Soil Nutrient Supplies and Fertilizers

Question 1

How are nutrients replenished in the soil solution?

Answer 1

soil reserve, fertilizers

Question 2

Colloid

Answer 2

organic and inorganic matter with very small particle size but high overall SA

Question 3

Organic fertilizer

Answer 3

derived from living matter and contain carbon

Question 4

Inorganic fertilizer

Answer 4

Synthetic or mined/processed fertilizers

Question 5

N fert production

Answer 5

using natural gas and high temp/pressure to turn N2 gas to NH3

Question 6

P fert production

Answer 6

dissolving phosphate rock with sulfuric acid

Question 7

K fert production

Answer 7

purified from natural deposits

Question 8

Who regulates fertilizers and their sale in canada?

Answer 8

Canadian Food Inspection Agency (CFIA)

Question 9

What % of P2O5 is P

Answer 9

44%

Question 10

What % of K2O is K

Answer 10

83%

Question 11

What fertilizer can no longer be sold in Canada? why?

Answer 11

Ammonium nitrate. it can be weaponized

Question 12

N use efficiency

Answer 12

50%

Question 13

Critical considerations for fertilizer

Answer 13

understanding nutrient cycling to not apply more than will wo