Liwei explains farmland irrigation techniques and methods

Introduction: Liwei "flooding" - 1 (trimming orchids) A few thoughts from four years of personally growing orchids, for reference only! Criticism welcome; inappropriate parts will be revised at any time. When you first buy orchids, the first thing is to dry the orchid roots until soft and trim the orchid plants, cutting off the scorched tips. Then the key point is trimming the orchid roots. First, all the hollow roots, rotten roots, black roots, and unhealthy orchid roots must be cut off, until the cut surface shows fresh, healthy flesh-white roots. Do not be reluctant to part with them, otherwise endless trouble follows. If there are few roots, just leave enough rootstock to grip the soil, and scrape the outer skin clean. Too few roots is not good, but too many roots is also not good. Cymbidium goeringii (Spring Orchid) needs only 2-4 roots per seedling to meet its growth needs, and Cymbidium faberi (Faber's Cymbidium) needs 3-5. Some orchid plants bought back have roots as densely packed as noodles, and all are healthy, but they still need trimming. This trimming means cutting off the short roots above the pseudobulbs, the roots not buried in the soil, and especially the good roots tightly wrapped around the pseudobulbs. Many orchid enthusiasts are reluctant to do this, but good roots tightly wrapped around the pseudobulbs will seal off the bud points on the pseudobulbs below, so the axillary buds cannot emerge from the soil and either develop poorly or rot, especially those on the new front growth. I believe many orchid enthusiasts have seen this phenomenon; it is more common in Cymbidium faberi. [Typing took 1 hour, ashamed!! Liwei flooding - 2 (dividing plants and disinfecting)]