Green revolution leads to soil infertility.Explain.
Answers
Answer:
Explanation:
My understanding is that agricultural techniques used in the US were shown to countries that had issues, such as soil that was too acidic. In situations where genetically improved crops were grown it would have reduced the soil fertility but for the use of synthetic fertilizers (non organic) because yields increased. In the case of adding lime to increase the pH of the soil the same situation. Now you could remove nutrients using crops that were not tolerant of low pH soils, but the nutrients could be replaced with commercial fertilizer. Techniques that reduced soil erosion would reduce the amount of nutrients lost when the soil left the field in wind or water. Some techniques like the use of cover crops would be an example of such. If you grow crops which remove nutrients, and all of them do this, then you have to replace those nutrients or the soil fertility will decrease with time.