NHM · Glossary

Naturally ventilated polyhouseप्राकृतिक हवादार पॉलीहाउस

A greenhouse that relies on roof and side vents rather than powered cooling.

  • Expert explanation
  • National Horticulture Mission (NHM / MIDH)
  • 8 related terms
Ask about this
Expert explanation
Reviewer Admin Applies to NHM
This page contains interpretation and practical guidance that goes beyond the source wording. Check the underlying documents before acting. Scheme decisions and approvals rest with the relevant authorities.

Cost norms are lower than fan and pad, and also fall as the area increases. Tubular or rectangular construction and bamboo or cable-purlin construction carry different norms.

Sources

No official source has been linked to this page yet. Treat it as unverified.

Version history (2)
DateChangeReasonStatus
07 Sep 2026 Recorded as an expert explanation (7 Sep 2026) — Expert explanation
07 Sep 2026 Created — Awaiting verification
Report an issue

Spotted something outdated or wrong? Tell us what and, if possible, where the correct information is. No account or phone number needed.

Start with the scheme guides

NHB subsidy guide Commercial horticulture projects, protected cultivation above one acre, and cold storage from 5,001 MT. Open NHM subsidy guide The scheme that covers most states and union territories, component by component. Open NHM by state What we have verified for your state, and what is still an open question. Open Official documents The guidelines and circulars behind every explanation, with the version we checked. Open Glossary Cost norm, back-ended, credit-linked and the rest, in everyday language. Open Ask a question Private by default. No account, no phone number, answered with the source attached. Open

The questions people ask us most

Myth versus rule Does NHM give 50% subsidy? Rates run from 30% to 50% depending on the component, and every one carries a ceiling. Read the answer Start here What a cost norm actually means The upper limit used to calculate subsidy, not the price of your project. The single most misread number in the scheme. Read the answer Protected cultivation Polyhouse subsidy under NHM Area-wise cost norms for both polyhouse types, and the 4,000 square metre ceiling that shapes the project. Read the answer Choosing a route NHB or NHM: which applies? Project size usually decides. Where an NHM ceiling stops, the NHB route begins. Read the answer