Autumn is strong, the temperature drops, and vegetable management is done to ensure production.

With the arrival of autumn, the temperature is getting lower and the air is getting drier, and vegetables have also entered the off-season planting stage. Different from traditional planting, although greenhouses make up for the impact of seasonal changes, in the face of the harsh external environment in autumn, there are still many management points that need to be paid attention to, otherwise long-term carelessness will lead to vegetables to a certain extent. Poor growth and output effects, more serious will lead to the breeding of pests and diseases, directly affecting income.

First, press the front face mask to control ventilation. The temperature has dropped, ventilation has been reduced, and the front face vents are no longer necessary. If you don't pay attention at night, cold wind will enter the shed, causing the ground temperature to drop too fast, affecting the growth and development of the lower fruit, and aggravating the occurrence of physiological problems such as cracked fruit and chapped skin.

The second is to prepare thermal insulation facilities, but not excessive thermal insulation. Insulation quilts, roller shutter machines, etc. should be overhauled in advance to ensure that they are available at any time. In the late autumn season, the weather is fickle, so pay attention to flexibly adjust according to the weather changes. When the temperature drops to a low temperature below 8 °C, the greenhouse should be covered with thermal insulation quilts, and the arched shed should be covered with a shed film to enhance thermal insulation. However, as the saying goes, "spring covers autumn and freezes", the covering time of thermal insulation quilts in autumn should also be carefully controlled to ensure that the night temperature in the shed is not lower than 12 °C. , it is beneficial to improve stress resistance. Temperature management in late autumn and early winter should be based on balanced heat preservation, and avoid drastic changes in temperature, which will affect the normal growth of vegetables.

The third is to choose a good shed film and do a good job of dust removal. Planting melon vegetables, eggplant vegetables, etc., has high requirements on temperature and light. It is necessary to choose high-quality PO film and light-converting film to ensure good fog and droplet elimination. It is also necessary to prepare for dust removal and install dust removal cloth strips. etc., to ensure that the light transmittance of the shed film is good.

The fourth is to hang the reflective film in time. In case of continuous cloudy days and weak light in winter, reflective films should be hung in time to increase the light intensity in the shed as much as possible, and efforts should be made to improve the lower light conditions, which has a significant effect on promoting fruit coloring and ripening.

Different vegetables have different growth patterns and planting densities, and there are also great differences in suitable pruning and forking. Vegetable farmers should flexibly adjust management strategies according to the actual conditions in the shed to ensure good ventilation and light transmission. Cucumbers, loofah and other melon vegetables should be picked in time.

Fifth, adjust the watering method. In summer and autumn, the temperature is high and evaporation is fast. Vegetable farmers mostly use flood irrigation. After entering late autumn, the evaporation will decrease. It is recommended to give priority to drip irrigation. Depending on the weather, watering should be performed once a month to ensure a balanced soil water content, wide root distribution, and improved root stress resistance.

The impact of environmental changes on vegetables is very huge. In the final analysis, it is because of the influence of temperature, humidity and lighting. Therefore, when planting, we must learn to adjust management measures with environmental changes, and make certain capital and human investment. Only in this way can we ensure the normal growth of vegetables, Guaranteed yield.