Life-saving food was once planted and harvested for ten years, but why these three types of food are now being criticized
North China used to be the sorghum of "life-saving food".
Sorghum has strong drought resistance and wide adaptability, and has a history of more than 3,000 years in North China. North China is an arid and rainy place, and drought is one of its main disasters. At the same time, due to its extremely strong drought tolerance, it is regarded as a precious crop in North China. In addition, because its growing environment has less demand for soil quality, it is suitable for the barren areas of North China, so farmers in North China have planted it extensively. However, in southern China, due to the construction of water conservancy facilities and the improvement of new varieties breeding, it is more suitable for planting on the land of China, but due to its low yield per unit area, it has been abandoned by the majority of farmers. Correspondingly, in the arid, arid, arid soils of the western United States, sorghum is not only drought tolerant, but also can produce alcohol, thereby reducing dependence on gasoline, and is therefore a good crop.
From the "six grains" to the value of wild rice.
Wild rice is an ancient crop cultivated by the Zhou people more than 3,000 years ago. In ancient times, it was listed as one of the "six grains" and was a valuable food for the emperor. However, at that time, people did not know its growth Xi and ate it as ordinary food. In ancient poetry, there are also descriptions of wild rice. For example, Lu You's "The Fisherman: Xianghu Smoke and Rain Long Silk Silk" has "Rice is newly cooked, spoonful by spoonful", and Du Fu's "Eight Songs of Autumn Xing" has the poem "Floating Rice Rice Shen Yunhei". Obviously, in ancient times, rice was closely related to the daily life of the people.
However, people at the time probably did not realize that the beautiful rice rice was actually a kind of wild rice that was produced in swamps. Like wild rice, the common southern white rice is also formed by the expansion of rice mustard by false smut infection. In order to improve production efficiency and economic efficiency, farmers in southern China use rice blast bacteria infected by red grain robbery virus and process them into white stems for sale. As a result, the flowers of the rice can't ripen properly, and the rice can't bear fruit. As time passed, the ponds in the south of the Yangtze River were full of white water, and the rice artemisia used to produce rice became scarce day by day. Wild rice gradually changed from a main food to a supplementary food, and finally became a wild vegetable in the field, which can no longer be eaten on the human table.
However, studies have shown that rice is rich in nutrients and drugs, which have a certain effect on improving the body's immune function. As a result, wild rice was introduced abroad, and after cultivation and improvement, it developed into a precious health food. Nowadays, the "North American wild rice" on the market is actually the "wild rice" of our country.
The "life-saving food" of the northern country - North Korean ginger.
Turmeric is a perennial, root-based herb that was cultivated in Hebei, Shanxi and Inner Mongolia in the early days. It is very adaptable, and every winter, the aboveground part dies, while the underground stem still survives in the soil, and has great resistance to cold winters. In the spring, the ginger begins to sprout again and continues to grow. Black ginger grows very well, an adult black ginger tree can extract several thick whiskers, and the production capacity per mu reaches 1,000 kilograms. This has played a certain role in alleviating the drought and the affected farmers, so that they can tide over the difficulties. Usually the artichok is made into pickles and eaten with steamed buns or porridge, which is not only refreshing and refreshing, but also can satisfy hunger.
However, due to its low nutritional value and mostly used for pickling, it is difficult to circulate in the market. Under the background of rapid urbanization and the improvement of people's material life, the consumption structure of agricultural products in China has changed, and has been gradually replaced by agricultural products with high economic added value, such as corn and potatoes. At present, artichoke is only cultivated in some villages and traditional farmers' homes, and the application area is narrow. However, due to its unique historical and humanistic significance, people have protected and inherited a lot of folk rights to it.