Maintenance skills of alfalfa

Alfalfa is a kind of alfalfa, and its flowering shape is very beautiful. Next, let's introduce the relevant introduction of alfalfa farming.

Biological characteristics of alfalfa

Alfalfa is a perennial herb, its hay yield ranks first among many legume grasses, and it has complete nutrients and is rich in protein, trace elements and more than ten kinds of vitamins. The main root of alfalfa is very long, which can reach less than 5 meters into the soil, with a maximum depth of about 10 meters. The lateral root is well developed, the stem is erect and smooth, 60-100cm high, the leaf is composed of three leaflets, Obovate, the petiole is long and smooth, and the stipule is very large. Purple flowers, racemes, kidney-shaped seeds, 1000-grain weight 1.5-2.5g, reached the growth peak in 2023 after sowing, and the life span can last 10-20 years, even 40 years.

Like warm and semi-humid climate, very drought-resistant, not resistant to water stains, strong cold resistance, lax requirements on the soil, PH6.5-8.5 is the most suitable for calcium-rich bustling soil or sandy loam. In poor soil, appropriate amount of barnyard manure and phosphate fertilizer should be applied as base fertilizer to facilitate nodule formation.

Alfalfa can be sown all the year round.

The flower language of alfalfa: luck.

Related legends:

The legend about clover has a long history. It is said that it is a gift that Adam and Eve brought to the world from the Garden of Eden. It is also said that the name of lucky grass comes from Napoleon. When he marched through a prairie, he found a four-leaf clover. He felt very strange. When he leaned over and picked it, he just dodged the bullet fired at him and escaped. From then on, the clover has become a symbol of luck. Now the four-leaf clover has been internationally recognized as a symbol of luck.

Alfalfa also has a flower language, that is hope, love, not despair, but hope.

What should we pay attention to in cultivating alfalfa?

Choice of land: fertile land with a soil layer of more than 1m should be selected, which is loose and has good drainage and air permeability. Alfalfa is resistant to drought, but is afraid of flooding. After 24 hours of flooding, 80% of alfalfa will die.

Adaptive areas and seed selection: alfalfa can not be cultivated in areas where the growth period is less than 85 days.

Soil preparation and sowing:

1. Before sowing, one deep turn, one rotary ploughing, one leveling and suppression, so that the land is tightened and loosened. Remove stones above 2cm.

two。 Choice of sowing machinery: precision sowing of alfalfa.

3. Sufficient sprinkler irrigation before and after sowing when soil moisture is poor.

4. Sowing method: sowing rate: 1.5-2jin / mu, width 60cm line spacing 15-20cm depth 1.5-2cm

5. Sowing date: sowing in May.

Weeding: after sowing to the seedling stage, after turning green every year, we should pay attention to the control of weeds after each harvest. Manual extraction or chemical weeding can be used. Chemical weeding can be sprayed with alfalfa herbicides and be banned within 14 days before harvest.

Drainage and irrigation: the root system of alfalfa is deep in the soil and has strong drought resistance. However, timely watering in the dry season and after each cutting can significantly increase the yield. The root system of alfalfa is not tolerant to flooding, so the waterlogged land in rainy season should pay attention to timely drainage.

Fertilization: alfalfa has root nodules, which can fix nitrogen in the air and provide nitrogen for itself, so it should be mainly phosphate fertilizer and appropriate potassium fertilizer, but in barren wasteland, saline-alkali land and places with low soil nitrogen content, a certain amount of urea should be applied as seed fertilizer when sowing. In the seedling stage of alfalfa growth or after turning green every year, the root nitrogen fixation capacity is weak, topdressing a certain amount of nitrogen fertilizer can increase its yield.

The above is the introduction of alfalfa, hope to help you.