Plant Nutrition and Pruning Flashcards
1
Q
How many recognized elements are considered essential for plant growth?
A
17
2
Q
The three secondary macronutrients are:
A
Calcium Magnesium, sulfre
3
Q
True or False, in the US, phosphorus in fertilizers is expressed as phosphate.
A
True
4
Q
What is the most abundant element in soil?
A
Oxygen
5
Q
What is the second most abundant element in soil?
A
Silicon
