Fertilizers

FERTILIZERS

What are fertilizersFertilizer: A substance added to soil to supply one or more plant nutrients needed for the growth of the plants.

What are fertilizersFertilizer: A substance added to soil to supply one or more plant nutrients needed for the growth of the plants.

Types of fertilizers:-Organic: made of only living materials-Inorganic: made of nonliving materials such as rock

What are fertilizersFertilizer: A substance added to soil to supply one or more plant nutrients needed for the growth of the plants.

Types of fertilizers:-Organic: made of only living materials-Inorganic: made of nonliving materials such as rock

-Natural: Coming from nature-Synthetic: Man Made (made in a laboratory or factory)

Effects on Crops1) Faster plant growth2) Allows healthier plants that are more resistant

to pests and disease

Results:

Effects on Crops1) Faster plant growth2) Allows healthier plants that are more resistant

to pests and disease3) Increased nutrients allows more plants to be

grown in a smaller area

Results: Increased crop yields 30%-50% more plants produced

Nutrients needed by plants

Nutrients:Macronutrients: Used by plants in large amounts

Micronutrients:

Nutrients needed by plants

Nutrients:Macronutrients: Used by plants in large amounts-Hydrogen, Carbon, Oxygen, Nitrogen, Phosphorous, Potassium, Calcium, Magnesium, SulfurMicronutrients:

Nutrients needed by plants

Nutrients:Macronutrients: Used by plants in large amounts-Hydrogen, Hydrogen, Oxygen, Nitrogen, Phosphorous, Potassium, Calcium, Magnesium, SulfurMicronutrients: Used by plants in minute amounts.-Boron, Chlorine, Iron, Magnesium, Molybdenum, Zinc, Nickel

Forms of Synthetic FertilizerQuick Release- Granular (like gravel)- Powdered- LiquidSlow release:- tabs and spikes

Forms of Organic FertilizerInorganic- Phosphate Rock- PotashOrganic- Chicken litter- Manure- Worm castings- Seaweed- Guano- Bone meal- Fish

Assignment

Assignment

Risk of Synthetic Fertilizers