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Greenhouse Management Final Exam questions and CORRECT answers

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Greenhouse Management Final Exam questions and CORRECT answers Soilless Substrate Components - CORRECT ANSWER Perlite Vermiculite Bark Coir Rice/Coconut Husk Peat Chemical Selection Criteria of Substrates - CORRECT ANSWER AEC pH CEC Alkalinity Salinity EC Physical Selection Criteria of Substrates - CORRECT ANSWER Water Holding Capacity Low bulk density Inert Uniform Stable (+ cost and availability) C:N Ratio Air Holding Capacity Environmental Factors Controlled in Greenhouses - CORRECT ANSWER Air Composition Water Ventilation Nutritional Needs Light Humidity Temperature Ventilation People Working

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Greenhouse Management Final Exam
questions and CORRECT answers
Soilless Substrate Components - CORRECT ANSWER Peat

Perlite

Vermiculite

Bark

Coir

Rice/Coconut Husk



Chemical Selection Criteria of Substrates - CORRECT ANSWER C:N Ratio

AEC

pH

CEC

Alkalinity

Salinity
EC



Physical Selection Criteria of Substrates - CORRECT ANSWER Air Holding Capacity

Water Holding Capacity

Low bulk density
Inert
Uniform

Stable

(+ cost and availability)



Environmental Factors Controlled in Greenhouses - CORRECT ANSWER Water

Air Composition
Ventilation

, Nutritional Needs

Light

Humidity

Temperature
Ventilation

People Working



Disadvantages of Greenhouse - CORRECT ANSWER Moisture Control

Insects/Pests

Disease

Cost of Structure
Temp/Ventilation Control



Roles of Water in Plants - CORRECT ANSWER Solvent

Structure

Transport

Cooling
Food/Photosyn.

Pump/Pressure Control



Why SOIL is NOT used in GH system - CORRECT ANSWER 1. Low water holding
cap.

2. Low air cap.

3. Not ideal pH

4. Soil's high EC

5. Soil is not easily controlled
6. Soil is a valuable Resource

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