties are picked once every 5 days, and late-maturing varieties are picked once every 7 days. The whole harvest period is divided into 6 ~ 7 times. When harvesting, pay attention to gently lift the water chestnut plate, pick the water chestnut, and lay it flat after harvesting to avoid damage. If water chestnut is to be planted, it should be washed with clear water in time after harvest to remove floating tender water chestnut, and then fresh water should be replaced every 10- 15 days to ensure the germination rate of water chestnut in the next year. ...& gt& gt