How to fertilize orchids in early summer

During the vigorous growth period of orchids in early summer, fertilizers should keep up. For orchids, "water is the foundation, fertilizer is steel" is the fundamental guarantee for raising strong bluegrass. After the orchids leave the house every year, they should be applied with a bud-promoting fertilizer at the right time, and organic fertilizer is better, which is very beneficial to promoting the growth of orchids. In early summer, root application is still the main method, and root irrigation is diluted once a week or half a month. To fertilize well, we should "look at four things": First, look at the situation of seedlings. Yellow and thin leaves are lack of fertilizer and should be topdressing; Black face and sharp focus are excessive fertilization, so fertilization should be stopped. Apply more strong seedlings and less weak seedlings. Mountain grass, new orchid seedlings, old, weak, sick and residual grass with poor growth will not be fertilized. It is not suitable to fertilize the pedicel when the four seasons orchid is unearthed or bloomed. Second, it depends on the variety. According to different fertilizer varieties, under normal circumstances, nitrogen and potassium fertilizers should be applied to Cymbidium hybridum in summer. At this time, Cymbidium hybridum has begun to sprout, and autumn seedlings are sprouting. It is necessary to pay attention to the application of foliar fertilizer and organic fertilizer to ensure the growth of autumn seedlings and provide sufficient nutrients for buds. The flowers of Four Seasons Orchid can be sprayed with appropriate amount of phosphorus and potassium fertilizer when they enter the flowering stage, and no fertilizer is applied when the pedicel is unearthed and bloomed, so as to ensure the orchid to grow in place. Green leaf products should use organic fertilizer with balanced nitrogen, phosphorus and potassium, while linear orchids should only use phosphorus and potassium organic fertilizer. Orchids in cold regions are not fertilized in summer, and diseased orchids and residual orchids should not be fertilized on cloudy days or at high temperatures. Third, look at the time. Fertilization should be carried out in sunny evening in summer, and fertilization at noon when the soil temperature is too high will increase the osmotic pressure of the solution in the soil and make the orchid plants reverse osmosis and lose water. Fourth, look at the temperature. When the temperature is above 30℃, bluegrass goes into dormancy, and all kinds of orchids should stop fertilizing. The fifth depends on the weather. Fertilization is forbidden in rainy days, especially in rainy season.