How to increase the temperature of the glass greenhouse in winter:
In the soil preparation, hoeing or seedbed, fill the soil with cow dung, pig manure, fresh garbage, manure and cut or smashed straw, straw, then add appropriate amount of new high-fat film, and finally fill the vegetable garden soil, so that The raw material starts to ferment and the microbial strain can be used for nutrition. These raw materials are decomposed by microbial fermentation of new high-fat membrane greenhouses, which can slowly release heat, gradually increase the temperature of soil and air, and increase the concentration of carbon dioxide to ensure the normal growth of vegetables. Linyi Fertilizer Network Copyright
Of course, if you want to heat up quickly in the greenhouse, there is a faster way. Just mix the above materials with a new high-fat film and make a heap of 2-3 cubic meters or more, and adjust the water to about 60%. : Grasp a hand with a hand and see the water without dripping.) The temperature in the heap can rise to 75 °C in three or five days. This material pile becomes a "earth heating room", which can be turned over as needed. Pour a few times to adjust the temperature inside and outside the stack. The benefits of this fermenting pile can be increased: the temperature rises, the fertilizer is there, the disease is less, the growth of crops in the shed is accelerated, and the soil strength is improved. Linyi Fertilizer Network Copyright
Vegetable farmers bury animal dung in the soil, plant straw, not only can be insulated, but also economical and practical, on the one hand clean up animal waste, on the other hand waste utilization, and the heat they release, can also increase soil and air temperature, Guarantee the normal growth of vegetables, why not do it. Linyi Fertilizer Network Copyright
High temperature can significantly reduce the relative humidity of the air and inhibit the occurrence of diseases. The air humidity changes with temperature. When the air moisture content is relatively stable, the air humidity decreases as the temperature increases. The occurrence of diseases is closely related to temperature and humidity. Most fungal and bacterial diseases require high air humidity (85% or more) and a suitable temperature range. If the relative humidity of the air can be reduced to less than 70%, it is extremely advantageous for the growth and development of solanaceous vegetables and melons other than cucumber and bitter gourd. In such air humidity conditions, most fungal diseases and bacteria Diseases are hard to occur. Among the greenhouse cultivation, several of the most common and most harmful diseases, such as gray mold, melon downy mildew and other diseases, the most suitable disease conditions require air humidity higher than 88%, temperature is 15-25 Between °C. When the temperature reaches 30 ° C or 32 ° C, it does not occur or is difficult to occur. Linyi Fertilizer Network Copyright
According to the above theoretical basis, and verified by a large number of production practices, after entering the severe winter season, the greenhouse cultivation of vegetables, under the conditions of adding organic fertilizer and supplementing the application of carbon dioxide, the temperature management should be based on different vegetable types and different births. The upper limit of the optimum temperature range required for the stage (phenological period) is regulated by 2-3 °C. Can be controlled in the range of 30-35 °C. Linyi Fertilizer Network Copyright
At the same time, it must be noted that the ecological and climatic conditions in the greenhouse vary with the seasons. Therefore, the regulation of greenhouse temperature will also vary according to different seasons. Linyi Fertilizer Network Copyright
In early autumn, late spring and early summer, because of the high outdoor temperature and the large amount of ventilation in the greenhouse, the ecological conditions inside and outside the greenhouse are not much different. The regulation of greenhouse temperature in this period should be based on the different habitats of the crop under the open environment. The appropriate range of temperatures required for the stage is regulated. As the ambient temperature and indoor ground temperature gradually decrease with the seasons, the indoor temperature should gradually increase, and the upper limit of the appropriate temperature required for each stage of crop growth: long development is further adjusted to 2-4 °C. When the outside air temperature and the indoor ground temperature gradually increase, the indoor temperature should be gradually reduced, and finally reach the same as or close to the outdoor temperature base. Linyi Fertilizer Network Copyright
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