This quiz was created to review the April 15th webinar presented by Plant Products.
Ammonium toxicity occurs when blends with high urea as a component are used
High N competes with P
Sometimes nitrogen deficiency shows up on foliage as chlorosis and reddening
High ammoniacal N inhibits Ca and Cu uptake
True
False
Mg is part of the chlorophyll molecule
Mg deficiency is seen on the lower leaves first
Uptake of Mg is affected by K, Ca, MN, NA and NH4
All of the above
A & B
True
False
Electrical conductivity
Alkalinity
Concentrations of CA & Mg
All of the above
True
False
Often show iron deficiencies
Thrive with a nedia pH lower than 6
Thrive with medium to high light levels
All of the above
Higher levels of Magnesium
Higher levels of Manganese, zinc and iron
Lower level of Phosphorus
B & C
All of the above
Is also known a no stretch
Can be used to decrease the media pH
Is the same as 20-10-20
All of the above
True
False