Chapter 15 #3

Question 1

conservtion tillage

Answer 1

method of cultivation

residues from previous crops are left in soil

hold it in place until new seeds are planted

Question 2

no-tillage

Answer 2

soil is undisturbed in the winter

Question 3

crop rotation

Answer 3

planting of different crops in the same field over a period of years

Question 4

contour plowing

Answer 4

plowing that matches the natural contour of the land

Question 5

typical crop rotation

Answer 5

corn->soybeans->oats->alfalfa

Question 6

strip cropping

Answer 6

contour plawing that produces alternating strpis of crops along natural contours

Question 7

terracing

Answer 7

produces level areas to reduce soil erosion

Question 8

organic fertilizers

Answer 8

animal manure, crop residues, bone meal, compost

complex

Question 9

commercial inorganic fertilizers

Answer 9

chemical compunds

soluble, immediately ready to plants

Question 10

Soil reclamation

Answer 10

1. stabalize land to prevent erosion
2. restore soil to previous fertility

Question 11

shelterbelt

Answer 11

row of tress planted in row to windbreak and prevent erosion

Question 12

agroforestry

Answer 12

concurrent use of agriculture and forestry techniques on the same area to improve degraded soil and offer economic benefits

Question 13

Hugh H. Bennet

Answer 13

soil scientist

spoke about dangers of erosion

Question 14

Soil Conservation Act

Answer 14

mission was to work with U.S citizens to conserve natural resources

Question 15

Food security act

Answer 15

farmers with highly erodable land make 5 year conservation plan

Question 16

Conservation reserve program

Answer 16

pays farmers to stop producing crops on highly erodable land