The seeds of basil are small and expensive. Generally speaking, seedlings are cultivated in seedling trays. Wet rice bran ash is used as the substrate, then the wet rice bran is flattened and compacted, and then a thin layer of culture soil is sprinkled. The seeds are soaked in rice bran ash, and the tray is covered with non-woven fabric for heat preservation, so that the temperature is kept at about 25℃, and the seedlings can emerge completely in about 7 days. After sowing 14 ~ 20 days, transplant the seedlings into wet river mud blocks, keep the temperature at 18 ~ 25℃, shade for one month, then store the seedlings and plant them in flowerpots.

Planted in round pots, the pot soil is composed of garden soil and slag, and each pot is applied with 200 grams of decomposed dried chicken manure, and each pot contains one plant. The mud with seedlings is planted in the hole, and the roots are watered once and kept warm. Balanced supply, sowing from February to 10, seedling age 25-30 days.

Basil is planted underground, and it can be planted when the seedlings of basil grow 5 ~ 6 true leaves. You should choose a place with high terrain and plenty of sunshine. You can dig holes according to the row spacing of 30 cm and the plant spacing of 30 cm. Usually plant a seedling in each hole, straighten the seedling first, straighten the root system, and then fill the soil for compaction. The whole operation can be completed by pouring water once.

Basil likes humid soil environment, and water supply should be ensured in the vigorous growth stage. There is little demand for fertilizer, except the base fertilizer, which can be topdressing once every 2 ~ 3 weeks in the vigorous growth period. Basil likes sunny environment. Exposure to the sun should be no less than 4 hours every day, and it is best to keep sufficient sunshine. They like warmth and are afraid of low temperature, and grow well in the temperature range of 18 ~ 28℃. When it is frozen, plants will wither and die. In practical cultivation, basil will be harmed by damping-off and aphids, and if it happens, it should be dealt with in time. In September every year, most of the mature ears of small nuts are selected, cut and dried, placed in a dry and cool place, then concentrated to remove impurities, and then the obtained seed materials are stored for later use.