Question

Advantage and disadvantage of crop improvement

Answer 1

Advantages

Yields of primary crops such as rice and wheat increasedprice of food declinedrate of increase in crop yields generally kept pace with population growth

Disadvantages

excessive reliance on pesticides, and chemical fertilizers has negatively impacted the environment and rural society"ecological diseases" have been associated with the intensification of food productionuse of chemicals on fields creates run-off, excess runs off into rivers and lakes causing pollution

Answer 2

3 ways to improve crops are:
1) planting leguminous crops along with cereal crops: This will replenish soil nitrogen content.
2) Using Vermicompost: Earthworms recycle the soil by turning soil and thus allowing air circulation in the soil.
3) Inter cropping and mixed cropping.