About Lesson
IMPACT OF MODERN OR CHEMICAL BASED AGRICULTURE
- Excessive and unbalanced use of pesticides and inorganic fertilizers
- depletion of natural resource base and environmental pollutions
- soil erosion
- mountain desertification
- environmental degradation
- declining of soil fertility and crop productivity
- depletion of natural resources
- using dung as a fuel in rural areas etc. are the most important challenges in the 21st century of Nepalese farmers.
- ecological imbalance and severe health hazards on humans and animal
- loss of indigenous variety and biodiversity are emerging as major problems
- many insects and diseases have become resistant to chemical pesticides
- small farmers are facing non-affordable and unreliable high cost
- short term but leads to damage of the essential natural food system and biodiversity
- pesticides are a major health hazard for farmers and farm workers, particularly in developing countries, as well as to wildlife
- chemical nitrogen fertilizers used in conventional agriculture are very expensive