The landscape is a painting, and the beauty is in Yi'an. The rolling Wu and Shuanghe waters produce the fragrant rice scent and weave the gold everywhere. The innocent black land, bred red and white cowpeas, gathered into the ocean of cowpea. Red bricks and green tiles are smoked daily, and the farmers in Yi'an work hard. Yi'an Kidney Bean, as a famous brand product of Yi'an, has already become a part of the people of Yi'an. Through a small cowpea, you can see not only the magic of nature, but also the natural way that deeper people live in harmony with nature.

The Mingzhu under the red-crowned crane is located in the west of Heilongjiang Province, southwest of Xiaoxing'anling, north of Songnen Plain, and northeast of Qiqihar City. One of the only three black soil belts in the world passes through the territory of Yi'an County. The surface layer of black soil is more than 30 cm thick and the organic matter content is 1.5%. It has a good agglomerate structure. Black soil and chernozem account for 18.3% of the county's soil area. There are two main rivers, one large reservoir and three medium-sized reservoirs in the territory, which provide a good source of water for crop growth. The nutrient-rich chernozem and abundant water supply provide a superior environment for the cultivation of the yam bean. Yi'an County is a cold temperate continental monsoon climate with four distinct seasons. The annual average temperature is 2.4 °C, the effective accumulated temperature is 2513.3 °C, the average annual sunshine hours is 2711.8 hours, the frost-free period is 127 days, and the precipitation is 481 mm. It is warm and rainy in summer, with large temperature difference between day and night in autumn, and the average temperature difference is 15 °C, which is conducive to the accumulation of dry matter in crops. Cowpea is a short-day plant with a suitable temperature of 15-25 °C. The flowering pod is suitable for 20-25 °C. The low temperature below 10 °C or the high temperature above 30 °C can affect the growth and normal pollination of cowpea. These unique climatic conditions in Yi'an County fully satisfy the growth conditions of Yi'an kidney beans and form the unique inner quality of Yi'an kidney beans. Cultural Background Yi'an Bean Legend Bean is a traditional cash crop in Heilongjiang Province and has a long history of planting in Yi'an County. According to legend, during the Qing Emperor Qianlong's reign, the drought in Yi'an County, all the crops planted by the peasants were dry and dead, and the people were not happy. One morning, a cloud tour sorghum passed by this place, seeing the hardships of the people, then cast a rain, and throwing a kind of beans from the package. After a few days, the thing grows and sprouts. After several months, the harvest is good. Gaochun distributed this material to help the victims. After the sorghum left, only four rooms were kept, and the beans were bagged. The brand building is gradually emerging. The Yi'an Kidney Beans are the traditional cash crops of Yi'an County, commonly known as “rice beans”. After years of generations of Yi'an people's hard work, Yi'an is famous in the world, and it is broadcasted overseas. Yi'an County has also become the main exporter of soybean production and planting technology in China with its “Golden Bean”. The large-scale planting and rapid development of Yi'an kidney beans is after the reform and opening up. With the improvement of people's living standards, the edible and medicinal value of Yi'an cowpea has been paid attention to, and it has gradually become an emerging specialty food. It has been developed from the front and back of the house to the cultivation of large fields, and planted in large areas to form large-scale production. In the past ten years, due to the excellent quality of Yi'an kidney beans, foreign merchants have come to Yi'an County to acquire Yi'an Kidney Bean. The export of Yi'an Kidney Bean to Africa and the Americas has greatly promoted the development of the bean industry in Yi'an County. In 2011, the planting area of ​​Yi'an cowpea reached 100,000 mu, and the commercial soybeans reached 14,000 tons. In order to maintain the excellent quality of Yi'an kidney beans, the relevant departments of Yi'an County and the Yi'an Kidney Bean Association have formulated a unified production technical regulation, and implemented the planting and planting, four-zone rotation system, using different cultivation conditions and soil types, and interspersed with different seeds. Keep the quality not degraded. The milk cowpea produced in Yi'an County has pure color, regular grain size, good gloss and high protein content. It is popular in the international market and is sold to South Africa, Cuba, Kuwait, Indonesia, Pakistan, France, the United States and other countries. Yi'an has become a well-known distribution center for cowpeas in the country, and has firmly established the status of the province's production and export of the first county. South African merchants have a special liking for Yi'an kidney beans and made such an assessment: "Yi'an's milk cowpeas are of good quality, good taste, good color and considerable quantity."

Yi'an Bean Quality Technical Requirements I. Variety Choose cowpea varieties suitable for planting in the area of ​​origin. Second, site conditions Black soil, chernozem, soil texture to soil light and sticky, organic matter content of 2.1% or more, the thickness of the tillage layer is greater than or equal to 30cm, pH 5.5 to 7.0. Third, cultivation management Election: Select the plot for the potato or corn before the rotation. 2. Less than 13%. 3. Sowing: Sowing from late May to early June. 1.3 to 16,000 plants per 667 square meters (mu). 4. Field management: timely investigation of the field when seedlings, germination and replanting. Timely weeding, post-emergence stem and leaf treatment 2 times. 5. Fertilization: (1) Base fertilizer: 1 to 2 tons of decomposed organic fertilizer per 667 square meters (mu), combined with the site preparation. (2) Top dressing: Foliar spraying 2 times during flowering and pod-forming period. 6. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, harvesting and processing Harvest: At the beginning of September each year, two-thirds of the whole pods turn yellow, and the lower leaves turn yellow. The kernels become hard and the inherent color can be harvested and dried to less than 14% moisture. 2. Five, quality characteristics Sensory characteristics: The grain is kidney-shaped, full, bright and bright, and the milky white has a clear iron red pattern. 2. 3. Safety and other quality technical requirements: Product safety and quality technical requirements are in line with relevant national regulations.

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Producers within the scope of production of Yi'an Beans may submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Yi'an County, Heilongjiang Province, which shall be reviewed by the Heilongjiang Provincial Bureau of Quality and Technical Supervision and reported to the AQSIQ for approval. . The legal inspection agency of Yi'an Kidney Bean is designated by the Heilongjiang Provincial Bureau of Quality and Technical Supervision.