EASY
8th CBSE
IMPORTANT
Earn 100

What is a fertilizer? Name any two fertilizers. State two harmful effects caused by the excessive use of fertilizers.

Important Questions on Crop Production and Management

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 55
Explain how soil gets affected by the repeated growing of crops in the same fields. How does use of fertilizers help the farmers?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 56
What is weeding? Why is weeding necessary?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 57
What are weedicides? Name one weedicide.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 58
What precaution should be taken while spraying weedicides? Why?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 59
Give any four differences between manure and fertilizers
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 60
Define harvesting.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 60
Define threshing.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 1 - Crop Production and Management>Short Answer Type Questions>Q 60
Define winnowing.