Fertilize according to the principles of the physiological balance of flowers
On the premise of meeting the needs of nitrogen fertilizers, the proportion of phosphorus and potassium fertilizer should be paid to the proportion of phosphorus and potassium fertilizer; leaf -viewing flowers are used for potassium fertilizer on the basis of nitrogen fertilizer; And rare earth fertilizer.
Fertilize according to different growth and development period of flowers
Perennial flowers need a large amount of nitrogen fertilizer during the rapid stage of seedlings, and pay attention to supplementing phosphorus and potassium fertilizer. Generally speaking, nitrogen fertilizer is applied during the growth period of flowers. There is no need to fertilize when blooming. Phosphorus and potassium fertilizer should be applied before flowering.
Take azaleas as an example
When a rhododendron is cultivated as potted plants, the bottom fertilizer should be applied before planting, and phosphorus and potassium fertilizer should be applied before flowering to promote the formation and flowering of flower buds. The fertilizer is mainly combined with phosphorus fertilizer, nitrogen and potassium fertilizer; the azalea does not need to be fertilized during the dormancy during winter. Fertilizer mainly used for phosphate fertilizer before flowering can make the flowers of the plant great.
Fertilize according to different growth seasons of flowers
Power fertilizer can be applied in spring and autumn, and phosphorus fertilizers are appropriately applied; nitrogen fertilizer can be applied when the flowers are sprouting in spring to ensure the nutrition of the plant and make them grow strong. After entering the summer, many woody flowers are different. , Control the amount of phosphate fertilizer.