What is a main purpose of crop rotation?
AnswerKeeping soil healthy and reducing pests
Rotating crops balances soil nutrients and breaks pest cycles.
Nature · Facts & stats
Agro facts & stats
7 fact-checked facts about agriculture, crops, soil and farming science, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which staple crop is often grown in flooded paddies?
AnswerRice
Rice is commonly grown in flooded paddy fields.
Going deeper
Why do farmers plant legumes such as beans or clover in rotation?
AnswerThey add nitrogen to the soil
Legumes host bacteria that fix nitrogen from the air.
What is hydroponics?
AnswerGrowing plants without soil in nutrient-rich water
Hydroponic systems feed roots with dissolved nutrients.
Which insect is a key pollinator for many food crops?
AnswerHoneybee
Honeybees pollinate many fruits, nuts and vegetables.
Expert level
In what year did Norman Borlaug win the Nobel Peace Prize?
Answer1970
Borlaug received the Nobel Peace Prize in 1970.
Most common crops grow best in soil with roughly what pH?
AnswerAbout 6 to 7
Slightly acidic to neutral soil suits most crops.
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