Weeds and Rice Yield
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Questions and Answers

What is the primary way weeds affect rice yields?

  • By altering soil pH
  • By damaging rice plants directly
  • By attracting pests that target rice
  • By competing with rice plants for resources (correct)

Which of the following resources do weeds compete with rice plants for?

  • Air humidity
  • Soil moisture
  • Soil temperature
  • Space, sunlight, and soil nutrients (correct)

What is the ultimate consequence of weeds in rice fields?

  • Reduced rice yields (correct)
  • Increased rice yields
  • Improved soil health
  • Decreased pest populations

What is the primary mechanism by which weeds impact rice plants?

<p>By competing for resources (C)</p> Signup and view all the answers

What is the specific consequence of weeds competing with rice plants for resources?

<p>Reduced rice yields (B)</p> Signup and view all the answers

Weeds are typically more problematic in which type of rice paddies?

<p>Upland and direct seeded wet land (D)</p> Signup and view all the answers

What role do weeds play in relation to insect pests and diseases?

<p>They serve as alternate hosts of insect pests and diseases (D)</p> Signup and view all the answers

What is the common characteristic of weeds that distinguishes them from other plants?

<p>They grow in places where they are not wanted (A)</p> Signup and view all the answers

What is a primary consequence of weeds competing with rice plants for resources?

<p>Rice yields are reduced (A)</p> Signup and view all the answers

What is the relationship between weeds and rice plants?

<p>Weeds compete with rice plants (B)</p> Signup and view all the answers

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