Soil
This flower has a different color depending on the pH level of the soil it's in
What are hydrangeas
This is grown in an orchard
What are fruit trees
This crop's infection caused a famine in Ireland between 1846 and 1851
What is potato
Adding 'lime' does this to soil
What is neutralizes acil
Cows are milked this many times per day
What is 2
The agricultural blight of the 1930s in the USA is known as this
What is the Dust Bowl
What is June
This is the world's most cultivated plant
What is wheat
The invention of the plow traces back to this ancient civilization
What was Sumer
This is the bright yellow crop you see in the countryside during May
What is rapeseed
A silage is used for
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
This flower is particularly beneficial for farmers in restoring nitrogen content to the soil
What is clover
The ancient Mesopotamians linked their farming activities to the movements of this planet
What is Venus
This sheep is bread for both its wool and meat
What is the lonk
Since the 1950s, this is how much the world crop production has increased by
What is x3