Iha Education April Webinar - Sun Gro Nutrition & Fertilization Made Easy
8 Questions
| Total Attempts: 109
This quiz was created to review the April 16, 2009 Sun Gro Webinar
Questions and Answers
- 1.What is the most important piece of information you need to have to design a fertilization program for a greenhouse grower?
- A.
Alkalinity test
- B.
Soil test
- C.
Fertilizer label
- D.
Complete water analysis
- 2.What is the name for the measurement that tell us particular water's ability to change medium pH?
- A.
Alkalinity
- B.
Temperature
- C.
Salinity
- D.
Turbidity
- 3.What nutrient is often lacking in plants when the pH of the medium is high and results in the newer growth showing an interveinal-chlorosis?
- A.
Molybdenum
- B.
Nitrogen
- C.
Iron
- D.
Magnesium
- 4.What is the substance in limestone that causes a soil or a growing medium to increase pH?
- A.
Calcium
- B.
Magnesium
- C.
Carbonate/Bicarbonate
- D.
Gypsum
- 5.What is the term that is used to describe a fertilizer's ability to change pH?
- A.
Potential acidity / basicity
- B.
Ammoniacal nitrogen
- C.
Parts per million
- D.
Alkalinity
- 6.What types of fertilizer formulations are generally regarded as acid froming - Decreasing medium pH?
- A.
20-10-20 / 20-20-20
- B.
13-2-13 / 15-0-15
- C.
Excel
- D.
Controlled release fertilizer
- 7.What type of meter can be used to help easily measure and injectors accuracy?
- A.
Solu-bridge
- B.
Conductivity meter
- C.
EC meter
- D.
All of the above
- 8.What plants are notorious for showing iron / maganese toxicities in the greenhouse?
- A.
Scaveola
- B.
Geranium
- C.
Hardy or garden Mums
- D.
Pansies
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