Application of Geothermal Line in Northeast China
In the cold regions of Northeast China, detained greenhouses are generally used to raise seedlings or plant vegetables in advance, and generally rely on coal burning to control the temperature inside the greenhouse. However, this increases investment, consumes energy, and pollutes the environment. For plant growth, ideal growth conditions can be achieved as long as the soil temperature is appropriate. Yin Guihua, deputy head of the Beilin District of Suihua City, Heilongjiang Province, is a training cadre from the Provincial Academy of Agricultural Sciences. She wondered whether it would be possible to use geothermal lines to warm the soil instead of burning coal. The geothermal line, by heating under the soil, can give the plant optimum growth conditions with minimal energy consumption. At the same time, the characteristics of its temperature can also be adjusted to play an advantage, through the adjustment of the soil temperature can avoid energy waste and reduce the cost of investment. Disposable Face Mask,Disposable Medical Masks,Surgical Disposable Face Mask,Disposable Medical Surgical Mask Guangzhou Aikangli Medical Technology Co., Ltd. , https://www.aikanli.com
On March 25 this year, she found Langfang Dongfang Cable Co., Ltd., a special wire factory known for producing electric heating ground wire. Immediately after the Dongfang Company donated the 20m2 heating line in Beilin District, the effect was very obvious. In an open-air experimental field without a greenhouse, the temperature of some soil layers installed on the heating wire can reach 28 degrees Celsius, while the unmounted part is only 18 degrees Celsius. The contrast in the greenhouse is equally clear. The root development of some crops with electric heating lines is obviously better than that of the control system, and the growth on the ground is also more robust. Subsequently, Heilongjiang Academy of Agricultural Sciences conducted a comparative experiment and reached the same basic conclusion. Yin Guihua said: “With the electric hotline, the growth of its crops is 15 days to a month faster than normal, and for crops, especially some economic crops, time is real profit. Heilongjiang Province has a longer winter time. The vegetables throughout the winter are basically supplied by the outside, but when the land is frozen and the temperature of the soil is suitable for crop growth, the best business opportunities have often been missed. Therefore, the application of the Oriental Geothermal Line in agriculture, especially in the economy The application prospects for crop planting are very broad.†She said that the next step will be to jointly apply for the establishment of a project to the province and strive for a large-scale promotion.
The feedback from Langfang Oriental Company stated that, seeing the effect of the experiment, some farmers have reserved electric hotlines for use in the next year, even though they have passed the nursery season.