First, what is "run", this problem does not need to be explained more, but there are indeed many orchid friends in the question, the root of the orchid, always in a moist state, it can grow well, when you finish watering the orchid, from wet to dry, there is a period of time in the middle is run, we can divide this process into five stages, that is, wet, moist, dry, dry, towel can drip is wet, towels can squeeze out of the water is wet, towels squeeze hard to get out of the water is moist, towels can not squeeze out of the water is dry, towels dry hard is dry
Second, "run" there is no standard, according to the author,The run required by orchids, there is no quantitative standard, because there is no special instrument for measuring orchid growing stock run, of course, if you must do this work, it is also easy to do, run, with relativity and degree, each person planting situation is different, some people prefer wet a little, some people need to dry a little, are to run, but there are different degrees, there are dry nutrients, wet nutrients, so it is not convenient to set a run quantitative standard, in the end in what degree of moist moist is better, It should be judged by the results of Yanglan
Third, how to achieve "run", the author has written a special article on this problem, the key is the comprehensive factor, run is not just which factor, can be decided, involving growing medium, watering, pots, light, air volume, temperature, humidity, location, etc., of which growing medium and pots, because it is not easy to change the factors, need special attention, watering is the most flexible regulatory factor, to consider the comprehensive balance of various factors, so it is the most difficult
Fourth, why "run" is not easy to do, in addition to the above, run is a comprehensive balance of system factors, the difficulty of doing run, is that the system balance point is not easy to find, because, growing medium and pots, generally is not easy to change factors, so after other factors are clear, it is necessary to determine the growing medium, how to match, due to climate and other factors and various conditions are different, need to use different growing medium, different ratios, this work to test, to have experience to determine, after the planting medium is set, with the corresponding pot, can be coordinated with other factors, This balance is found
Fifth, how to make the "run" time longer, Lan friends know that if the wet time is long, or the dry time is long, the time of the middle run is short, so it is not OK, the orchid should rot the root and empty roots, to extend the time of running, it is necessary to shorten the wet and dry time, how to shorten the time at both ends, shorten the dry time, that is, to water in time, shorten the wet time, that is, after watering, to be able to drain as soon as possible
Orchids can tolerate a certain degree of dryness, but it is not very resistant to moisture, after the orchid is dried, it does not matter if you wait for two days, but the number of wet days is long, the root of the orchid will not work, on the other hand, the breathability of the growing medium is very important, but it is not too breathable, and it also needs to have better moisture retention, not moisturizing, and the dry time will be too long
Therefore, a growing medium, a watering, is to extend the time of the two key factors, if the god to help, the average humidity in the air is very high, then the growing medium and watering are very good to solve, if the god does not help, we must overcome the two difficulties of growing medium and watering, otherwise we can not achieve the run we want to achieve