At present, greenhouse vegetable cultivation is more popular. In many areas, greenhouse cultivation has been used to carry out vegetable cultivation. However, in the management of vegetable greenhouses, there are also some outstanding problems, which restrict the further development of vegetable greenhouse cultivation industry. For example, in the cultivation process, many vegetable farmers pay too much attention to the input of three kinds of fertilizers, such as nitrogen, phosphorus and potassium, and rely mainly on empirical fertilization, which leads to the phenomenon that soil nitrogen, phosphorus and potassium exceed the standard in many greenhouses. In order to solve such problems, it is necessary to use soil nitrogen, phosphorus and potassium analyzers to detect and analyze the soil, find out the problem, and develop a scientific and effective solution. Among all the nutrients, the most abundant growth of vegetables is nitrogen, phosphorus and potassium. Therefore, the farmers pay most attention to the three types of fertilizers, but the three nutrients have different effects. Not as much as possible, but should be moderate and balanced. From the point of view of function, nitrogen is a life element. If it is not right, it will endanger "life"; phosphorus is an energy element, and it is better to use the right one; the potassium foot is good, and the excess is harmful. These experiences have shown that soil nitrogen, phosphorus and potassium exceeding the standard are not beneficial to the growth of vegetables and other crops, but are harmful. Therefore, in view of the outstanding problems in the current vegetable greenhouse, the soil nitrogen, phosphorus and potassium analyzer is used to solve the vegetable greenhouse. The problem of excessive nitrogen, phosphorus and potassium in the soil is imperative. After using the soil nitrogen, phosphorus and potassium analyzer to analyze and analyze, if the nitrogen, phosphorus and potassium in the soil are found to exceed the standard, then it is impossible to continue to apply these fertilizers, and do not plant vegetables immediately, but should take some measures to improve Soil, for example, pouring large water, applying soil conditioner and biological fertilizer, conducting soil testing and formula fertilization, etc. In addition, in the later management process, soil NPK analyzer should also be used to measure soil to make these large elements. Fertilizer can be reasonably adjusted according to the needs of the crop and the actual soil, thereby promoting root development, improving fertilizer utilization, and achieving weight loss and efficiency. Smart Dry Ice Cleaning Machine Dry ice particles are sprayed to the working surface by high-pressure air through the operation system of dry ice cleaning equipment, and the physical reflection of temperature difference is used to make different substances separate at different contraction speeds. When the - 78 ℃ dry ice particles contact with the dirt surface, it will produce embrittlement explosion phenomenon, which makes the dirt shrink and loose. Then the dry ice particles will instantly gasify and expand 600-800 times, producing a strong peeling force, which will quickly and completely remove the dirt from the surface of the object. Smart Dry Ice Cleaning Machine,Smart Dry Ice Blasting Cleaning Machine,Dry Ice Cleaning Machine Blaster,Co2 Cleaning Machine Ningbo Hangtai Environmental Protection Technology Co., Ltd , https://www.nbhangtaikj.com