The Effects of Perlite on Plants
In horticultural cultivation, perlite has become a popular substrate material due to its unique physical properties. This volcanic rock, which forms porous particles after high-temperature expansion, can create an ideal growth environment for plant roots, especially suitable for the needs of modern household green plant maintenance.
Four Core Advantages of Perlite for Flower Cultivation
Substrate Stability Assurance
Perlite has a neutral pH value and is biologically inactive, which can maintain soil structure stability for a long time. Experimental data show that the substrate with 30% perlite has a fluctuation range of less than 5% in physical and chemical properties after continuous use for 6 months, providing a continuous and stable growth environment for plants.
Water and Fertilizer Slow-release System
Each perlite particle contains tens of thousands of microporous structures, with a water absorption rate of 4-6 times its own weight. Its layered porosity can effectively absorb liquid fertilizer and slowly release nutrients through capillary action, reducing soil EC value fluctuations by 40%, and avoiding root burning risks.
Aerobic and Anti-compaction Characteristics
Perlite particles with a particle size of 2-4mm can form a three-dimensional ventilation network in the soil, increasing the porosity of the substrate by 25%-35%. This structure can prevent the common surface compaction phenomenon in potted plants, especially suitable for the root development of succulent plants.
Medication Slow-release Function
The porous structure has an insecticide adsorption capacity of 0.8ml/g, and progressively releases to extend the duration of the effect. Comparative experiments show that the persistence of imidacloprid in perlite substrate is extended by 3-5 days, reducing the frequency of application.
Plant Types Compatible with Perlite
Perlite is especially suitable for the following three types of plants: 1. Succulent Family: Crassulaceae, Aizoaceae, and other fleshy plants; 2. Orchidaceous Plants: Phalaenopsis, Dendrobium, and other aerial root varieties; 3. Acid-loving Flowers: Azalea, Gardenia, Camellia, and other southern plants.
It is recommended to mix perlite with peat soil at a ratio of 1:3, and for large potted plants, add 5%-10% coarse perlite to enhance drainage. Regularly observe the status of the substrate and supplement new perlite every 1-2 years to maintain structural stability.