Unit 8 Study Guide

Question 1

traditional agriculture

Answer 1

Used by people for centuries, turns out to be a more sustainable form of agriculture.
instead of monoculture crop; traditional agriculture focuses on multiple crops. Lets look @ different strategies:
1. crop rotation: alternation of the crop planted in a field from one season/year to the next.
-helps restore nutrients to soil
-strategy to avoid pest infestation&disease.
-helps prevent erosion of top soil.

Question 2

polyvarietal cultivation

Answer 2

When farmers plant several varieties of he same crop on a plot.
-reduces chances of losing whole crops to pest/disease because some varieties may be proving to be more resistant.=

Question 3

intercropping

Answer 3

when famers plants rows of two or more different crops on the same plot @ the same time.
-plants can complement each other by retaining more moisture/ providing natural fertilizer in the case of legumes which are. nitrogen fixer

Question 4

shelterbelts

Answer 4

-planting rows of fast growing trees around crop plantings to provide windbreaks there by reducing soil erosion by wind.
B: polyculture; plant many different crops which mature @ various times together
-stategy provides a sustainable yield of plants @ different times of year & constant food supply
-weeds have a difficult time establishing themselves &multiple habitats encourage proliferation of natural predators/pests.
-less use of herbicides and pesticles

Question 5

No-till farming

Answer 5

rather than till the soil, which increases soil erosion. Farmer drills furrow into the soil&seeds deposites in the hole.
This style of farming is practiced by nearly half of the acreage farmed in the U.S.