Hundreds of help plans for watering shallots over the winter need to pay attention to the following points:
1.Watering time: Watering is done before the soil freezes, preferably in the morning on a sunny day. At this time, the water temperature is relatively close to the ground temperature, which is conducive to the absorption of water by the roots. If the ground temperature is too low, the water absorption ability of the root system becomes worse after watering, and the water is easy to freeze after watering, and the root system does not breathe well, which is easy to cause frost damage.
2.Watering amount: The root system of shallots is shallow and the water absorption capacity is weak, so the amount of watering should not be too large. Generally speaking, 10-15 cubic meters of water per acre is sufficient. If you water too much and the soil moisture is too high, it is easy to cause diseases in shallots.
3.Watering method: It is best to use water-saving irrigation methods such as drip irrigation or sprinkler irrigation to avoid flooding. This not only saves water, but also reduces the risk of soil compaction and salinization.
4.Post-watering management: After watering, it is necessary to hoe and loosen the soil in time, break the compaction, increase the ground temperature, and promote the root system. At the same time, it is also necessary to strengthen ventilation and light transmission, reduce the humidity in the shed, and prevent the occurrence of diseases.
Before watering the overwintering water, you can properly apply some well-rotted farmhouse fertilizer or compound fertilizer to provide sufficient nutrients for the shallots. At the same time, attention should be paid to the prevention and control of underground pests and diseases to ensure that the shallots can safely overwinter.
The above are the precautions for watering shallots with overwintering water, which is for reference only. The specific operation also needs to be adjusted according to the actual situation.