When sowing alfalfa, the temperature should be appropriate, the best temperature is 25℃, and it can also be carried out in spring Qingming. Sowing time should not be too late. If the soil temperature is too low, it is difficult to germinate. The seeds used should not contain too many impurities. After cleaning, herbicide and chemical fertilizer should be mixed, and then sowing by drilling. If the ground temperature is too low, it is difficult for seeds to emerge. If you sow in autumn, you must advance a little, otherwise the temperature will drop and it will be very sad in winter.
Second, the sowing method
Soil preparation and fertilization: before planting alfalfa, soil preparation and fertilization should be carried out to ensure loose and fertile soil and good drainage, and cohesive soil should not be used for planting. After the soil is refined and leveled, an appropriate amount of organic fertilizer should be added after ploughing to ensure sufficient base fertilizer.
1. Seed selection: It is very important to choose the alfalfa varieties to be planted. At present, alfalfa is the best choice for planting. It is necessary to choose suitable varieties for planting according to the soil conditions, and at the same time, it is necessary to ensure good seed quality and full particles. Only good seeds can germinate well. If there are many impurities in the seeds, it is necessary to carry out simple selection.
Treatment: Seeds need to be cleaned before use, and some herbicides and fertilizers should be mixed at seedling stage to prevent pests and diseases. But also can appropriately improve the germination rate.
3. Sowing method: plant with a row spacing of about 30 cm. After planting, cover with a thin layer of soil, water it properly to keep the soil slightly wet, and wait patiently for the seeds to germinate, but the sowing depth should be shallow, about 0.5- 1cm. If it is too deep, it will not germinate easily.
4. Maintenance: In the process of alfalfa cultivation and management, Woye amino acid water-soluble fertilizer can be applied appropriately to supplement nutrients.
What are the high-yield grasses?
Generally speaking, the yield of common grasses such as Pennisetum, Moisturizing Grass, Silkworm Grass, Ryegrass, Alfalfa, Sudan Grass, Rumex and Amaranth is about 4-6 tons. Faced with such a low yield, farmers have to constantly expand the planting area to ensure their daily feeding needs. Over time, land, manpower, costs and so on will also increase. Oat is a new forage variety introduced by oat technology research and extension center of our base. Various provinces in China have carried out many experiments and achieved success. The yield of oat grass planted in the demonstration site of our base can reach about 3 tons per mu. It is 4-6 times that of other common grasses. At present, the yield of all grasses that can be planted in China is higher than other grasses.