The amount of alfalfa seeds used per mu is 0.75- 1 kg, and the sowing amount should be increased or decreased according to the seed quality and different plots. Blind sowing is not allowed, otherwise it will affect the emergence of seedlings, but at least one mu can not be less than 0.5 kg.
How to deal with alfalfa seeds Before sowing, the seeds should be cleaned and dried in the sun to make the purity of the seeds reach 90%. Then mix pesticides, herbicides, rhizobia and fertilizers in proportion to prevent plant diseases and insect pests at seedling stage, and then put them in a warm place for later use.
When to sow alfalfa, you can choose spring or summer. In spring, alfalfa can be planted in places with good soil moisture and little wind and sand damage, while in places with dry soil, big wind and sand and late frost period, alfalfa is suitable for sowing in summer, preferably before the rainy season comes at the end of June.
Alfalfa sowing method Generally, alfalfa is sown by drilling or ridge planting, with the row spacing of drilling being 30-60 cm and ridge planting being 15-20 cm. Sow the seeds evenly, cover with a layer of fine soil with a thickness of 2 cm, and press slightly.