Feeding the world- B6.2.2

what is fish farming?

where government fish quotas prevents over fishing:

• protects fish from predators

• Paracites and disease easily spread

how can farmers reduce use of fertilisers and pesticides?

1. farmers replace soil nutrients by spreading manure to replace fertilisers

2. different crops takes different nutrients so changing crops each year would give soil chance to recover

what are hydroponics?

plants grown in water containing dissolved minerals to ensure they recieve enough minerals.

what are the positives of hydroponics?

they grow quickly and they can stack on each other meaning a large amount of yield is produced.