Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is a major way that weeds reduce rice yields?
What is a major way that weeds reduce rice yields?
- By serving as alternate hosts of insect pests and diseases
- By competing with rice plants for sunlight, moisture, space, and soil nutrients (correct)
- By releasing toxic chemicals that harm rice plants
- By increasing the water requirements of rice plants
In which type of rice paddies are weeds a more serious problem?
In which type of rice paddies are weeds a more serious problem?
- Flooded rice paddies
- Rainfed rice paddies
- Transplanted irrigated rice paddies
- Upland and direct seeded wet land (correct)
What is an additional role that weeds play in rice cultivation?
What is an additional role that weeds play in rice cultivation?
- They serve as a food source for beneficial insects
- They increase the fertility of the soil
- They improve the water-holding capacity of the soil
- They serve as alternate hosts of insect pests and diseases (correct)
What is the definition of a weed?
What is the definition of a weed?
Signup and view all the answers
What is NOT a way that weeds affect rice cultivation?
What is NOT a way that weeds affect rice cultivation?
Signup and view all the answers
What is one of the essential resources that weeds and rice plants compete for?
What is one of the essential resources that weeds and rice plants compete for?
Signup and view all the answers
What is a secondary role that weeds play in rice cultivation?
What is a secondary role that weeds play in rice cultivation?
Signup and view all the answers
In which type of rice cultivation do weeds have a relatively smaller impact?
In which type of rice cultivation do weeds have a relatively smaller impact?
Signup and view all the answers
What is the primary effect of weeds on rice yields?
What is the primary effect of weeds on rice yields?
Signup and view all the answers
What is the main difference between the impact of weeds in upland and transplanted irrigated rice paddies?
What is the main difference between the impact of weeds in upland and transplanted irrigated rice paddies?
Signup and view all the answers
