Soil Module 2 Quiz | OceanRemote Education

1 What is the ideal pH range for most vegetables?

A) 5.0-6.0 B) 6.0-7.0 C) 7.0-8.0 D) 8.0-9.0

2 What happens to nutrients in highly acidic soil (pH < 5.5)?

A) Optimal availability B) No change C) Aluminum toxicity, low P, Ca, Mg D) Iron deficiency only

3 What amendment raises soil pH (reduces acidity)?

A) Lime (calcium carbonate) B) Sulfur C) Compost D) Pine needles

4 What amendment lowers soil pH (reduces alkalinity)?

A) Lime B) Sulfur C) Wood ash D) Bone meal

5 What pH is ideal for potatoes?

A) 5.0-6.5 B) 6.0-7.0 C) 7.0-8.0 D) 8.0-9.0

6 How long does pH adjustment take?

A) 1 week B) 2 weeks C) 3-6 months D) 1 year

7 How often should you calibrate pH sensors?

A) Never B) Monthly C) Daily D) Yearly