What variety of water chestnut has dark skin? Detailed explanation of planting management methods and timing

Speaking of water chestnut, friends who do not know it may think it is a horse's hoof, but it is actually an edible thing. Now follow the editor of Tuliu Network to learn what water chestnut actually is? What are the planting management methods and timing?

1. What exactly is water chestnut?

1. Water chestnut is actually a plant used as a sweet, juicy fruit and vegetable and also as medicine. It is also called biqi, water chestnut, shao, fuzi, wuyu, puji, dili, qiancong, tuli, ciguier, and so on. It is most common in tropical and subtropical regions and is distributed all over the world. It is cultivated in various places in our country.

2. The water chestnut we often eat is actually the underground swollen corm of a perennial herbaceous plant with persistent roots. It also has slender creeping rhizomes. The stems of the water chestnut plant grow in clumps, are upright, and are cylindrical, with a growth height of about 15-60 cm; the stems also have inconspicuous nodes, and the leaf sheaths are membranous and yellow-green, purplish-red, or brown; the flowers and fruits of the water chestnut are very small, generally flowering and fruiting from May to October.

3. Water chestnut is rich in nutrients such as phosphorus and water. In addition to promoting human metabolism, it can also inhibit bacteria, promote development, promote fluid production and moisten the lungs, and promote urination. Whether eaten raw after peeling, sliced and cooked as a dish, or used as medicine to treat illness, it is very good.

2. When is the general planting time for water chestnut?

Water chestnut is generally propagated asexually using corms (fruit balls), but the planting time of water chestnut varies depending on the transplanting period and region.

1. The growth period of water chestnut is relatively long, generally 210-240 days. Seedlings are usually raised from mid-March to late April, and field planting can be carried out from January to the end of July. If field planting is chosen in July, then it can be harvested in mid-to-late December. The yield of water chestnut planted during this period is still relatively high.

2. In the middle and lower reaches of the Yangtze River, the field planting time for water chestnut can be arranged from late May to early June. In addition, because the early water water chestnut experiences low temperatures in the early stage, seedling raising begins 40-45 days before transplanting (late March to early April); because the temperature is higher when raising seedlings for late water water chestnut, seedlings are raised 20-25 days before planting. In the middle and lower reaches of the Yangtze River, seedlings are generally raised from Qingming to Guyu. Before raising seedlings, indoor sprouting is carried out first, and then sowing and temporary planting are carried out in paddy fields.

3. What are the planting management methods for water chestnut?

1. For water chestnut planting, seed corms are very important. Generally, healthy seed water chestnuts with unbroken skin and darker color should be selected. After selection, they should be planted in places with convenient drainage and irrigation and fertile, loose soil.

2. Before planting, the planting field must be deeply plowed, finely harrowed, and leveled, and ditches and ridges should be left around it. After that, press the corms one by one into the soil about 2 cm, keeping the spacing of each plant at 6*6 cm. When planting, be sure to keep the bud head facing upward. When the seedlings grow to about 10 cm high, temporary planting can be carried out to expand the row spacing and nutrient area.

3. Before planting water chestnut, base fertilizer should be applied. For each mu, apply decomposed livestock manure, superphosphate, potassium chloride, and ammonium bicarbonate, mixing them with the bottom soil in a ratio of 300:3:1:15 into a muddy paste; after field planting, the water chestnut seedlings should be irrigated with little water, and the water volume can be appropriately increased as growth changes; in addition, sufficient nitrogen fertilizer should be applied during tillering of water chestnut, and potassium fertilizer and phosphorus fertilizer should also be appropriately applied during the growth period. In addition, some potassium dihydrogen phosphate foliar fertilizer can be sprayed to achieve the effect of making the corms thick and large and increasing yield.

4. During the tillering stage, water chestnut should be weeded two or three times, and this should be combined with fertilization. When the corms are growing vigorously, the water layer should be deepened; but during the corm maturation stage (about 20 days before harvest), irrigation should be stopped.

5. Common diseases and insect pests of water chestnut include fusarium wilt, stem rot, armyworm complex, locusts, borers, and so on. Therefore, the planting field should be inspected in a timely manner so that problems can be discovered and treated promptly. Generally, omethoate can be used to control insect pests.

The above is some introduction about water chestnut. I wonder if it has helped you! In addition, everyone should also be reminded that when harvesting water chestnut, be sure to drain the water from the field one day in advance!