This document provides information about a presentation on greenhouses. It lists the presenters and then discusses what a greenhouse is, factors to consider in choosing a location, structural components, types of greenhouses, glazing materials, crops grown, ventilation needs, advantages of greenhouses, and the greenhouse effect. The main points are that a greenhouse is a framed structure that controls the environment for growing plants, important considerations include location factors and infrastructure needs, and greenhouses offer benefits like environmental control and uniform crop production.

1. WELCOME
Green house

2.  Presented by :-
 ArjunSharma 101
 Vikram Shedge 102
 Janhavi Shinde 103
 Vikram Shinde 104
 Yogesh Shirole 105
 Vaishali Shirsat 106
 Durgesh Shivade 107
 Jaypal Sirsat 108
 Mahesh Solase 109
 Pradip Thomre 110

3.  Any framed or covered structure with controlled
environmental condition used for the production of
fruits, vegetables, flowers or growing plants and it
allows to operate by man

4.  Market
 Accessibility
 Climatic conditions
 Water and other utilities
 Zoning regulations
 Labour supply
 Expansion

5. Structural Parts of a Greenhouse
Water and electrical lines should be located and placed before the foundation
is constructed.
The foundation should be level and provide adequate structural support for
the greenhouse. Structural components of a greenhouse include:
Ridge (top of the greenhouse)
Anchor support posts (main structural support)
Trusses (structural strength)
Purlins (structural strength)
Ventilators (cooling)
Cooling fans (cooling)

6.  Attached Greenhouses
 Freestanding Structures
 Connected greengouses

7.  Polyethylene
 glass
 Corrugated Fiberglass-Reinforced Plastic
 Polycarbonate

8.  mainlycrops grown on raised beds which are
supplied with proper irrigation facilities

9.  Ventilation is one of the most important components in a
successful greenhouse.
 If there is no proper ventilation, greenhouses and their
plants can become prone to problems.
 The main purposes of ventilation are to regulate the
temperature to the optimal level, and to ensure movement
of air and thus prevent build-up of plant pathogens (such
as Botrytis cinerea) that prefer still air conditions.
 Ventilation also ensures a supply of fresh air for
photosynthesis and plant respiration, and may enable
important pollinators to access the greenhouse crop.

10.  Greater environmental control
 Uniform quality production.
 Greenhouses may be used to overcome
shortcomings in the growing qualities of a piece of
land.
 Greenhouses are often used for growing flowers,
vegetables, fruits, and transplants.
 Special greenhouse varieties of certain exotic
crops.

11.  it is the effect due to the emission of green
houses such as CO2 , CH4 , CFC etc.
 CO2 :- 50 %
 CH4 :- 30 %
 CFC :- 13 %
 its leads to global warming & such increasing
green house cultivation leads to increasing the
global temperature by 40c in 2025 .

12. Thank you