Temperature is very important for the cultivation of greenhouse vegetables. Now that the frost has fallen, the temperature has dropped, and frost has begun to appear in many areas. How to manage the greenhouse vegetables at this time? The following Hui Nongwang Xiaobian will tell you about the management of greenhouse vegetables during the frost period. At present, the temperature outside the shed is greatly changed, and the time of closing the shed is correspondingly increased, and the environment of the shed is also changing. The farmers should pay attention to timely adjustment in the management of the shed. Shed vegetables should be strengthened to prevent: 1, temperature management Although the external temperature gradually decreases, it is recommended that the farmers still understand the temperature at which the vegetables are suitable for growth, and then control the temperature according to the temperature conditions, especially the night temperature control. The vegetable grower can choose to install straw cover, heat insulation and other shed cover to prevent the greenhouse temperature from being too low, so that the vegetables suffer from chilling damage. In general, Liaoning is mostly planted with cucumber, eggplant, pepper and tomato. These crops are warm-temperature crops. Pay attention to the night temperature at 13-15 °C. If it is lower than 12 °C, pay attention to increase the heat preservation. Therefore, when the farmers are laying the curtains, they should be careful not to put them in the end. Pay attention to leaving a small slit for heat dissipation. 2, humidity management If the outside temperature is lowered, the shed closing time will increase and the humidity will increase. Low temperature and high humidity conditions are conducive to the occurrence of diseases. Therefore, farmers are reminded to pay attention to reducing the temperature of the greenhouse and reducing the occurrence of diseases. 3, adjust the tuyere, ventilate and ventilate It is recommended that the farmers' friends take multiple adjustments of the tuyere ventilation during the low temperature season. When the temperature is low, pull the small tuyere to release the wind, and gradually adjust the tuyere position as the temperature increases. Adjust the tuyere according to the temperature change. 4, the operation between the ridges covers the straw, planting the mulch The ridges are covered with straw, and the straw can be used to adjust the humidity in the shed. It can also avoid stepping on the ground surface directly during manual operation to form a knot layer and play a buffering role. 5, protective agent prevention Vegetable disease prevention is also an important part of shed management. If some diseases break out in a large area, it is even harder to control. Therefore, farmers are advised to use broad-spectrum fungicides before the arrival of bad weather. It is also possible to supplement the nutrition by spraying foliar fertilizer to improve plant resistance. The above is the management technology of the greenhouse vegetable planting in the frost during the frosting period. Nowadays, the temperature in many places in China has dropped significantly. The growers should strengthen the greenhouse to keep warm and pay attention to ventilation and moisture. Rice Transplanter,6 Rows Rice Transplanter,Walking Rice Transplanter,Efficient Manual Rice Transplanter Taizhou Yingtian Agricultural Machinery Manufacturing Co., Ltd. , https://www.sakuradaagc.com
