The temperature in summer is high, and once the water supply and demand of vegetables are out of balance, the plants will appear abnormal, ranging from wilting to dead trees. If the roots are deep and leafy, vegetable farmers should pay more attention to the maintenance and protection of vegetable roots.
The root system is abnormal
In the hot season, when vegetables repeatedly wilt, it is mostly related to abnormal roots. It can be divided into two situations, one is the root quantity is small, and the other is the root infection disease.
Root volume is small. In addition to promoting rooting, soil improvement should be carried out throughout. During the growth of vegetables, soil testing can be used to reduce the use of excessive nutrients.
When root disease occurs, use symptomatic medicine. When the root disease is mild, the vegetable grower can choose the rooting agent to use with the medicine; when the disease is serious, first use the medicine to cure the disease, and then use the rooting agent.
Reasonable use of rooting agents
When vegetables have abnormal roots, the use of rooting agents is essential. The author suggests that vegetable farmers can choose seaweed, amino acids, humic acid, and chitin rooting agents. They can not only maintain the soil and root system, but also balance plant growth.
Good control of the soil environment is the foundation
One is to lower the ground temperature. The optimum temperature for root growth of most vegetables is between 22°C and 25°C. Therefore, the ground temperature must be within an appropriate range to ensure normal root growth.
The second is to ensure adequate water and never control excessive water. Recently, there have been many consecutive cloudy and rainy days. In order to adjust the growth of vegetables, vegetable farmers often use water control methods. However, the summer evaporation is large, and the control of water and prosperity can easily cause soil drought, so there should be a degree.
The third is to maintain good soil permeability. It is recommended that vegetable farmers try not to cover with mulching film or late mulching in summer. In addition, if the fertilizer is flushed, a layer of black material will sometimes remain on the ground which will reduce the permeability of the soil, so it is recommended to hoe in time.
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