Introduction to alfalfa, distribution of alfalfa

Alfalfa, Latin name medicago falcata L, is a perennial herbaceous plant in the family Legumaceae. Its roots are stout, and the racemes are densely packed into heads.

It is mainly distributed in Northeast China, North China and Northwest China. Due to its rich protein content, it is an excellent forage plant.

Alfalfa is naturally distributed in the temperate zone of Eurasia. Lead bridges are found in almost all of Europe, as far east as Siberia in Russia; From Iran through Central Asia to Mongolia Huai Jianmeng, China; South to India (North) and the Himalayan region. In China, it is mainly distributed in the northeast, north and northwest of China, and is distributed in the wild.

Alfalfa is distributed in northeast, north and northwest China. It is native to the former Soviet Union, Siberia, Afghanistan and European countries, as well as northern China.

Hello <>

The differences between alfalfa and golden-flowered alfalfa are mainly in the following points:1The families and genera are different:

Alfalfa belongs to the legume family and its scientific name is medicago sativa; The goldenrod alfalfa belongs to the celandine family, and its scientific name is trifolium dubium. 2.The plant height is different:

The plants of alfalfa are tall, up to 50-100 cm; The plants of the yellow alfalfa are relatively short, only about 30-50 cm. 3.Leaf morphology is different:

The leaves of alfalfa are large, with three compound leaves, the small leaves are broad, and the margins are cortical teeth; The leaves of the yellow alfalfa are small, with three compound leaves, and the small leaves are narrow and long, and the edges are generally toothless. 4.Flowering time is different:

Alfalfa blooms early, generally between mid-June and early July; Alfalfa blooms later, generally between late July and mid-August. There are differences between alfalfa and alfalfa in terms of appearance, growth environment, etc., so in practical application, Paipai needs to be selected according to different needs. For example, alfalfa is suitable for use as forage or green manure, while alfalfa is more suitable for lawn or landscaping.

At the same time, the root system of alfalfa is more developed, which can effectively improve the soil structure and increase the number of nitrogen-fixing bacteria, which has a great role in promoting soil improvement and agricultural production. <>

1. Land selection and land preparation

It is best to plant alfalfa in sandy or loam soil close to water sources, loose soil, moderate soil pH or slightly alkaline, and other land can also be planted except clay, but the yield and quality of alfalfa are relatively different. When preparing the land, we need to completely remove the weeds in the field, so that we need to plough deeply, and then the soil is fine and leveled, and finally sprinkle a sufficient amount of organic fertilizer or farmhouse fertilizer as the base fertilizer to wait for sowing. <>

2. Seed treatment

Alfalfa seeds should be cleaned before planting, and then dried, and pesticides, herbicides, rhizobia and fertilizers can be mixed in proportion before sowing to avoid pests and diseases at the seedling stage.

3. Sowing method

Alfalfa seeds are generally sown in strips with row spacing of 30-40 cm. At present, the technology of dense ridge sparse planting and sparse sap is promoted, with a row spacing of 15-20 cm, which not only improves the yield, but also facilitates field management. <>

4. Field management

1) Watering: After alfalfa seeds are planted, they need to be watered in a timely manner, when watering the newly planted alfalfa seedlings, they must be carried out when the seedlings grow 3 true leaves, and the plant height is more than 5 cm, the roots of alfalfa are not resistant to flooding, flooding for 24 hours will cause death, and the rainy season should pay attention to the timely removal of water in the field.

2) Fertilization: Alfalfa needs to be applied with foot fertilizer before sowing, with 40-60 kg of superphosphate per mu and 4000 kg of manure at the same time.

3) Weeding: Weeding should be done after alfalfa planting is regreened, at the seedling stage, and before and after the second mowing. Generally, weeding is done after irrigation, and methods such as cultivating and chemical agents can be used to control weeds.

4) Pest control: After 4 years of alfalfa growth, there will be more pests and diseases. It can be controlled by using pesticides and removing diseased leaves, but the most fundamental control measures are also in the selection of disease-resistant varieties and pre-sowing drug seed dressing.

The cultivation technique of alfalfa is the same as that of alfalfa. However, the growth of alfalfa seedlings is very slow, and management should be strengthened. The hardness rate of new seeds is higher than that of round answers, which can reach more than 70%, so seed treatment should be carried out before sowing to improve the emergence rate.

The seeds weigh 1,000 grams. Absolutely.

Alfalfa: Perennial herb. The roots are stout, the stems are obliquely raised or recumbent, 30 to 60 (100) cm long, multi-branched.

Safflower alfalfa is a source of many valuable nutrients, including calcium, chromium, magnesium, niacin, phosphorus, potassium, thiamine, and vitamin C. Alfalfa is also considered to be one of the richest in isoflavones, a water-soluble chemical that acts like estrogen and is found in many plants.

Cardiovascular disease.

Menopause makes women more susceptible to cardiovascular disease. Supplementing with safflower alfalfa isoflavones can dramatically increase high-density lipoprotein (HDL) cholesterol, or "benign" cholesterol, in premenopausal or postmenopausal women. This has led some scientific researchers to believe that these isoflavones may help fight cardiovascular disease.

However, other studies have refuted this finding. Interestingly, a recent study found that menopausal women who took safflower alfalfa supplements experienced significant improvements in arterial compliance (a measure of the strength and elasticity of arterial walls). Arterial adherence reduces and increases a woman's risk of heart disease during menopause.

Safflower has a mild spleen, pungent taste, and the most important effect is to promote blood circulation and eliminate blood stasis, but its medical value has a certain ability for amenorrhea, dysmenorrhea, postpartum lochia, blood lipids and blood pressure, and it can be used directly to soak feet.

It helps to balance hormones in the body, improves hot flashes, promotes cardiovascular health, and reduces osteoporosis.

Safflower alfalfa is generally used as a grazing wild plant for livestock in rural areas, and in fact, safflower alfalfa is also a Chinese herbal medicine with high medicinal value, which can be used for mastitis, joint discomfort, jaundice and other diseases. Scientifically proven natural phytoestrogen has a considerable improvement effect on menopausal symptoms and menstrual pain. A study published in the European Journal of Menopause showed that the use of safflower alfalfa extract and a dose of 30 mg per day to 30 women found that the frequency of hot flashes could be reduced by 48% after 16 weeks, showing that safflower alfalfa can effectively improve hot flashes during menopause.

A specific isoflavone in safflower alfalfa, chickpema A (Biochanin A), fights breast cancer by inhibiting aromatase activity, an enzyme that catalyzes the conversion of male to female hormones. Cell growth affected by aromatase activity is also inhibited.

The color is different: purple and yellow, and the shape of the inflorescence is also different.

Alfalfa is feed for livestock.

Alfalfa is a delicious wild vegetable.