Driven by the market economy, at the beginning of the 21st century, the organization of mustard production and management in Shuidong has been greatly improved, and it has gradually changed from the traditional small-scale peasant economy to industrialization, intensification, scale and factory. By 211, more than a dozen enterprises have invested in the development and planting of Shuidong mustard, and the scale of planting is tens of acres, while the scale of planting is hundreds of acres. The production, supply and sales are coordinated, and the products are sold to major and medium-sized cities in China, Hong Kong and Macao. Large-scale enterprises include Guangdong Oasis Agriculture Co., Ltd., Dianbai Zhenglv Vegetable Industry Co., Ltd., Dianbai Minsheng Green Food Technology Co., Ltd., Dianbai Lvyuan Green Agriculture Co., Ltd., Maoming Tianli Dadi Ecological Agriculture Co., Ltd., etc. The production base scale is between 1 mu and 5 mu. These enterprises have obtained "pollution-free agricultural products certification" and "green food certification".

The annual planting area of Dianbai County reaches 5, mu, mainly distributed in Shuidong, Danchang and Lintou, and the planting areas of Magang, Shuzai, Diancheng, Lingmen, Guanzhu and Mata are also expanding year by year. Shuidong mustard has an average yield of 1.5 tons per mu, and four crops are planted every year, with an annual total output of 3, tons, an average output value of 3, yuan per ton and an annual total output value of 9 million yuan. It has become a pillar industry in the main mustard producing areas in Shuidong, and plays an important role in increasing local farmers' income and developing local economy.

in order to ensure the quality of Shuidong mustard, in 26, Dianbai County established a seed purification and rejuvenation breeding base of Shuidong mustard in Magang Science and Technology Demonstration Field of County Agriculture Bureau, and carried out purification and rejuvenation breeding of Shuidong mustard seeds in this county to ensure the purity of seeds and provide high-quality Shuidong mustard seeds for farmers. Shuidong Chicken Heart Mustard produced by Guangdong Oasis Agriculture Co., Ltd. adopts a three-dimensional planting mode, and all organic fertilizers are applied without any chemical fertilizers. The surplus leaves are used as pig feed, and pig manure water is returned to the field to grow vegetables. Standardized cultivation is carried out in Shuidong Jixin Mustard Base. Sprinkler irrigation, shower irrigation and pumping irrigation are used. Sprinkler irrigation is used when water is needed, and manure water is extracted from septic tank for shower application, so as to ensure that Shuidong Jixin Mustard can achieve the quality of slag-free, sweet and crisp, and less fiber. In 28, "Shuidong Chicken Heart Mustard" was rated as a famous brand product in Guangdong Province.

Dianbai Zhenglv Vegetable Industry Co., Ltd. is located in Lantianpo Village Committee of shuidong town. By 211, it had a production area of 3 mu and a normal production area of 18 mu, with 35 regular workers, 3 managers and 4 Guangzhou marketers. Shuidong mustard produced by the company is mainly sold to big restaurants in Guangzhou, accounting for 97% of the total output. The average annual selling price is 3.5 yuan/kg, and 3 kg of Shuidong mustard is kept on sale every day. All the Shuidong mustard produced by the company uses the fertilizer made of peanut bran as the main fertilizer, and uses biological pesticides and pollution-free pesticides to spray, according to the production procedures of pollution-free vegetables.

Dianbai Minsheng Food Technology Co., Ltd. is located in Chencun Town. The Shuidong Lantern mustard produced by the company has registered its trademark and applied for national pollution-free certification. The company mainly produces pollution-free Shuidong Lantern mustard and pumpkin. All the products are distributed to restaurants in Guangzhou and exported to Hong Kong through Guangzhou Distribution Branch, and sold to large and medium-sized cities such as Shanghai and Beijing. The company's Shuidong Lantern mustard all adopts standardized pollution-free cultivation techniques, and the Agricultural Bureau sends full-time technicians to guide the production. All of them use pig manure water and organic fertilizer water made from peanut bran, without chemical fertilizer, and extract underground rock water for spraying, which makes the quality of Shuidong Lantern mustard sweet, crisp and refreshing, and the products are in short supply.

Dianbai County Luyuan Green Co., Ltd. was established in 21. The company is located in Hualou Village Committee, lintou town, covering an area of 15 mu. Shuidong mustard and other vegetables produced by the company are mainly sold to supermarkets in Maoming. By 211, the company's products have obtained green food certification. (1) Planting varieties.

mustard used for leaves of Brassica in Cruciferae.

(2) site conditions.

Yellow loam or red loam, with pH between 4.2 and 6.9, organic matter ≥2% and slope below 2 degrees, is convenient for irrigation and drainage.

(3) cultivation techniques.

1. soil preparation: two plows and two harrows are required, and the border is cultivated, and the border surface should be flat and the soil should be finely divided.

2. Planting density: 15, to 225, seedlings per hectare after the seedlings are fixed.

3. Fertilization: Apply 225kg fermented organic fertilizer and no more than 75kg inorganic fertilizer per hectare.

4. pest control: it is strictly forbidden to use highly toxic and residual pesticides and their mixed pesticides which are explicitly prohibited by the state. Pesticide application shall strictly implement the provisions of GB 4285 and GB/T8321.

(4) harvesting.

sowing in spring and summer for 3 to 45 days and harvesting; Sowing in autumn and winter takes 4 to 5 days to harvest.

(5) quality characteristics.

1. Sensory characteristics: the leaves are fan-shaped, with green color and yellow petiole. The plant type is neat in appearance, small in heart, with few leaves and many stems. Good taste, slightly sweet taste and less residue.

2. Physical and chemical indexes: protein ≥ 1g, potassium ≥ 15mg and calcium ≥ 5mg in 1g. Producers within the scope of protection of geographical indication products of Shuidong mustard can apply to the Quality and Technical Supervision Bureau of Dianbai County, Guangdong Province for the use of "special signs for geographical indication products", which will be announced and approved by the AQSIQ.