How to manage the greenhouse after the rain
Release time：2024-04-11 page views： Font size：big In the small
Recently, due to the increase in rainy weather, it has had a great impact on the growth of vegetables in the shed, especially after the weather suddenly cleared, many vegetable farmers have caused problems such as wilting vegetables and flashing seedlings due to improper management. Here, I remind the majority of vegetable farmers to pay attention to the management of continuous cloudy and rainy days.
See the light slowly to avoid flashing seedlings. When the seedlings suddenly clear after continuous cloudy, you can use the method of uncovering 1 every 1 to 3 grass tombs to make the vegetables gradually see the light and avoid the seedlings from wilting and flashing seedlings. Repeat this several times or for several days, and the number of exposed tombs will change from less to more until the vegetables grow normally.
Shantyhouses using roller shutters should not pull all the grass tombs apart at once, first roll a small amount, and then gradually increase the amount. After entering the normal management, under the condition of temperature permitting, cover the grass as early as possible and late. The time of uncovering the grass should be based on the temperature in the shed after uncovering the grass. The time of covering the grass should be determined according to the season and indoor temperature. When the temperature in the shed drops to 17 ° C, it is appropriate to cover the grass.
Suffering frost damage should be remedied in time, cut off dead branches, and spray water manually. Management should be carried out with low temperature and less light, and gradually increase light and increase the temperature in the shed. For plants with weaker growth or more fruit, harvest them in time, and throttle flowers and fruits appropriately to reduce nutrient consumption. At the same time, foliar spraying fertilizer, supplement nutrition, general foliar can spray 0.3% potassium dihydrogen phosphate plus 0.3% calcium nitrate, 1% glucose solution.
strengthen moisture control and disease prevention, continuous low temperature rainfall weather, the air humidity in the shed is high, easy to induce diseases, should be ventilated and drained in a short time at noon, control the occurrence of diseases, pay special attention to indoor temperature at 15 ℃~ 25 ℃, ensure that the relative humidity of the air is below 90%, in order to avoid rapid infection of pathogens, the disease can be selected smoke agent, dust agent control.