Horticulture and the enviroment By Allah Dad Khan

1. How is horticulture interrelatedHow is horticulture interrelated
with the environment?with the environment?

2. What is the environment?What is the environment?
Environment- all living things that affectEnvironment- all living things that affect
the life of an organismthe life of an organism
– Biotic factors- living thingsBiotic factors- living things
– Abiotic factors- non-living thingsAbiotic factors- non-living things

3. What are the important issues ofWhat are the important issues of
horticulture and the environment?horticulture and the environment?
Intensive land useIntensive land use
– Using large fields to get top yieldsUsing large fields to get top yields
Integrated Pest ManagementIntegrated Pest Management
– Using approaches that are environmentallyUsing approaches that are environmentally
friendly to control unwanted organismsfriendly to control unwanted organisms
Public DemandPublic Demand
– Producing high-quality, inexpensive productsProducing high-quality, inexpensive products
without harming the environmentwithout harming the environment

4. Grower DilemmaGrower Dilemma
– Producing quality products, yet dealing withProducing quality products, yet dealing with
concerns about the environmentconcerns about the environment
BiotechnologyBiotechnology
– Genetically changing plants to have usefulGenetically changing plants to have useful
featuresfeatures
EmotionEmotion
– Dealing with different opinions aboutDealing with different opinions about
environmental issues cause emotions to runenvironmental issues cause emotions to run
highhigh

5. What are the benefits ofWhat are the benefits of
horticulture?horticulture?
1.1. Recreational and aesthetic valueRecreational and aesthetic value
2.2. Control soil erosionControl soil erosion
3.3. Absorb atmospheric pollutionAbsorb atmospheric pollution
4.4. Noise and sound bufferNoise and sound buffer
5.5. Control dustControl dust
6.6. Cooling effect in hot weatherCooling effect in hot weather
7.7. Filter fertilizers and pesticides from theFilter fertilizers and pesticides from the
environmentenvironment
8.8. Provide wildlife habitatProvide wildlife habitat
9.9. Increase land valueIncrease land value
10.10. Increase ground water supplyIncrease ground water supply

6. How does horticulture maintainHow does horticulture maintain
water supplies?water supplies?
1.1. Holds moisture in upper soil layerHolds moisture in upper soil layer
2.2. Reduces runoff and soil erosionReduces runoff and soil erosion
3.3. Filters pesticidesFilters pesticides

7. How does horticulture maintain theHow does horticulture maintain the
atmosphere?atmosphere?
1.1. Absorbs ozone, carbon dioxide, andAbsorbs ozone, carbon dioxide, and
hydrogen fluoridehydrogen fluoride
2.2. Produces oxygenProduces oxygen

8. Dangers from horticulture practicesDangers from horticulture practices
1.1. Excessive and improper use ofExcessive and improper use of
pesticidespesticides
2.2. Soil erosionSoil erosion
3.3. Deplete groundwater suppliesDeplete groundwater supplies
4.4. Improper disposal of wastesImproper disposal of wastes

9. What is pollution?What is pollution?
Harmful or degrading materials in theHarmful or degrading materials in the
environmentenvironment

10. What is non-point source pollution?What is non-point source pollution?
Harmful materials coming from sourcesHarmful materials coming from sources
that cannot be specifically identifiedthat cannot be specifically identified
– Examples:Examples:
Leaching and runoff of nutrients or pesticidesLeaching and runoff of nutrients or pesticides
Soil erosion and runoff loss of sedimentSoil erosion and runoff loss of sediment
Beneficial non-target soil organisms killed byBeneficial non-target soil organisms killed by
pesticidespesticides
Excessive use of water for irrigation reducesExcessive use of water for irrigation reduces
ground water suppliesground water supplies

11. What is the danger of non-pointWhat is the danger of non-point
source pollution?source pollution?
1.1. Pest populations may develop resistancePest populations may develop resistance
to pesticidesto pesticides
2.2. Follow steps that reduce the potential forFollow steps that reduce the potential for
damage.damage.

12. What is point source pollution?What is point source pollution?
Harmful materials from a definite andHarmful materials from a definite and
identifiable locationidentifiable location
– ExampleExample
Pesticide spill into streamPesticide spill into stream