Soil
Season
General
Equipment
History
100

This flower has a different color depending on the pH level of the soil it's in

What are hydrangeas 

100

This is grown in an orchard

What are fruit trees

100

This crop's infection caused a famine in Ireland between 1846 and 1851

What is potato

200

Adding 'lime' does this to soil 

What is neutralizes acil

200

Cows are milked this many times per day

What is 2

200

The agricultural blight of the 1930s in the USA is known as this

What is the Dust Bowl

300
Sheep shearing season begins with this month

What is June

300

This is the world's most cultivated plant

What is wheat

300

The invention of the plow traces back to this ancient civilization

What was Sumer

400

This  is the bright yellow crop you see in the countryside during May

What is rapeseed

400

A silage is used for

What is cattle feed
400

In the 1990s, this illness previously thought to be confined to cattle was found to have been expanded to impact livestock, other animals, and even humans

What is mad cow disease

500

This flower is particularly beneficial for farmers in restoring nitrogen content to the soil 

What is clover

500

The ancient Mesopotamians linked their farming activities to the movements of this planet

What is Venus

500

This sheep is bread for both its wool and meat

What is the lonk

500

Since the 1950s, this is how much the world crop production has increased by

What is x3