9/29 Lecture

Question 1

Soil Loss

Answer 1

can be avoided. solutions to soil loss also conserve other nutrients. reduce nutrient loads in waterways.

Question 2

Prairie Strips

Answer 2

narrow, strategically placed rows of native prairie vegetation integrated into agricultural fields. help conserve soil

Question 3

Contour Farming

Answer 3

a method of tilling and planting crops along the natural curves of a slope to conserve soil and water

Question 4

Terracing

Answer 4

an agricultural practice of creating a level, stepped, or flat topped land surface on a slope to prevent erosion and conserve soil and water

Question 5

No-Till Farming

Answer 5

soil is disturbed minimally when seeds are planted, conserves soil moisture and reduces erosion, enhances carbon sequestration of soil. Requires specialized (expensive) equipment.

Question 6

Cover Crops

Answer 6

plants that hold in soil and feed the soil with their nutrients when they die. help break pest problems, outcompete weeds, and capture excess nutrients

Question 7

Agroforestry

Answer 7

the practice of planting trees and shrubs in a field of crops (preserves soil fertility, prevents erosion, makes for greater biodiversity)

Question 8

Alternatives to Synthetic Pesticides

Answer 8

biological controls (natural predators, parasites, disease causing bacteria and viruses). need to be careful when introducing new species

Question 9

Integrated Pest Management

Answer 9

crops and pests are evaluated as parts of an ecosystem. includes: biological controls, cultivation controls, and possibly applying small amounts of pesticides

Question 10

Hydroponics

Answer 10

growing plants without soil

Question 11

Aquaponics

Answer 11

couples aquaculture with agriculture (plants filter ammonia out of water)

Question 12

Vertical Farming

Answer 12

saves land, often uses hydroponics. Plants can focus on growth of stems and fruit not root growth. Energy intensive

Question 13

Organic Agriculture

Answer 13

no hormones, antibiotics, pesticides, synthetic fertilizers, genetic modification

Question 14

Local Food Movement

Answer 14

movement to buy food grown in a more environmentally friendly and ethical manner