1、 Watering rules

1. Do not dry or water: yam has certain drought tolerance and is a tuber. Once the environment is too humid, it is easy to affect its respiration and is not conducive to plant growth. For potted plants, watering must be carried out after the soil is dry. Water thoroughly every time, so that the alternation of dry and wet is more conducive to the absorption of water by the plant

2. It's not easy to plant waterlogging prevention medicine in shallow soil, so it's not necessary to water it. In the early stage, as long as the topsoil is less than 5cm wet, there is no need to water. When the plant grows to 1m high, it is watered for the first time and the second time after 20 days. These two times of watering should be shallow, not flood. Wait until the tuber expansion period, if the soil is dry, it needs to be watered thoroughly. In addition, in autumn, pay attention to drainage to avoid waterlogging

2、 Watering time

The time for watering yams is usually in the morning or evening. It must be avoided at noon. Due to the strong light and high temperature at noon, the water is easy to lose after watering, so it can't absorb enough water. In addition, there is no need to water in the rainy season. The environment itself is relatively humid. It is easy to accumulate water after watering, affecting the respiration of the root

3、 Precautions

Yam itself has little demand for water. If it is watered too much, it will affect the growth of plants. In particular, if there is water in the basin soil, it will also affect the respiration of the root, and it may rot after a long time. In view of the rotten roots caused by too much watering, first of all, drainage should be carried out and air circulation should be strengthened to evaporate the water as soon as possible. If the situation does not improve, it needs to be removed from the pot, properly pruned rotten roots and replanted