Located in the southeastern part of Heilongjiang Province, Muling City has beautiful scenery, fertile soil and abundant products. It is well-known throughout the country for its high-quality soybeans and is known as the “hometown of Chinese soybeans”. Muling soybean is mainly yellow soybean, and there are a small amount of yellow soybean black soybean and green barley black soybean. The annual planting area is more than 700,000 mu, and the output is more than 90,000 tons, all of which are non-GM soybeans. Because Muling soybean varieties are excellent, and adopting green and organic food standard cultivation, and being located in the national ecological demonstration zone, the ecological environment in the planting area is good, which makes Muling soybean mature, the grain is full, the color is uniform, and the nutrition is rich. In recent years, Muling soybeans have been sold to large and medium-sized cities in Beijing, Shanghai, Dalian, Harbin, etc., and their products such as tofu, soy milk and soybean oil have been favored by consumers everywhere.

Muling City has three major advantages in developing high-quality soybeans or organic agricultural products: First, good rain and heat conditions. Muling City is located in the southeastern part of Heilongjiang Province, with a high accumulated temperature and an average accumulated temperature of 2495 °C, the highest 2900 °C. The annual rainfall is 500-550mm, the precipitation is mainly concentrated in June-August, and the frost-free period averages 120-140 days. The average annual sunshine hours is 2632 hours and the highest is 2800 hours. The rain and heat are in the same season, the amount of precipitation is sufficient, the light and accumulated temperature are sufficient; the temperature difference between day and night is large, the average temperature difference between day and night is 10 °C, and the light is sufficient, which is beneficial to the dry matter accumulation of soybean. The second is the best production environment. Muling City is located in the shallow mountainous area of ​​the hills. The mountains are continuous, the forests are dense, the rivers are horizontal and vertical, and the mountains are clear and beautiful, with a forest coverage rate of 63%. In particular, the forest coverage rate of Gonghe Township is as high as 85% or more. Due to its excellent ecological environment, in 2002, it was rated as a national-level ecological demonstration zone by the State Environmental Protection Administration. Organic soybean production plots have farmland surrounded by mountains. Because Muling soybeans are harvested mainly by small and medium-sized agricultural machinery and labor, Muling soybeans are clean, shiny, grainy and even, and have the best nutritional products. The third is the higher temperature difference conditions. Winter snow is big, winter is long and cold, the temperature difference between winter and summer is 81°C, the highest temperature in summer is 37°C, and the lowest temperature in winter is minus 44°C, which is not conducive to wintering of soybean pests and diseases. The unique climate is suitable for Muling soybean production; soybean is a special product of Muling, Muling has the reputation of “China's soybean town” and “National green food soybean base”. Muling soybeans are all non-GM soybeans.

Muling soybean quality technical requirements I. Soybean varieties Shannong 4, Hefeng 55, Heinong 48, Dongnong 48, 绥无腥2 and so on. 2. Site conditions The soil is dark brown soil, albic soil and meadow soil. The soil pH is ≥5.0 and the organic matter content is ≥1.8%. It is a warm temperate semi-humid monsoon continental climate with four distinct seasons. The average daily temperature is 3.3 to 3.7 °C, and the annual rainfall is ≥500 mm. It is at 129°45′19′′ to 130°58′07′′ east longitude, and 43°49′55′′ to 45°07′16′′ north latitude. Third, the field management 1. Soybean seeds: outsourcing or using the method of purification and rejuvenation to breed on their own. 2. Planting time: Seeding is carried out from May 5th to 25th. 3. Planting density: 18 to 250,000 plants/ha. 4. Fertilization: Applying decomposed and innocuous organic fertilizers of 30,000 kg/ha. 5. Cultivation management: From May to early August, after soybean sowing, the shovel is ploughed before the seedlings (Mengtou soil); after the soybean seedlings are finished, the machine is shoveled in time; 1 to 3 days, catching the fine weather, After a week, grasp the sunny weather and timely shovel the machinery twice; 1 to 3 days, seize the fine weather, timely mechanical smashing twice; in early July, timely mechanical shovel three times; 1 to 3 days Grab the fine weather and timely mechanically smash it three times; in August, manually pull out the grass. 6. Chemical weeding: Weeding in accordance with the pesticides allowed in the relevant national standards. 7. Pest control: In accordance with the principle of prevention and comprehensive prevention, use disease-resistant varieties, rational rotation, and strengthen field management. In the event of pests and diseases, scientifically control the pesticides allowed in accordance with relevant national standards. 8. Yield control: ≥2000 kg per hectare. 9. Environmental and safety requirements: Must comply with relevant national regulations. 10. Harvest: The stems and leaves and the pods turn yellow, and the beans are rounded and the leaves are harvested mechanically or artificially when they reach 80% or more. Fourth, the quality indicators 1. Sensory indicators: Name indicators high protein soybean high oil soybean shape round or oval round or oval particle size range 3 to 6mm 3 to 6mm color golden uniform, navel yellow golden uniform, navel yellow Odorless, odorless, uniformity, even grain, uniform grain, 100-grain weight ≥20g ≥20g 2. Physical and chemical indicators: Name index high protein soybean high oil soybean fat content (%) —— ≥21.0 protein content (%) ≥41.0 —— Color particles without heat damage particles without damage particles (%) ≤3.0 ≤3.0 3. Safety and other quality technical requirements: Product safety and other quality requirements must comply with relevant national regulations.

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Producers within the scope of Muling soybean production may submit an application to the Muling City Market Supervision Administration for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Heilongjiang Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The detection mechanism of Muling soybean is selected by the Heilongjiang Provincial Bureau of Quality and Technical Supervision in the inspection institutions that meet the qualification requirements.