Question

why do farmers set fire to their own grasslands in the praries every year?

Answer 1

Because continued farming makes unfertile to land that why farmers set fire to new ones

Answer 2

Fires can help seed new plants. Many seeds have a thick outer shell that needs to be broken before the seed will start to germinate. Fire can break this shell and then the seed ends up laying in a nutrient rich bed to start growing. Healthy soil is the primary goal of using fire as a tool. Secondary goals of prescribed burn include brush and weed control. Fires can even help control ticks and parasitic worms that might infect livestock that graze on the land.

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