Some of the harm chemical fertilizers may cause include waterway pollution, chemical burn to crops , increased air pollution, acidification of the soil and mineral depletion of the soil.
What are the harmful effects of using excessive fertilizers Class 9?
1)fertilizers may cause respiratory ailments, cardiac disease , and several cancers, as well as can “inhibit crop growth, increase allergenic pollen production. 2)Excess nitrogen used in crop fertilization can contribute to the release of greenhouse gases such as carbon dioxide and nitrous oxide into the atmosphere.
What are the harmful effects of using excessive fertilizers Class 8?
1)The excessive use of fertilisers changes the chemical nature of soil and makes the soil less fertile . 2)The excessive use of fertilisers causes water pollution in ponds,lakes and rivers.
What is the effect of excessive use of chemical fertilizers?
However, excessive use of chemical fertilizers has led to several issues such as serious soil degradation , nitrogen leaching, soil compaction, reduction in soil organic matter, and loss of soil carbon. In addition, the efficacy of chemical fertilizers on crop yield has been decreasing over time [29, 31–32].
What are the harmful effects of using excessive fertilizers?
- result in stunted growth and withering or death to the plants commonly known as leaf scorch;
- decrease the organic matter in the soil leading to soil acidification;
How can we prevent negative effects of fertilizers?
The efficiency of fertilizer nitrogen can be increased and losses reduced, by matching supply with crop demand , optimizing split application schemes, changing the form to suit the conditions, and use of slow-release fertilizers and inhibitors.
What are advantages and disadvantages of fertilizers?
Manure adds nutrients to the soil without affecting its fertility. It does not damage the crops and produces healthy plants. Fertilizers are chemicals which lower the fertility of the soil if used regularly . They also damage the crops and make them unhealthy for consumption.
Are fertilizers harmful to humans?
Use of excessive quantity of synthetic fertilizers are harmful for human health . It is contaminating the surface water via runoffs and its consequent effects. High levels of nitrates and nitrites in chemical fertilizer may cause some disease like hemoglobin disorders, Alzheimer’s disease and diabetes mellitus.
Why are fertilizers bad?
Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. ... However, applying excessive amounts of fertilizer leads to the release of harmful greenhouse gases into the atmosphere and the eutrophication of our waterways.
What are the effects of fertilizers and pesticides?
Excessive use of fertilizers and pesticides by farmers in agriculture to enhance crop yield is detrimental to environment and human health. Fertilizers and pesticides use has led to the problem of air, water and soil pollution .
What are disadvantages of fertilizers?
Disadvantages of Fertilizers
They are expensive . The ingredients in the fertilizers are toxic to the skin and respiratory system. Excessive use of fertilizers damages the plants and reduces soil fertility. Leaching occurs and the fertilizers reach the rivers causing eutrophication.
What are fertilizers for Class 8?
Answer: Fertilisers are the nutrient rich chemical substances that are added to the soil to increase the fertility of the soil . Use of fertilisers increases the fertility of the soil and results in better yields of food crops when added in required amount to the soil.
What are the advantages of Levelling Class 8?
Following are the advantages of levelling: Levelling helps to prevent soil erosion caused by wind or air . It helps in sowing the seeds uniformly, and thus helps the plants to grow uniformly too. It helps in proper irrigation by allowing the water to get distributed uniformly throughout the soil.
What are the two harmful effects of chemical fertilizers?
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.
Can fertilizer cause diseases?
What causes plant food poisoning? Plant fertilizers can poison people and pets if they are inhaled or accidentally ingested. Touching the fertilizer may cause skin irritation, and ingesting it may be poisonous. Nitrates are the ingredients that cause the poisoning.
What is the effect of potassic fertilizers?
The results, though statistically insignificant at 5% level, showed yield improvements with the application of potassium fertilizers. Different levels of potassium treatment caused quality improvements such as higher specific weight, and more total soluble solids (TSS).
