Choose a plot with deep soil layer, loose soil and difficult water accumulation. Farmland rotation requires planting gramineous crops or root vegetables in the previous crop, and leguminous crops are prohibited in the previous crop.

2. Soil preparation

After the previous crop is harvested, plough deeply for 25 ~ 30 cm, level the land in time, remove weeds, harrow and suppress, and keep moisture and store water.

3. base fertilizer.

Apply 5 ~ 10 kg of urea and 30 ~ 40 kg of calcium superphosphate as base fertilizer per mu.

4. Variety selection.

The alfalfa varieties in Longdong are the main varieties, and then other alfalfa varieties with drought resistance, cold resistance and high yield can be selected.

5. Seed treatment.

Before sowing, the seeds are cleaned and cooled for 2-3 days, and then coated or inoculated with rhizobia. When inoculating rhizobia, mix 10 kg of seeds per kg of rhizobia.

6. Sowing method

Sow in wide rows in Taneda with a row spacing of 30-50 cm, sow in narrow rows in grass fields with a row spacing of 15-20 cm, harrow and suppress after insertion. When sowing, the land should be leveled, sown evenly, and the rake should be covered with soil to suppress, and the sowing depth should be 3 ~ 5 cm. When planting with plastic film, ridging is carried out according to the ridge spacing of 30-40cm, with the ridge surface width of 50-60cm and the ridge height of 5cm, and covered with plastic film with the width of 70cm, with the hole spacing of10-20cm. When sowing conservatively, alfalfa seeds should be mixed with annual crops (such as millet and wheat). ), and the sowing amount of alfalfa seeds should remain unchanged.

In the case of good water and fertilizer conditions, alfalfa can generally be cut 3-5 times a year, and the average yield of fresh alfalfa is 4000-6000 kg, equivalent to 0.5-0.6 kg, and the high yield can reach 8000 kg.

It can be used as green storage feed.

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