What are the major ingredients of fertilizers?
Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients: nitrogen, phosphorus, and potassium.
Some fertilizers also contain certain “micronutrients,” such as zinc and other metals, that are necessary for plant growth..
Why do farmers use chemical fertilizers?
These nutrients allow plants to grow. … Farmers turn to fertilizers because these substances contain plant nutrients such as nitrogen, phosphorus, and potassium. Fertilizers are simply plant nutrients applied to agricultural fields to supplement required elements found naturally in the soil.
Why fertilizers are not good for soil?
Though chemical fertilizers increase crop production; their overuse has hardened the soil, decreased fertility, strengthened pesticides, polluted air and water, and released greenhouse gases, thereby bringing hazards to human health and environment as well.
How do fertilizers affect human health?
Depending on the amount of fertilizer consumed and the toxic metals that fertilizers have. It may cause disturbances of the kidneys, lungs and liver and even cause cancer.
What harmful chemicals are in fertilizers?
Inorganic fertilizers are manufactured from recycled waste products which may contain large concentrations of hazardous chemicals, including zinc, lead, cadmium, chromium and even arsenic. These chemicals may result in harmful effects to human health or even death.
What chemicals are in Fertilisers?
Fertilisers may contain nitrogen, phosphorus and potassium compounds to promote plant growth. Fertilisers that supply all three elements are often called NPK fertilisers, after the chemical symbols for these three elements.