Soil moisture vertical change depends on soil moisture meter In this paper, we mainly analyze the changes of soil moisture on Xifeng Loess Plateau. The instrument used mainly for experiments is a soil moisture analyzer for measuring soil moisture. In the 7 years from 1989 to 2006, statistics were obtained on the 8th of each month from November to November. Has a certain degree of credibility. From the measured data, we can conclude that from the point of view of time change, the soil moisture content continues to decrease from March to July, the soil moisture reaches the minimum value, and the soil moisture content begins in late July. Continued to increase. The center of maximum water content appeared at the depth of 20~30cm in March, and the maximum value of the center was 24mm. Afterwards, the soil moisture showed a decreasing trend both in time and depth. From the end of May to mid-June, it appeared at the depth of 30~60cm. The lowest value of soil water content was 13.2mm; in the late June-early July, 120-160cm and 180-200 depths, the lowest soil water content occurred. From late June, the upper layer of soil moisture showed a significant increase, and the lower layer of moisture changed slowly. From August to September, a region with a large water content centered at a depth of 21.6mm appeared at a depth of 20 to 40cm. In the following 10-11 months, the upper soil moisture decreased, and the deep soil moisture content increased. For different depths, the vertical variation of soil water content is 0-50cm, which is the most drastic change. The soil moisture changes slowly at 50-100cm depth, which is a slowly changing layer. The soil moisture content below 100cm is relatively stable and is a stable layer. According to the water characteristics of the Xifeng Loess Plateau, we found that the area is very suitable for planting winter wheat. Soil moisture has great influence on winter wheat according to different depths and periods. Obviously, soil moisture is the biggest factor affecting winter wheat, and it is also the focus of this paper. Soil moisture analyzer is a special instrument for measuring soil moisture. In addition, portable soil moisture temperature measuring instrument can measure soil moisture, but it can also measure soil temperature while measuring soil moisture. Portable soil moisture temperature speedometer is a multi-parameter measuring instrument. The soil moisture analyzer produced by Top Instrument also carries a GPS positioning function and can display the latitude and longitude of the current measured point while measuring soil moisture. Because of this function, we can make spatial differences in soil moisture at different locations.
The fluid bed drying granulator is used for making granules for tablets, granules for capsules, various heavy granules, granulating of food and other common chemicals, as well as granulating of sugar, coffee, cocoa, cream powder, fruit juice powder, mixed starch, amino acid, flavoring, chilly condiments, wheat flour, etc.
Features
â—Fluidity is improved and dust is reduced through powder granulating.
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Working principle
The fluid bed granulating method is a result of the comprehensive application of spray technology and fluidizing technology. Mixing, granulating and drying are completed in the same closed vessel simultaneously so as to realize one-step granulating. The raw material powders are fluidized in the vessel. At the same time, the fog drips of bonds are sprayed to the fluidizing surface for granulating. After drying, the moisture is evaporated and brought out of the machine.
Options
â—Air exhaust dust online detection function
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â—Silo drying and mixing function
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â—Liquid supply system
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