25×25×40mm - Trapezoidal Propagation Plug - Rock Wool Growing Media

Product Description

This 25×25×40mm trapezoidal propagation plug is made of rock wool through a special thermoforming process, offering stable structure and uniform porosity. Its compact design is tailored for high-density seedling production, saving valuable greenhouse space and enabling efficient automated seeding line operations without the use of nursery trays. The trapezoidal shape (wide top, narrow bottom) maintains adequate humidity for germination while preventing root tangling, minimizing transplant shock.

Application Scope

Suitable for industrialized seedling cultivation and scientific breeding of short-cycle leafy vegetables, flowers, and herbaceous plants

Specification

Key Features

Ultra-compact: ~1,600 plugs per m², maximizing nursery space utilization.

Fast wet-dry cycle: Small volume allows rapid moisture evaporation, promoting root respiration and controlled water stress for root development.

Seeding-line ready: Standard dimensions perfectly fit 72‑cell / 128‑cell trays with no cost for trays.

Minimal buffer period: Roots emerge at the bottom precisely when transplanting is optimal, reducing seedling age and disease risk.