The scientific name Triticum aestivum (L.) Thell is a grass annual or annual herb. Wild wheat is widely distributed throughout the country. In recent years, many wheat fields have been associated with wild wheat, and some have become flooded and become a major rival in wheat production. Generally, the output is reduced by 10% to 15%, and the weight is as high as 30% to 40%. The development of wild wheat has become wheat. One of the limiting factors of high yield has become a new problem to be solved in wheat production.
See morphological characteristics of wheat. At present, the wild wheat in the field is the result of separation and degeneration of wheat varieties during long-term planting. It has wild nature and its characteristics are threefold: First, the propagation speed is fast and the spike rate is high. The second is wild wheat breeding ability. Although wild wheat stems are thin and brittle, the wheat ears naturally bend downwards at the time of ripening, and most wild wheat grains naturally fall into the fields or fall into the fields along with wheat stubble and wheat straw due to collisions of wind and wheat harvesting machinery, but they can become self-development of the following year. seed. The third is strong adaptability. Wild wheat seed coats are thick and waxy. Winter wheat seed has a dormancy period of more than 90 days. Grains that fall into the field do not germinate during the entire summer and are not mildewed until germination occurs after wheat is sown.
Control methods (1) Wild wheat was found and removed manually. The earlier the extraction, the smaller the effect on wheat, the better the effect. If it is not easy to identify, wait until the booting stage of wheat and before flowering. After the characteristics of wild wheat are obvious, it must be pulled out again after the roots are clearly marked. (2) Wild wheat occurs in severe wheat fields. It is best to harvest manually or with a small windrower. Do not use a combine harvester to concentrate threshing. Pay attention to picking out the missing wheat ears in the field. Wheat straw and wheat stubble are used as high-temperature accumulation fertilizers. Pay attention to the purification of wheat fields. (3) Grains harvested from wheat fields with wild wheat should not be sown. It must be replaced with a good variety without wild wheat.
Hawthorn contains a variety of organic acids. After oral administration, the acidity of gastric juice is enhanced, pepsinase activity is increased, and protein digestion is promoted; hawthorn acid stimulates gastric mucosa to promote gastric juice secretion; Hawthorn contains lipase, which can promote fat digestion; Hawthorn contains vitamin C and other components, which can increase appetite by oral administration; Hawthorn can regulate gastrointestinal motility, inhibit gastrointestinal smooth muscle in spastic state, and relax gastrointestinal smooth muscle. Relaxation of smooth muscle has an exciting effect.
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