When to start spraying potassium dihydrogen phosphate on orchids
This article introduces the knowledge of when to start spraying potassium dihydrogen phosphate on orchids in the field of green plants and flowers. Let's get to know together.
When to start spraying potassium dihydrogen phosphate on orchids
Applying potassium dihydrogen phosphate compound fertilizer to orchids should be based on the needs of different growth and development stages of orchids, as well as temperature, light, and seasonal changes. Generally, spraying potassium dihydrogen phosphate should be done in low temperature and high humidity weather, in the morning or evening.
In fact, to grow orchids well, the application of foliar fertilizer is essential. From my experience in growing orchids, when spraying potassium dihydrogen phosphate inorganic fertilizer on the leaves, it should be light and multiple applications. As the saying goes, "Clear orchids, cloudy jasmines."
When applying foliar fertilizer to orchids, it should be (G-Y) nitrogen-phosphorus-potassium full-element nutrition. The simplest preparation method is to add 1 gram of potassium dihydrogen phosphate and 1 gram of ammonium sulfate to 3 liters of water, with a concentration slightly higher than 1500 times.
When preparing, be sure to wait for the previous fertilizer to dissolve completely before adding the next one. Potassium dihydrogen phosphate can provide orchids with phosphorus and potassium elements, while ammonium sulfate can provide nitrogen.
If applying potassium dihydrogen phosphate foliar fertilizer alone, it can be prepared into a solution of 1500 to 3000 times; if灌溉 in the orchid pot, it should be prepared into a solution of 500 times.
After spraying foliar fertilizer on orchids, spray the leaves with water the next day to prevent excessive fertilization and excessive accumulation of fertilizer on the leaves, which may cause burn damage. As for how often to apply potassium dihydrogen phosphate for the best effect, it should depend on the growth condition of the orchids.
For orchids with vigorous growth, foliar fertilizer can be applied once every 7 to 10 days; for orchid seedlings with weaker growth, it is recommended to spray potassium dihydrogen phosphate once every 10 to 15 days.
Orchid enthusiasts should be reminded that during the flowering period, fertilization should be stopped; after flowering, it is appropriate to apply post-flowering fertilizer about 5 to 7 days after the semi-dormancy period ends; but during the winter dormancy period, foliar fertilizer should generally not be applied.
In addition, in summer and autumn, when the temperature reaches 32°C or higher, orchids stop growing, and fertilization is harmful and useless.
In conclusion, scientific and reasonable application of potassium dihydrogen phosphate can not only promote the growth and development of orchids but also has a good effect on improving the stress resistance of orchid seedlings.
Applying potassium dihydrogen phosphate compound fertilizer to orchids should be based on the needs of different growth and development stages of orchids, as well as temperature, light, and seasonal changes.
Generally, spraying potassium dihydrogen phosphate should be done in low temperature and high humidity weather, in the morning or evening. High temperature can easily dry the leaves, which is not conducive to the absorption of orchids and may cause leaf burn.
The above () introduces the full content of when to start spraying potassium dihydrogen phosphate on orchids, hoping to help you, and also hoping that everyone will come to see more green plant and flower experience knowledge!