Alfalfa can be planted in spring, summer and autumn, but it is better in spring and autumn.
2. When the ground temperature reaches above 5℃, the seeds can germinate. Therefore, after thawing in early spring, grass can be harvested 1-2 times that year. If the soil moisture is not good in spring, you can sow in summer. In summer, the ground temperature is high, and the seedlings are easy to grow together, and even the seedlings grow vigorously.
3. It is best to sow in summer where the wind and sand are heavy, so as not to prevent the sand cover from hindering the emergence of seedlings. Summer sowing in the north should not be later than mid-July, so as not to affect the winter, and autumn sowing can be carried out in the south after the heat.
Sowing method: when sowing, it can be carried out in small ridges or large ridges. The row spacing of small ridges is about 30 cm, and the plants are dense, which can shade weeds; The row spacing of large ridges is 40-50 cm, which is convenient for intertillage fertilization, ventilation and light transmission, vigorous plant growth, less diseases and shading. Large ridges are planted in most arid areas and reserves.
Because forage seeds are small, fine soil is added at the ratio of 1: 1 when sowing, and then sowing. Sow 1- 1.5 kg per mu. After sowing, cover forage seeds with 1-2 cm soil, or drag bamboo branches and branches back and forth several times to cover forage seeds with 6-65438 cm soil.
alfalfa
Medicago sativa L. (scientific name: Medicago sativa L.), also known as purple alfalfa and alfalfa, is a perennial herb in Leguminosae, native to Asia Minor, Iran and Transcaucasia. It is a cultivated plant in China, and now it is cultivated all over the world. It is an excellent feed plant and can be used as green manure and medicine.
Alfalfa root system is thick, deep into the soil layer, and the root neck is developed. The stems are erect, clustered, procumbent, quadrangular, hairless or slightly pilose, with lush foliage. Seeds ovoid, long 1-2.5 mm, smooth, yellow or brown. The flowering period is from May to July, and the fruiting period is from June to August.