Module 37: The Green Revolution

What is the US supported development of high yield seed varieties and agricultural technology in less developed countries referred to as?

The Green Revolution

Where was the earliest efforts of development of high yield seeds?

Mexico

What is offspring that is the result of different species referred to as?

Hybrid

Ir36 was a strain of successful experimental ___.

Rice

To have higher yields, what two things would you need?

Water and fertilizer

The Green Revolution had larger harvests. But what negative effect was felt by farmers?

Tied to costly expenses

Is irrigation important in producing high crop yields that the revolution promotes?

Yes

What is the practice of flooding paddies for the growth of seeds referred to as?

Paddy field irrigation

Do farmers move with season?

Yes

What is planting on a plot of land as soon as first crop has been harvested called?

Double cropping

The Green Revolution spread across Asia. What type of production grew as a result?

Rice production

What is planning two to three cops per year in the same land called?

Multi-cropping

What does it mean for world hunger when you have extremely high agricultural yields?

World hunger decreases

Is the Green Revolution a perfect example of hierarchical diffusion?

Did the Green Revolution cause disparity economically?

Why did subsistence farmers disappear when the Green Revolution took effect?

Because wealth took majority of the land

What happens to organic matter when you institute Revolution techniques?

It decreases

What type of residue tends to build up with the more fertilizer and pesticide that you inject into soils?

Chemical

What are the two significant downsides to irrigation?

Soil salinization and groundwater depletion

So what is the concentration of dissolved salt in surface soil called?

soil salinization

Groundwater is the volume of water required for irrigation. What would ground water depletion mean?

The amount of water required for irrigation being lessened

Why is there water scarcity conflict in the first place?

Everything competes for water, and it's limited.

Is there a population growth concern?

Yeah

The UN predicts that food production is only going to outpace population until it hits 2030. What does this mean for population?

Food shortages