Daqing corn (a specialty of Daqing, Heilongjiang)

Introduction to Daqing Corn

Annual cereal plants of the family Poaceae and the family Zeaceae, originating from North, Central, and South America. The plant is tall, with strong and straight stems. The leaves are narrow and large, with wavy edges, and alternate on both sides of the stem. The male inflorescence is spike shaped and grows at the top. The female flowers grow axillary and mature into grain ears. Corn has a thick central axis, and the spikelets develop into two rows of grains when paired vertically. The husk is covered with multiple layers of abnormal leaves, known as foreskin. The seeds are edible

The commercial grade is mainly divided based on the texture of the seeds, including purslane seeds, hard seeds, powdery seeds, bursting seeds, glutinous corn, sweet corn, etc. The top of the grain is concave due to the unequal dryness of the hard starch and soft starch in the grain. Hard corn contains less soft starch and does not have a hollow top after drying. Powdery corn mainly contains soft starch, powdery texture, and is easy to crush. Sweet corn is wrinkled, transparent, and does not convert sugar into starch. Popcorn is an extreme type of hard corn, with small and hard grains that do not contain soft starch. When heated, the water inside the cells swells, causing the grains to burst. Hybridization with superior inbred lines can improve maize types

Corn is used as feed, food, and industrial raw material, and is the main food in many regions. However, its nutritional value is lower than other grains, its protein content is also low, and it lacks niacin. If corn is the main food, it is prone to pellagra. Corn has low grain protein and is not suitable for making bread. In Latin America, corn is widely used as unfermented corn tortillas. All parts of the United States eat corn, which is made into boiled (or roasted) corn cobs, cream cornflakes, corn grits (made into coarse corn flour in the south), corn pudding, corn paste, corn Congee, scones, corn patties, popcorn, cakes and other kinds of food

In addition to consumption, corn is also the main raw material for industrial alcohol and shochu. There are various methods of grain processing: wet grinding method involves soaking the grains in a dilute sulfite solution for 40-60 hours; The dry grinding method uses spray or steam to wet the seeds for a short time; Fermentation method is to convert starch into sugar, and then add yeast to convert sugar into alcohol. The other parts of the plant are also widely used: corn stalks are used for making paper and wall panels; The foreskin can be used as a filling material and woven with grass art; Corn cob can be used as fuel and also as an industrial solvent. In addition to being used as livestock feed, its stems and leaves are also excellent raw materials for biogas digesters

Geographic Location

Daqing City is located in the western part of Heilongjiang Province, in the northern part of the central depression area of the Songliao Basin.

. The urban area is located between 45 ° 46 'and 46 ° 55' north latitude and 124 ° 19 'and 125 ° 12' east longitude. It is connected to the Suihua area to the east, faces Jilin Province across the Songhua River to the south, and borders Qiqihar City to the west and north. The Binzhou Railway runs through the city center, 159 kilometers southeast of Harbin and 139 kilometers northwest of Qiqihar. The total area of Daqing City is 21219 square kilometers, of which the urban area is 5107 square kilometers, and as of the end of 2010, the built-up area of the urban area was 207 square kilometers

Climate

Daqing has sufficient sunshine, less precipitation, long and cold winters, and cool summers and autumns. The annual average temperature in Daqing City is 4.2 ℃. Due to its location in a temperate monsoon climate, it is influenced by both the temperate and monsoon regions. The climate in Daqing City varies greatly throughout the year, with four seasons: spring, summer, autumn, winter, and winter, with a cycle of cold and heat