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Questions and Answers
What is a benefit of companion cropping in terms of ecosystem services?
What is a benefit of companion cropping in terms of ecosystem services?
- Decreased crop yields
- Reduced biodiversity
- Increased pesticide use
- Increased biodiversity and ecosystem services (correct)
What is the main purpose of trap crops?
What is the main purpose of trap crops?
- To increase soil fertility
- To provide shade for the main crop
- To attract beneficial insects
- To repel pests from the main crop (correct)
How do some companion crops control pests?
How do some companion crops control pests?
- Through chemical signals or physical barriers (correct)
- Through physical barriers
- Through Integrated Pest Management (IPM) strategies
- Through biological control
What is the role of legume companion crops in nitrogen fixation?
What is the role of legume companion crops in nitrogen fixation?
What is an example of a polyculture?
What is an example of a polyculture?
What is a characteristic of polycultures?
What is a characteristic of polycultures?
What is a benefit of using companion crops for pest control?
What is a benefit of using companion crops for pest control?
What is an example of a trap crop?
What is an example of a trap crop?
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Study Notes
Benefits of Companion Crops
- Increased biodiversity and ecosystem services
- Improved soil health and structure
- Enhanced nutrient cycling and uptake
- Increased crop yields and quality
- Reduced pest and disease pressure
- Decreased need for fertilizers and pesticides
- Creates a more resilient and adaptable agroecosystem
Trap Crops
- A type of companion crop that attracts pests away from the main crop
- Examples: nasturtiums to attract aphids, radishes to attract cucumber beetles
- Can be used to reduce pest pressure on the main crop
- Can also be used to monitor pest populations and detect early infestations
Pest Control through Companion Crops
- Some companion crops repel or deter pests through chemical signals or physical barriers
- Examples: basil repels aphids and mites, marigolds repel nematodes
- Can be used to reduce the need for pesticides and maintain ecosystem balance
- Can also be used to improve the effectiveness of integrated pest management (IPM) strategies
Polycultures
- A type of companion cropping where multiple crops are grown together in the same bed
- Can increase overall biodiversity and ecosystem services
- Can improve resource use efficiency and reduce competition between crops
- Examples: the "Three Sisters" method of growing corn, beans, and squash together
- Can be used to create more resilient and adaptable agroecosystems
Nitrogen Fixation through Companion Crops
- Legume companion crops (e.g. beans, peas, clover) have nodules on their roots that fix atmospheric nitrogen into a form usable by plants
- Can reduce the need for synthetic fertilizers and improve soil fertility
- Examples: planting nitrogen-fixing legumes with non-legume crops like corn or wheat
- Can improve soil health and reduce environmental pollution
Benefits of Companion Crops
- Companion crops increase biodiversity and ecosystem services, leading to a healthier and more resilient agroecosystem.
- They improve soil health and structure by adding organic matter, reducing erosion, and increasing water retention.
- Companion crops enhance nutrient cycling and uptake, making nutrients more available to the main crop.
- They increase crop yields and quality by providing shade, support, and nutrients to the main crop.
- Companion crops reduce pest and disease pressure by attracting beneficial insects and repelling pests.
- They decrease the need for fertilizers and pesticides, reducing environmental pollution and promoting sustainable agriculture.
Trap Crops
- Trap crops are a type of companion crop that attracts pests away from the main crop, reducing pest pressure and damage.
- Examples of trap crops include nasturtiums, which attract aphids, and radishes, which attract cucumber beetles.
- Trap crops can be used to monitor pest populations and detect early infestations, allowing for early intervention.
Pest Control through Companion Crops
- Some companion crops repel or deter pests through chemical signals or physical barriers, reducing the need for pesticides.
- Examples of pest-repellent companion crops include basil, which repels aphids and mites, and marigolds, which repel nematodes.
- Companion crops can improve the effectiveness of integrated pest management (IPM) strategies by reducing pest pressure and promoting ecosystem balance.
Polycultures
- Polycultures involve growing multiple crops together in the same bed, increasing overall biodiversity and ecosystem services.
- This approach improves resource use efficiency and reduces competition between crops, leading to more resilient and adaptable agroecosystems.
- Examples of polycultures include the "Three Sisters" method of growing corn, beans, and squash together.
- Polycultures can be used to create more diverse and resilient agroecosystems.
Nitrogen Fixation through Companion Crops
- Legume companion crops have nodules on their roots that fix atmospheric nitrogen into a form usable by plants, reducing the need for synthetic fertilizers.
- Examples of nitrogen-fixing legumes include beans, peas, and clover, which can be planted with non-legume crops like corn or wheat.
- Nitrogen-fixing companion crops improve soil fertility, reduce environmental pollution, and promote sustainable agriculture.
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