Shuidong mustard is a special product of Dianbai County in Guangdong Province. It is named after the area surrounding Pengcun in Shuidong Town of the county. It is also called “Pengcun Mustard”. Due to its special varieties and geographical and climatic conditions, Shuidong mustard has the characteristics of crispy and delicious, tender and slag-free, sweet and delicious, and small in production. It is very popular in the market and belongs to high-grade vegetables. It is in the domestic and international markets of China. Have a good reputation.

[Origin Environment] Dianbai County is located in the southwest of Guangdong Province, on the coast of the South China Sea. It has a subtropical monsoon climate, abundant sunshine, abundant rainfall, short summer and long winter, mild climate, and has superior natural conditions for the development of vegetable production, and the water mustard Therefore, there is such an advantage because the climate of the producing area of ​​Dianbai County is subtropical, and the geological is sand dune. The soil around the water east provides enough micro-acidic yellow soil for the water mustard. It is very suitable for the growth of water mustard. It is precisely because of the “non-replicable” of the place of origin that it has created the unique taste and nutritional value of the water mustard. [Variety Origin] Sedum mustard is a new variety of high-quality vegetables with obvious local characteristics. It is a variety that people often eat. Ordinary mustard has been repeatedly selected by the majority of vegetable farmers and agricultural personnel in the vicinity of Pengdong Village, Dianbai County, and has completely changed the shortcomings of stems and leaves, less stems, more fibers, green leaves and bitterness. It has been transformed into a high-quality variety with a heart-shaped heart, a small stem and a few leaves, a crispy stem, and a white-flavored taste with a slightly sweet taste. It has become a favorite table vegetable and has a promising market prospect. Because its quality is limited by the planting area, it is the largest in the area around Dianbai County, especially in the surrounding area of ​​Shuidong Pengcun, and its quality is obviously superior to other areas. Therefore, the newly cultivated variety is called "Pengcun mustard." Pengcun mustard is well known in the agricultural market. Later, other areas in Shuidong began to grow Pengcun mustard. The relevant departments began to promote the high-quality mustard in Pengcun. Because Pengcun is near Shuidong Bay, there are sea water, steam and fog, and its mustard is mostly planted in dry land and sandy soil. It is often watered with well water and organic fertilizer, especially the unique cultivation method of Pengcun vegetable farmers. The most high-quality and famous, so there is the "water east mustard A world, Pengcun mustard green water east". [Quality characteristics] On the palate, Shuidong mustard is crispy and delicious, tender and slag-free, fresh and sweet, and has no bitter taste of ordinary mustard. Water mustard also has a special scent that enhances appetite and helps digestion. It also has the functions of clearing away heat and detoxifying, antibacterial and swelling, anti-infection and prevention of disease, inhibiting the toxicity of bacterial toxins and promoting wound healing. [2] It contains rich vitamins, minerals and protein. In addition, it contains mustard sugar. After hydrolysis, the volatile mustard oil produced has a special spicy taste. The protein contained in it contains a large amount of amino acids after being decomposed, and when cooked, it produces a delicious flavor with excellent quality. It is "sexual, fragrant, can be ventilated, gas, phlegm; benefit lung, spleen, stomach." Have a certain health effect. Shuidong chicken heart mustard is shaped like a chicken heart. The dried vegetables are rich and round, green and translucent, and some locals call it “lantern mustard”. [Production and planting] Under the impetus of the market economy, at the beginning of the 21st century, the organization of Shuidong mustard production and management has been greatly improved, and the traditional small-scale peasant economy has gradually become industrialized, intensive, and large-scale. The direction of factoryization has changed. By 2011, more than 10 enterprises have invested in the development and cultivation of water mustard. The scale of planting is small, there are dozens of acres, and the large ones are several hundred mu. The products are sold, supplied and sold one by one. The products are sold to all major cities in China. Mid-city and Hong Kong and Macao. The large-scale operation includes Guangdong Oasis Agriculture Co., Ltd., Dianbai County Zhenglu Vegetable Co., Ltd., Dianbai County Minsheng Green Food Technology Co., Ltd., Dianbai County Green Edge Green Agriculture Co., Ltd., Maoming Tianli Dadi Ecological Agriculture Ltd. and many other companies, the production base scale between 100 acres and 500 acres. These companies have achieved “no pollution agricultural products certification” and “green food certification”. The annual planting area of ​​Dianbai County has reached 50,000 mu, mainly distributed in the three towns of Shuidong, Danchang and Lintou. The planting area of ​​the towns of Magang, Shuzi, Diancheng, Lingmen, Guanzhu and Mata are also Expand year by year. The average yield per mu of mustard is 1.5 tons per year. The average annual planting is 4,000 tons. The annual output is 300,000 tons, the average output per ton is 3,000 yuan, and the annual output value reaches 900 million yuan. It has become the main production area of ​​the water mustard. The pillar industry plays an important role in increasing the income of local farmers and developing local economies. [Product sales] Since 2000, Shuidong mustard has been popular in major hotels, restaurants and supermarkets in the Pearl River Delta region, Shenzhen, Zhuhai, Hong Kong and Macao, and sales have risen steadily, becoming a hot commodity in short supply. By 2011, Dianbai County has initially formed four major sales channels: First, Guangdong Oasis Agriculture Co., Ltd., Shenzhen, Zhuhai, Hong Kong-based hotels, supermarkets, distribution and export sales channels; Second, Dianbai County Zhenglu Caiye Co., Ltd. The company mainly sells hotels, supermarkets and large-scale farmer's markets in the Pearl River Delta region; the third is the sales channel of Dianbai County Green Edge Green Agriculture Co., Ltd., which is mainly distributed to hotels and supermarkets in Guangzhou; Professional purchasers and exporters use the province's large and medium-sized farmer's market as the sales channel. In order to ensure the quality of the water mustard, in 2006, Dianbai County established the seed culture purification and rejuvenation breeding base of the water mustard seed in the Magang Science and Technology Demonstration Site of the County Agricultural Bureau, and purified and rejuvenated the seeds of the water mustard seed in the county to ensure the purity of the seeds. Provide high quality water mustard seeds for the majority of farmers.

Technical requirements for quality of water mustard (1) planting varieties. Cruciferae leaves are mustard. (2) Site conditions. Yellow loam or red loam is used, the pH is between 4.2 and 6.9, the organic matter is ≥2%, and the slope and slope are below 20 degrees. (3) Cultivation techniques. 1. Preparation: Two ploughs and two hoes are required to be cultivated, the glutinous noodles should be flattened, and the soil should be finely divided. 2. Planting density: 150,000 seedlings to 225,000 seedlings per hectare. 3. Fertilization: Apply 22,500 kg of fermented decomposed organic fertilizer and no more than 750 kg of inorganic fertilizer per hectare. 4. Pest Control: It is strictly forbidden to use high-toxicity, high-residue pesticides and their mixed pesticides that are prohibited by the state. Pesticide application strictly enforces the provisions of GB 4285 and GB/T 8321. (4) Harvesting. Harvest in 30 to 45 days in spring and summer; harvest in 40 to 50 days in autumn and winter. (5) Quality characteristics. 1. Sensory features: the leaves are fan-shaped, the leaves are green, and the petioles are yellow and yellow. The plant type has a neat appearance, a small volume of heart, and a few stems. The taste is good, the taste is slightly sweet, and the residue is small. 2. Physical and chemical indicators: 100 grams of protein ≥ 1 gram, potassium ≥ 150 mg, calcium ≥ 50 mg.

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Producers within the scope of protection of the geographical indication products of S. sinensis can submit an application for the use of the “Special Mark for Geographical Indication Products” to the Dianbai County Quality and Technical Supervision Bureau of Guangdong Province, which is approved by the General Administration of Quality Supervision, Inspection and Quarantine.