Question

Which of the following is a method of sustainable agriculture?

• A. Biogas production
• B. Recycling of crop waste
• C. Use of chemical fertilizers
• D. Use of pesticides to destroy pests

Answer 1

Answer: (A), (B)

The correct options are
A Biogas production
B Recycling of crop waste

The decline in the fertility of the soil and the increase of pest compel the farmers to use pesticides and fertilisers. But though the excessive use of fertilisers and chemical pesticides provide profit for a short period gradually the land may become barren. And it is in these circumstances that sustainable agriculture becomes relevant. Sustainable agriculture can be understood as an eco-friendly approach to agriculture. Here the method adopted is to reduce the use of fertilisers and pesticides. Biogas is produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Crop waste is used as fertilisers to enrich the soil for agriculture. So methods like biogas production and recycling of crop waste are methods used in sustainable agriculture.