Water Pollution

Fertilizers and Pesticides

Fertilizers

• materials used to provide plant nutrients which are deficient in soils.

• contain essential ingridients plants need

• Farmers spray fertilizers to improve the soil’s fertility

Types of Fertilizers

• Complete inorganic fertilizers • Special purpose fertilizer • Liquid fertilizers• Slow-release fertilizer• Fertilizer with insecticide

Pesticides

• 'Pesticide' is a broad term, covering a range of products that are used to control pests.

• Farmers use pesticides to:– protect crops– Prevent animals and insects from contaminating

foods– safeguard human health

Types of Pesticides

• Fungicides fungi and mould killers• Insecticides insect killers • Herbicides weed killers

Effects of Fertilizers and Pesticides

• Eutrophication• Pollution of water• Suffocation • Death of living

organisms• Diseases on humans

Solutions

• Read carefully the instructions- no overdose

• Use safely and effectively

• Keep fertilizers, leaves and grass clippings off streets and driveway

prevent soil erosion