Question

In cultivation, what may be added to remove adverse effect of acid rain and to maintain pH of the soil ?

Answer 1

Explanation:

This figure illustrates the pH level at which key organisms may be lost as their environment becomes more acidic. Not all fish, shellfish, or the insects that they eat can tolerate the same amount of acid.

An ecosystem is a community of plants, animals and other organisms along with their environment including the air, water and soil. Everything in an ecosystem is connected. If something harms one part of an ecosystem – one species of plant or animal, the soil or the water – it can have an impact on everything else.

Answer 2

The elevation in soil acidity as the result of acid rain or the use of excessive nitrogenous fertilisers can be removed by adding basic substances to neutralize the acidic compounds. eg. Liming of the soil.

• Limestone is widely used as the acid neutraliser in the agricultural field.
• Lime is chemically the calcium carbonate.
• When acidic soil reacts with the carbonate of lime, it neutralises the soil by converting it into aluminium oxide, carbon dioxide and water along with the neutral clay.
• Soil acidity is estimated by pH measurement.
• The rate of soil acidification can be also reduced through several management strategies such as avoiding the usage of more acidifying fertilisers, minimizing the leaching of nitrate( If nitrate is taken up by the plants, soil acidity is somewhat reduced than later), by achieving a high rate of crop recovery of applied nitrogen and sulfur fertilisers using Legumes showing symbiotic association with Rhizobium species that fix atmospheric nitrogen in the soil and use of certain organic manures that often contains basic anions and carbonate ions to neutralize the acidification.