Biology B6 (8)

Ways of increasing agricultural yields 

fertilisers 

plants need elements like nitrogen, pottasium, and phosphorous so they can make important compounds like proteins in order to grow

farmers sue fertilisers to replace these mising elements or provide more of them. this helps to increase crop yields by boosting plants growth

however excess fertliser can run off fields and into rivers lakes and ponds which can result in the death of organisms living in the water 

pest control stops pests eating crops

pesticides 

pesticides are a form of chemical pest control which are sprayed onto crops to kill the pests that damage them. they are often poisonous…