FERTILIZER FOR RHODODENDRONS 1 kg
- Compiled in an optimal portion, macro and micro nutrients guarantee abundant flowering and a beautiful plant habit.
Special forms of nitrogen, phosphorus and quickly absorbable magnesium determine the correct, time-stable effect of the fertilizer and effective uptake of nutrients by plants.
Each granule provides the claimed nutrients.
This ensures their even distribution on the surface.
Composition:
NPK fertilizer (Ca-Mg-S) 5-6-10 (2-5-25)
Contains:
- nitrogen (N),
- Phosphorus (P),
- Potassium (K),
- Calcium (Ca),
- Magnesium (Mg),
- sulfur (S),
- boron (B),
- Copper (Cu),
- Iron (Fe),
- Manganese (Mn),
- molybdenum (Mo),
- Zinc (Zn).
Use:
The fertilizer can be used to prepare the soil before planting and during plant growth.
Before planting, mix the soil from the hole (25-30 cm deep) with acid peat or coniferous tree bark in a 1:1 volume ratio. For 100 l of the substrate prepared in this way, add 20-50 g of the SUMIN fertilizer for rhododendrons, azaleas, heathers and other acid-loving plants, and then mix it thoroughly with the substrate. After applying the fertilizer, if the soil is not sufficiently moist, it should be watered. The obtained substrate should have an acid reaction, i.e. pH in the range of 4.0-4.5.
Soft water, preferably rainwater, should be used to water the planted plants.
Plants already growing, in subsequent years of cultivation, should be fertilized as early as possible in spring (in March-April), using an annual dose of fertilizer in the amount of 20-50 g per 1 m of soil under the crown of plants, divided into 3 parts (e.g. the lower recommended amount of 20 g in 3 doses: 5 g in March-April, 10 g in May-June and 5 g in July). For the first spring fertilization and the last summer fertilization, doses close to the lower recommended amount should be used, and doses close to the upper recommended limit should be used in the phase of intensive plant growth (usually in June). The last fertilization treatment should be performed by the end of July, because too late application may cause a decrease in immunity.
During periods of expected drought and lack of irrigation, fertilization should be reduced by 30-50%, because most species are very sensitive to salinity. For mycorrhized plants, the recommended doses can be reduced by 20-30%.
The higher of the recommended doses is used for fertilizing soils poor in nutrients, the lower ones for fertile soils.
