1. The planting time of arrowhead is mostly in spring, usually from late April to early May, and the temperature should be kept above 15℃, so that it is easier to take root and sprout. Usually, the terminal bud of its bulb is selected for planting, and the fibrous root will grow from the third node of the stem, and then it will sprout and grow.

2. In order to improve the sprouting rate of Sagittarius sagittarius, it is necessary to accelerate its sprouting before raising seedlings. Wrap the terminal bud in a reed mat and cover it with wet grass. If the climate is dry, you can sprinkle a little warm water, and pay attention to heat preservation and moisture retention. Usually it will sprout after 1-15 days, and raise seedlings in the open field after germination. If the planting time is late, it is not necessary to accelerate germination.

3. Sagittarius sagittarius seedlings are generally raised in rice fields, which requires fertile soil, convenient irrigation and drainage, and water and fertilizer conservation. In order to improve soil fertility, base fertilizer can be properly supplemented, and 3-4 kilograms of decomposed farmyard manure should be applied per mu, and the depth of tillage should be about 2-25 cm, and then planting can be carried out.

4. Plant the terminal bud according to a certain plant spacing, and the depth from the terminal bud down to the third node is 1.5-2 cm. After planting, the water level should be adjusted, and the water depth should be kept at about 3 cm, which can improve the ground temperature and help it grow. After that, it should be planted in Grain Rain, and the roots should be inserted into the soil for about 1 cm.