Latest precautions for watering vegetables in summer
Summer is hot with high temperatures and muggy weather, and it is exactly the season when vegetables need a relatively large amount of water for growth. During this period, the water management of vegetables directly affects their yield and quality. To achieve a high yield and increase returns, watering must be reasonable. So what should be noted when watering vegetables in summer? Let us learn about it together.
1. Pay attention to watering time
Many growers tend to fall into a misconception: the sunlight at noon is the strongest and the temperature is the highest, so watering at this time can just cool things down and relieve the heat, but this is extremely wrong. In summer, with high temperatures and strong sunlight, the ground temperature itself is already high. After several hours of sunlight, the ground has absorbed a lot of heat, so the ground temperature is even higher, while the water temperature is relatively lower. This will cause the ground temperature to drop sharply, leading to weakened root metabolism and weaker absorption capacity, and normally causing a large reduction in yield. Therefore, in summer it is best to water in the morning. By 9-10 o'clock, when the sunlight is relatively strong, do not water anymore. As the temperature rises, evaporation of water will take away a large amount of heat, which is beneficial to root activity and helps increase yield.
2. Flood irrigation is not advisable
Many growers think that because of the high temperatures in summer, watering should be done by flood irrigation, with both wide and narrow rows watered together, as this can help lower the ground temperature and air temperature and ensure that vegetables have sufficient water, which is beneficial to vegetable growth. In fact, this is a wrong idea. They do not realize that flood irrigation can cause waterlogging in the field, affect root respiration, and very easily lead to root suffocation, causing root rot and yellowing leaves, seriously affecting yield and quality, and in severe cases causing the entire plant to wither and die. Especially for some vegetables that are afraid of waterlogging, be sure to note in summer that the amount of watering should not be too large. In order to avoid water shortage in the roots on one side of the large ditch, it is best to irrigate alternately between the wide and narrow rows.
3. Do not let the soil alternate between dry and wet
During the fruiting period of solanaceous and cucurbit vegetables, the water requirement is uniform. If the soil alternates between dry and wet, it is very easy to cause fruit cracking. This is because soil drought and water shortage inhibit fruit expansion. Once too much water is applied or during rainstorms, the fruit will expand rapidly, and the flesh absorbs water faster than the peel grows, causing fruit cracking. Therefore, in summer, water timely during drought to keep the soil moist, but the amount of watering should not be too large. After rain, drain water promptly to avoid excessive water absorption by the fruit and causing fruit cracking.
The above is an introduction to the precautions for watering vegetables in summer. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.