Iha Education July Webinar - Plant Products
The quiz was created to review the Plant Products July 2009 webinar presentation
- 1.Why should we know what the potential acidity of a fertilizer is when choosing an analysis?
- A.
To quantify the amount of Ca and Mg in a fertilizer
- B.
To determine what effect it will have on the media pH
- C.
To check the pH of the fertilizer in solution
- D.
All of the above
- 2.Plantex Solutions 19-2-19, Fertility Plus, has the following attribute compared to Plantex 20-10-20
- A.
Higher levels of Magnesium
- B.
Higher levels of Manganese, zinc, and iron
- C.
Lower levels of Phosphorus
- D.
All of the above
- 3.Which factors are important to know when considering which fertilizer analysis to choose
- A.
Electrical conductivity
- B.
Alkalinty
- C.
Concentrations of Ca and Mg
- D.
All of the above
- 4.Electrical conductivity measures the precipitates in the solution.
- A.
True
- B.
False
- 5.Fertilizers react with the media or soil solution and produce acid, base or neutral reaction.
- A.
True
- B.
False
- 6.Water with low alkalinity has this characteristic
- A.
The CaCO3 level is > 300ppm
- B.
The media pH decreases over time
- C.
The media pH increases over time
- D.
Contains a high amount of impurities
- 7.Plantex Solutions No Stretch, 15-0-20 can be used towards the end of the crop to help prolong shelf life and keep plants greener.
- A.
True
- B.
False
- 8.Plantex Solutions 17-5-17 Complete has this attribute.
- A.
Must use the whole bag at one time when mixing up a concentrate drum
- B.
Is an alternative to rotating between 20-10-20 and a Cal Mag or injecting at the same time
- C.
Has a slightly acid potential acidity
- D.
All of the above
- 9.Optimum growth with very high alkaline water is achieved with acid injection
- A.
True
- B.
False
- 10.Fertilizer blends with Calcium Magnesium in them always have a basic potential reaction to media.
- A.
True
- B.
False
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