How much is water shield (Brasenia schreberi) per jin now? Detailed explanation of cultivation methods
Water shield, also known as lake vegetable and jingcai, is a common aquatic plant in ponds and lakes. Its tender leaves are edible and have heat-clearing, detoxifying and diuretic effects, so it is grown in many places. So how much is water shield per jin now? What are the cultivation methods?
1. Introduction to water shield:
1. Where does water shield grow?
Water shield has a wide growing range and is generally more common in lakes and ponds. At present, it is cultivated in Jiangsu, Hubei, Hangzhou, Chongqing and other places in China, and the water shield from Fubao Mountain in Lichuan City, Hubei Province is mainly exported to Japan, South Korea and other places. In addition, water shield produced in Hangzhou West Lake, Lichuan City in Hubei Province and Huangshui Town in Shizhu County, Chongqing is also world-famous.
2. Can water shield be eaten?
Water shield can be eaten. Although the tender leaves themselves have little taste, they are very smooth and tender when cooked. At present, they can be used to make water shield soup, water shield fish fillet soup, water shield shredded chicken soup, cold dressed water shield and so on.
2. How much is water shield per jin now?
The market price of water shield is not expensive, about 2 to 3 yuan per jin, but due to differences in market, place of origin, selling method and selling time, the price will vary to some extent. For example, on Taobao, the 900g fresh pack sold by Boduoke Food Franchise Store costs about 32.9 yuan; in the Hangzhou area, 275g of fresh Chunye West Lake water shield sells for about 6.5 yuan per bag; in the Chongqing area, 400g of fresh water shield from Huangshui, Shizhu, Chongqing sells for 8.8 yuan. If purchased outside the harvesting period, it may be about ten yuan or more per jin, so the specific price still needs to be checked at the local market. In addition, if you want to buy it, you can buy it directly online, which is not only convenient and quick, but also not expensive.
3. What are the cultivation methods for water shield?
1. Site selection and land preparation: what kind of land is suitable for planting?
Water shield is suitable for growing in sunny, slightly acidic soil with unpolluted water quality, so when choosing a site, try to choose a sunny and pollution-free area for cultivation, such as paddy fields and ponds, which are good choices. After choosing the site, plow the soil deeply to about 30cm, raise and reinforce the field ridges to ensure the mud height is about 20cm, and finally spread about 2500 kg of decomposed human manure or about 300 kg of decomposed barnyard manure per mu, then plow it deeply into the soil, release shallow water and wait for later planting.
2. Sowing and seedling raising: when is the best time to sow?
(1) Sowing method: water shield can be propagated by seed sowing or cuttings, but seed sowing has a low germination rate, so in most cases cutting propagation is used.
(2) Seedling raising time: spring or autumn, but March to April is best.
(3) Seedling raising method: before planting, dig up some white, thick overwintering underground stems, growing-period underwater stems or dormant buds, then insert them vertically into the mud at a row spacing of 50cm.
(4) Seedling raising density: generally 50 to 100 kg of seedlings per mu is enough.
Water shield can be planted in both spring and autumn, but the best sowing time is still March or April in spring, and secondly August or September in autumn is also quite good.
3. Field management techniques: how to manage?
(1) Water requirements: water shield has high water requirements. Generally in spring, the water depth is best controlled at about 15cm. After the seedlings emerge, raise the water level to about 25 to 35cm. In summer, adjust the water level to about 70 to 8cm. In winter, control the water level at about 30cm. In this way, water shield can grow well.
(2) Fertilizer requirements: water shield does not have high fertilizer requirements. Generally, when leaves turn yellow or growth is slow in the field, some phosphorus fertilizer can be applied appropriately. The specific amount and time of fertilization should be determined according to the growth of the water shield.
(3) Pest and disease control: during the growth period of water shield, diseases and pests such as wilt disease, leaf rot, stem borers and green caterpillars will occur, so preventive measures should be taken in advance. For those that have already developed pests or diseases, Bordeaux mixture, dimethoate emulsion or other special pesticides can be used for control.
The above is a detailed introduction to the latest market prices and cultivation methods of water shield. I hope it is helpful to everyone.