The temperature rises, the light is getting stronger, the shed vegetables are managed, and the three defenses are done.

In the spring, as the temperature rises, the night temperature in the shed is also greatly improved. At this time, if the shed vegetable management is improperly operated, it is prone to problems such as lengthening, high temperature obstacles and hormonal poisoning, resulting in problems such as falling flowers, falling fruits, yellowing of leaves, and premature aging. It is recommended that the current vegetable management should be well protected.

As soon as the temperature rises, the temperature difference between day and night becomes smaller, and vegetable plants are prone to grow up, especially in the case of solanaceous vegetables and melons. Once the plant is long, it is easy to cause the plants to fall and fall, and even if the fruit is sitting, it is easy to have deformed fruit such as hollow fruit. In order to prevent the abbot, first of all, we must pay attention to the temperature difference between day and night; the amount of nitrogen fertilizer applied should not be too large, and try to increase the application of phosphorus and potassium fertilizer to promote plant fruit set. If necessary, you can control the tomato, sweet pepper, spray with love 3000 times or 750 times for the control, and the vine vegetable can be sprayed with 750 times or 1500 times.

Second, to prevent high temperature barriers from entering late April, the temperature is high, the light is strong, and vegetables are prone to high temperature obstacles such as sunburn. It is recommended that in the recent vegetable management, it is not possible to remove too much leaf. In addition to high temperature protection, it is necessary to spray boron and calcium fertilizer on the foliage in time to promote the occurrence of physiological diseases such as flowering and fruit rot and anti-umbilical rot.

Third, to prevent the temperature of hormone poisoning, when the flowers are scented or melon, the concentration of anthers should be reduced, and the principle of using the hormone concentration limit at high temperature should be used. Excessive use of hormone concentration will affect the flower bud differentiation of plants, causing leaf shrinkage, deformity, growth hindrance, and malformed fruit. The current tomato peach-shaped fruit and cucumber head melon are mostly caused by the decrease of the concentration of anthocyanins or anthers. . After the discovery of vegetable hormone poisoning, it can be sprayed with alizarin lactone (Yunda 120) or love more than 6000 times or nucleotide (green wind 95) 400 times for remission.