Garden planting inseparable from the soil thermometer

Temperature is an important ecological factors in the garden planting, temperature can cause such as humidity, rainfall, soil fertility changes, such as the junction temperature of the position's location, especially it should be noted that the time change of temperature, extreme temperature, temperature difference between day and night and years such as bougainvillea blossom in natural conditions need to high temperature and high humidity environment, outdoor cannot survive safely the winter in the north. Northern many tree species such as pinus tabulaeformis, poplar and so on all need low temperature induction before flowering, through jarovization can blossom. When selecting a variety should pay attention to the rhythmic local variable temperature, avoid such as low temperature cold injury, cold injury, frost heaving and frost crack, and the physiological drought, high temperature season of skin burn and plant root neck injuries. Soil is also a bimetallic thermometer thermometer, it is with different expansion coefficient of solid combination together two pieces of metal heat element, generally made spiral wound, its one end fixed and the other end with a pointer. When the temperature changes, the thermal component of curvature change, free end rotation, drive the pointer indicates the temperature value on the dial. Soil thermometer is used to test the soil temperature thermometer, the soil temperature, can accurate judgment and measurement is in the garden planting more and more big, it to the growing of crops, and having the effect that cannot underestimate working in the garden in the development of applications will be more and more widely. Soil thermometer tail as the pin type, can be directly inserted into the soil, soil temperature.