Basic fertilizer applied before planting grass, whole ground sowing, wetting the soil surface after sowing, watering once a day in the evening to keep the soil moist, 2 true leaves grow when fertilizer, germination and timely removal of weeds, alfalfa reaches a height of 20 cm can be harvested first, alfalfa seeding time is generally divided into spring broadcasting, summer broadcasting and autumn broadcasting. The decision of seeding time depends mainly on temperature, moisture, degree of weed damage, purpose of use, and existing conditions. Among many factors, moisture is the determining condition, and spring broadcast, summer broadcast, and fall broadcast can be used where irrigation is available.

In the northern part of China, spring drought is less and evaporation is high, this season broadcasting is not good for germination and protection of saplings, and weeds are easy to cause harm to seedlings during spring broadcasting. Summer rainy, when the temperature rises, the advantages and disadvantages of the same season seed germination and seedling growth is very favorable. In other words, from the middle of June to the end of July is the best time to sow alfalfa in the northern region. In colder regions, seeding usually occurs no later than 40 days before the first frost to make overwintering safe at the time of planting.

When planting alfalfa on saline soils without irrigation, more attention should be paid to mastering the seeding time. The pattern of salt distribution in saline soils varies with the seasons. Generally speaking, the salts of the soil are distributed in the shallow soil layer above in the spring, and move to the deep soil in the fall, and it is difficult for seedlings to emerge because the soil surface tends to form a hard plate layer when it meets rain after sowing in the spring and is exposed to the hot sun. Therefore, the time to sow alfalfa on saline soils is best chosen in late summer and early fall. Just after the rainy season, the soil salts are washed away, and the soil water content is also rich, which is very favorable to the seedlings, and the seedling protection rate is also very high.

Open the soil moisture line 1.5 meters, row spacing 20 cm, broadcast width 5 cm, 6 rows per soil moisture, broadcasting after suppression.2. Field management: Jedi fine management, manual removal of miscellaneous seaweed, the implementation of Chongqing weed control, Chongqing weed control should be carried out immediately after each felling. The bottom fertilizer is 2000 kg of fertilizer per mu farmers, calcium, magnesium, phosphorus 50 kg, one time all apply. Autumn rain after each felling, according to the fertility of the soil after irrigation spraying.

Irrigation immediately after sowing on sunny days, but the water should not cross the water surface, irrigation after germination will lead to water flooding. In the rainy season, it is important to make full use of the dry ditches and drainage ditches around the field so as not to cause weak or dead saplings. About 40 days after sowing, the first weeds, leaving the beard about 5 cm. Cut the pasture grass when it grows to grass flowers. Zoysia japonica can be used for 7 ~ 8 years when planted once with long-lived fescue. It can be harvested 2 ~ 3 times a year and produces 37.5 ~ 52.2 tons of fresh grass per hectare. The building quality content of zoysia gardenia and fresh grass harvested during the flowering period reaches 25%-30%, up to 35%, and the hectare production of hay reaches more than 75 tons.