1. Greenhouse / Polyhouse Establishment & Regional Agricultural Challenge

In Sreepur (Gazipur) and Shibpur (Narsingdi), intensive vegetable polyhouses growing indeterminate tomato and cucumber directly in native soil suffered severe losses after 2–3 years due to root-knot nematodes (Meloidogyne spp.) and Ralstonia bacterial wilt build-up inside the enclosed structure.

2. Drip Irrigation BD Ltd. (DIBL) High-Tech Engineering & Soilless Implementation

To permanently isolate crops from soil pathogens without dismantling the polyhouse, the growers covered the greenhouse floor with reflective weed-mat fabric and transitioned to 100% soilless buffered cocopeat grow-bags and Dutch buckets. Drip Irrigation BD Ltd. (DIBL) installed 16mm LDPE main laterals fitted with pressure-compensated emitters and 4-way micro-tubes feeding curved arrow-peg drippers into every container.

3. Agronomic Yield, Resource Savings & Commercial Return on Investment

Bacterial wilt and nematode losses dropped from 40% to 0%. Each indeterminate tomato and cucumber vine receives exact pulse fertigation 6 times daily, yielding 8.5 kg of export-grade fruit per plant and generating ৳3.6 Lakh net profit per 3,000 sq. ft. polyhouse cycle.