Rose Fertilization Methods
As one of the most beloved flowers among horticulture enthusiasts, the key to rose maintenance lies in scientific fertilization. Reasonable nutrient supply not only promotes bud differentiation but also strengthens the plant's disease resistance. This article will systematically analyze the golden rules of rose fertilization from five dimensions to help you cultivate stunning and vibrant roses.
Golden Time for Rose Fertilization
Top-dressing during Vigorous Growth Period
May to June, the flowering stage, is the peak period for rose's fertilizer needs. It is recommended to supplement phosphorus and potassium fertilizers every 10-15 days during this time. The best time for fertilization is between 8-10 am, avoiding the high temperatures at noon that can cause fertilizer damage.
Application of Base Fertilizer when Repotting
When repotting in spring, mix decomposed sheep manure (30g per liter of soil) into the substrate, and combine it with bone meal for a sustained release of nutrients. Ensure a 2cm separation layer between the base fertilizer and the roots to prevent root burn.
Analysis of Rose Fertilizer Products
Liquid Fast-acting Fertilizer
Melox gardening nutrient solution (N-P-K=15-30-15) should be diluted at a ratio of 1:1000 and sprayed on the foliage weekly during the bud stage. Water-soluble fertilizers work quickly but should be used in combination with organic fertilizers.
Solid Slow-release Fertilizer
Ogreen 318S controlled-release fertilizer can provide nutrients for 3-4 months and is especially suitable for busy gardeners. Granular fertilizers should be mixed with the topsoil, avoiding direct contact with the main roots.
Scientific Fertilization Operation Standards
Precise Proportioning Scheme
For young plants (1-2 years old), use a liquid fertilizer diluted at a ratio of 1:1500, once every 20 days. For mature plants, increase the concentration to 1:1200, and using seaweed extract can enhance the effect.
Management during Special Periods
During summer, when temperatures exceed 32°C, stop using nitrogen fertilizers and switch to potassium dihydrogen phosphate solution for root irrigation. Before winter dormancy, apply decomposed rapeseed cake fertilizer to enhance the plant's cold resistance.
By mastering the three core points of fertilization timing, fertilizer proportioning, and application techniques, combined with precise management during different growth stages, you can make roses bloom in an astonishing manner. It is recommended to establish a fertilization log to record the time and effect of each fertilization, gradually forming a personalized maintenance plan.